Mercurial > hg
view contrib/perf.py @ 51948:ed90f4a1bb2c
tests: conditionalize `chmod` usage in `test-upgrade-repo.t`
While the command itself doesn't error out on Windows, it also doesn't make the
filesystem readonly. Therefore the repo gets altered to drop dirstate-v2, and
puts it out of sync with that happens on Linux.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Thu, 03 Oct 2024 19:49:05 -0400 |
parents | ca7bde5dbafb |
children | e3952d8cfeb5 |
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# perf.py - performance test routines '''helper extension to measure performance Configurations ============== ``perf`` -------- ``all-timing`` When set, additional statistics will be reported for each benchmark: best, worst, median average. If not set only the best timing is reported (default: off). ``presleep`` number of second to wait before any group of runs (default: 1) ``pre-run`` number of run to perform before starting measurement. ``profile-benchmark`` Enable profiling for the benchmarked section. (by default, the first iteration is benchmarked) ``profiled-runs`` list of iteration to profile (starting from 0) ``run-limits`` Control the number of runs each benchmark will perform. The option value should be a list of `<time>-<numberofrun>` pairs. After each run the conditions are considered in order with the following logic: If benchmark has been running for <time> seconds, and we have performed <numberofrun> iterations, stop the benchmark, The default value is: `3.0-100, 10.0-3` ``stub`` When set, benchmarks will only be run once, useful for testing (default: off) ''' # "historical portability" policy of perf.py: # # We have to do: # - make perf.py "loadable" with as wide Mercurial version as possible # This doesn't mean that perf commands work correctly with that Mercurial. # BTW, perf.py itself has been available since 1.1 (or eb240755386d). # - make historical perf command work correctly with as wide Mercurial # version as possible # # We have to do, if possible with reasonable cost: # - make recent perf command for historical feature work correctly # with early Mercurial # # We don't have to do: # - make perf command for recent feature work correctly with early # Mercurial import contextlib import functools import gc import os import random import shutil import struct import sys import tempfile import threading import time import mercurial.revlog from mercurial import ( changegroup, cmdutil, commands, copies, error, extensions, hg, mdiff, merge, util, ) # for "historical portability": # try to import modules separately (in dict order), and ignore # failure, because these aren't available with early Mercurial try: from mercurial import branchmap # since 2.5 (or bcee63733aad) except ImportError: pass try: from mercurial import obsolete # since 2.3 (or ad0d6c2b3279) except ImportError: pass try: from mercurial import registrar # since 3.7 (or 37d50250b696) dir(registrar) # forcibly load it except ImportError: registrar = None try: from mercurial import repoview # since 2.5 (or 3a6ddacb7198) except ImportError: pass try: from mercurial.utils import repoviewutil # since 5.0 except ImportError: repoviewutil = None try: from mercurial import scmutil # since 1.9 (or 8b252e826c68) except ImportError: pass try: from mercurial import setdiscovery # since 1.9 (or cb98fed52495) except ImportError: pass try: from mercurial import profiling except ImportError: profiling = None try: from mercurial.revlogutils import constants as revlog_constants perf_rl_kind = (revlog_constants.KIND_OTHER, b'created-by-perf') def revlog(opener, *args, **kwargs): return mercurial.revlog.revlog(opener, perf_rl_kind, *args, **kwargs) except (ImportError, AttributeError): perf_rl_kind = None def revlog(opener, *args, **kwargs): return mercurial.revlog.revlog(opener, *args, **kwargs) def identity(a): return a try: from mercurial import pycompat getargspec = pycompat.getargspec # added to module after 4.5 _byteskwargs = pycompat.byteskwargs # since 4.1 (or fbc3f73dc802) _sysstr = pycompat.sysstr # since 4.0 (or 2219f4f82ede) _bytestr = pycompat.bytestr # since 4.2 (or b70407bd84d5) _xrange = pycompat.xrange # since 4.8 (or 7eba8f83129b) fsencode = pycompat.fsencode # since 3.9 (or f4a5e0e86a7e) if pycompat.ispy3: _maxint = sys.maxsize # per py3 docs for replacing maxint else: _maxint = sys.maxint except (NameError, ImportError, AttributeError): import inspect getargspec = inspect.getargspec _byteskwargs = identity _bytestr = str fsencode = identity # no py3 support _maxint = sys.maxint # no py3 support _sysstr = lambda x: x # no py3 support _xrange = xrange try: # 4.7+ queue = pycompat.queue.Queue except (NameError, AttributeError, ImportError): # <4.7. try: queue = pycompat.queue except (NameError, AttributeError, ImportError): import Queue as queue try: from mercurial import logcmdutil makelogtemplater = logcmdutil.maketemplater except (AttributeError, ImportError): try: makelogtemplater = cmdutil.makelogtemplater except (AttributeError, ImportError): makelogtemplater = None # for "historical portability": # define util.safehasattr forcibly, because util.safehasattr has been # available since 1.9.3 (or 94b200a11cf7) _undefined = object() def safehasattr(thing, attr): return getattr(thing, _sysstr(attr), _undefined) is not _undefined setattr(util, 'safehasattr', safehasattr) # for "historical portability": # define util.timer forcibly, because util.timer has been available # since ae5d60bb70c9 if safehasattr(time, 'perf_counter'): util.timer = time.perf_counter elif os.name == b'nt': util.timer = time.clock else: util.timer = time.time # for "historical portability": # use locally defined empty option list, if formatteropts isn't # available, because commands.formatteropts has been available since # 3.2 (or 7a7eed5176a4), even though formatting itself has been # available since 2.2 (or ae5f92e154d3) formatteropts = getattr( cmdutil, "formatteropts", getattr(commands, "formatteropts", []) ) # for "historical portability": # use locally defined option list, if debugrevlogopts isn't available, # because commands.debugrevlogopts has been available since 3.7 (or # 5606f7d0d063), even though cmdutil.openrevlog() has been available # since 1.9 (or a79fea6b3e77). revlogopts = getattr( cmdutil, "debugrevlogopts", getattr( commands, "debugrevlogopts", [ (b'c', b'changelog', False, b'open changelog'), (b'm', b'manifest', False, b'open manifest'), (b'', b'dir', False, b'open directory manifest'), ], ), ) cmdtable = {} # for "historical portability": # define parsealiases locally, because cmdutil.parsealiases has been # available since 1.5 (or 6252852b4332) def parsealiases(cmd): return cmd.split(b"|") if safehasattr(registrar, 'command'): command = registrar.command(cmdtable) elif safehasattr(cmdutil, 'command'): command = cmdutil.command(cmdtable) if 'norepo' not in getargspec(command).args: # for "historical portability": # wrap original cmdutil.command, because "norepo" option has # been available since 3.1 (or 75a96326cecb) _command = command def command(name, options=(), synopsis=None, norepo=False): if norepo: commands.norepo += b' %s' % b' '.join(parsealiases(name)) return _command(name, list(options), synopsis) else: # for "historical portability": # define "@command" annotation locally, because cmdutil.command # has been available since 1.9 (or 2daa5179e73f) def command(name, options=(), synopsis=None, norepo=False): def decorator(func): if synopsis: cmdtable[name] = func, list(options), synopsis else: cmdtable[name] = func, list(options) if norepo: commands.norepo += b' %s' % b' '.join(parsealiases(name)) return func return decorator try: import mercurial.registrar import mercurial.configitems configtable = {} configitem = mercurial.registrar.configitem(configtable) configitem( b'perf', b'presleep', default=mercurial.configitems.dynamicdefault, experimental=True, ) configitem( b'perf', b'stub', default=mercurial.configitems.dynamicdefault, experimental=True, ) configitem( b'perf', b'parentscount', default=mercurial.configitems.dynamicdefault, experimental=True, ) configitem( b'perf', b'all-timing', default=mercurial.configitems.dynamicdefault, experimental=True, ) configitem( b'perf', b'pre-run', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'profile-benchmark', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'profiled-runs', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'run-limits', default=mercurial.configitems.dynamicdefault, experimental=True, ) except (ImportError, AttributeError): pass except TypeError: # compatibility fix for a11fd395e83f # hg version: 5.2 configitem( b'perf', b'presleep', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'stub', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'parentscount', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'all-timing', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'pre-run', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'profiled-runs', default=mercurial.configitems.dynamicdefault, ) configitem( b'perf', b'run-limits', default=mercurial.configitems.dynamicdefault, ) def getlen(ui): if ui.configbool(b"perf", b"stub", False): return lambda x: 1 return len class noop: """dummy context manager""" def __enter__(self): pass def __exit__(self, *args): pass NOOPCTX = noop() def gettimer(ui, opts=None): """return a timer function and formatter: (timer, formatter) This function exists to gather the creation of formatter in a single place instead of duplicating it in all performance commands.""" # enforce an idle period before execution to counteract power management # experimental config: perf.presleep time.sleep(getint(ui, b"perf", b"presleep", 1)) if opts is None: opts = {} # redirect all to stderr unless buffer api is in use if not ui._buffers: ui = ui.copy() uifout = safeattrsetter(ui, b'fout', ignoremissing=True) if uifout: # for "historical portability": # ui.fout/ferr have been available since 1.9 (or 4e1ccd4c2b6d) uifout.set(ui.ferr) # get a formatter uiformatter = getattr(ui, 'formatter', None) if uiformatter: fm = uiformatter(b'perf', opts) else: # for "historical portability": # define formatter locally, because ui.formatter has been # available since 2.2 (or ae5f92e154d3) from mercurial import node class defaultformatter: """Minimized composition of baseformatter and plainformatter""" def __init__(self, ui, topic, opts): self._ui = ui if ui.debugflag: self.hexfunc = node.hex else: self.hexfunc = node.short def __nonzero__(self): return False __bool__ = __nonzero__ def startitem(self): pass def data(self, **data): pass def write(self, fields, deftext, *fielddata, **opts): self._ui.write(deftext % fielddata, **opts) def condwrite(self, cond, fields, deftext, *fielddata, **opts): if cond: self._ui.write(deftext % fielddata, **opts) def plain(self, text, **opts): self._ui.write(text, **opts) def end(self): pass fm = defaultformatter(ui, b'perf', opts) # stub function, runs code only once instead of in a loop # experimental config: perf.stub if ui.configbool(b"perf", b"stub", False): return functools.partial(stub_timer, fm), fm # experimental config: perf.all-timing displayall = ui.configbool(b"perf", b"all-timing", True) # experimental config: perf.run-limits limitspec = ui.configlist(b"perf", b"run-limits", []) limits = [] for item in limitspec: parts = item.split(b'-', 1) if len(parts) < 2: ui.warn((b'malformatted run limit entry, missing "-": %s\n' % item)) continue try: time_limit = float(_sysstr(parts[0])) except ValueError as e: ui.warn( ( b'malformatted run limit entry, %s: %s\n' % (_bytestr(e), item) ) ) continue try: run_limit = int(_sysstr(parts[1])) except ValueError as e: ui.warn( ( b'malformatted run limit entry, %s: %s\n' % (_bytestr(e), item) ) ) continue limits.append((time_limit, run_limit)) if not limits: limits = DEFAULTLIMITS profiler = None profiled_runs = set() if profiling is not None: if ui.configbool(b"perf", b"profile-benchmark", False): profiler = lambda: profiling.profile(ui) for run in ui.configlist(b"perf", b"profiled-runs", [0]): profiled_runs.add(int(run)) prerun = getint(ui, b"perf", b"pre-run", 0) t = functools.partial( _timer, fm, displayall=displayall, limits=limits, prerun=prerun, profiler=profiler, profiled_runs=profiled_runs, ) return t, fm def stub_timer(fm, func, setup=None, title=None): if setup is not None: setup() func() @contextlib.contextmanager def timeone(): r = [] ostart = os.times() cstart = util.timer() yield r cstop = util.timer() ostop = os.times() a, b = ostart, ostop r.append((cstop - cstart, b[0] - a[0], b[1] - a[1])) # list of stop condition (elapsed time, minimal run count) DEFAULTLIMITS = ( (3.0, 100), (10.0, 3), ) @contextlib.contextmanager def noop_context(): yield def _timer( fm, func, setup=None, context=noop_context, title=None, displayall=False, limits=DEFAULTLIMITS, prerun=0, profiler=None, profiled_runs=(0,), ): gc.collect() results = [] count = 0 if profiler is None: profiler = lambda: NOOPCTX for i in range(prerun): if setup is not None: setup() with context(): func() begin = util.timer() keepgoing = True while keepgoing: if count in profiled_runs: prof = profiler() else: prof = NOOPCTX if setup is not None: setup() with context(): gc.collect() with prof: with timeone() as item: r = func() count += 1 results.append(item[0]) cstop = util.timer() # Look for a stop condition. elapsed = cstop - begin for t, mincount in limits: if elapsed >= t and count >= mincount: keepgoing = False break formatone(fm, results, title=title, result=r, displayall=displayall) def formatone(fm, timings, title=None, result=None, displayall=False): count = len(timings) fm.startitem() if title: fm.write(b'title', b'! %s\n', title) if result: fm.write(b'result', b'! result: %s\n', result) def display(role, entry): prefix = b'' if role != b'best': prefix = b'%s.' % role fm.plain(b'!') fm.write(prefix + b'wall', b' wall %f', entry[0]) fm.write(prefix + b'comb', b' comb %f', entry[1] + entry[2]) fm.write(prefix + b'user', b' user %f', entry[1]) fm.write(prefix + b'sys', b' sys %f', entry[2]) fm.write(prefix + b'count', b' (%s of %%d)' % role, count) fm.plain(b'\n') timings.sort() min_val = timings[0] display(b'best', min_val) if displayall: max_val = timings[-1] display(b'max', max_val) avg = tuple([sum(x) / count for x in zip(*timings)]) display(b'avg', avg) median = timings[len(timings) // 2] display(b'median', median) # utilities for historical portability def getint(ui, section, name, default): # for "historical portability": # ui.configint has been available since 1.9 (or fa2b596db182) v = ui.config(section, name, None) if v is None: return default try: return int(v) except ValueError: raise error.ConfigError( b"%s.%s is not an integer ('%s')" % (section, name, v) ) def safeattrsetter(obj, name, ignoremissing=False): """Ensure that 'obj' has 'name' attribute before subsequent setattr This function is aborted, if 'obj' doesn't have 'name' attribute at runtime. This avoids overlooking removal of an attribute, which breaks assumption of performance measurement, in the future. This function returns the object to (1) assign a new value, and (2) restore an original value to the attribute. If 'ignoremissing' is true, missing 'name' attribute doesn't cause abortion, and this function returns None. This is useful to examine an attribute, which isn't ensured in all Mercurial versions. """ if not util.safehasattr(obj, name): if ignoremissing: return None raise error.Abort( ( b"missing attribute %s of %s might break assumption" b" of performance measurement" ) % (name, obj) ) origvalue = getattr(obj, _sysstr(name)) class attrutil: def set(self, newvalue): setattr(obj, _sysstr(name), newvalue) def restore(self): setattr(obj, _sysstr(name), origvalue) return attrutil() # utilities to examine each internal API changes def getbranchmapsubsettable(): # for "historical portability": # subsettable is defined in: # - branchmap since 2.9 (or 175c6fd8cacc) # - repoview since 2.5 (or 59a9f18d4587) # - repoviewutil since 5.0 for mod in (branchmap, repoview, repoviewutil): subsettable = getattr(mod, 'subsettable', None) if subsettable: return subsettable # bisecting in bcee63733aad::59a9f18d4587 can reach here (both # branchmap and repoview modules exist, but subsettable attribute # doesn't) raise error.Abort( b"perfbranchmap not available with this Mercurial", hint=b"use 2.5 or later", ) def getsvfs(repo): """Return appropriate object to access files under .hg/store""" # for "historical portability": # repo.svfs has been available since 2.3 (or 7034365089bf) svfs = getattr(repo, 'svfs', None) if svfs: return svfs else: return getattr(repo, 'sopener') def getvfs(repo): """Return appropriate object to access files under .hg""" # for "historical portability": # repo.vfs has been available since 2.3 (or 7034365089bf) vfs = getattr(repo, 'vfs', None) if vfs: return vfs else: return getattr(repo, 'opener') def repocleartagscachefunc(repo): """Return the function to clear tags cache according to repo internal API""" if util.safehasattr(repo, b'_tagscache'): # since 2.0 (or 9dca7653b525) # in this case, setattr(repo, '_tagscache', None) or so isn't # correct way to clear tags cache, because existing code paths # expect _tagscache to be a structured object. def clearcache(): # _tagscache has been filteredpropertycache since 2.5 (or # 98c867ac1330), and delattr() can't work in such case if '_tagscache' in vars(repo): del repo.__dict__['_tagscache'] return clearcache repotags = safeattrsetter(repo, b'_tags', ignoremissing=True) if repotags: # since 1.4 (or 5614a628d173) return lambda: repotags.set(None) repotagscache = safeattrsetter(repo, b'tagscache', ignoremissing=True) if repotagscache: # since 0.6 (or d7df759d0e97) return lambda: repotagscache.set(None) # Mercurial earlier than 0.6 (or d7df759d0e97) logically reaches # this point, but it isn't so problematic, because: # - repo.tags of such Mercurial isn't "callable", and repo.tags() # in perftags() causes failure soon # - perf.py itself has been available since 1.1 (or eb240755386d) raise error.Abort(b"tags API of this hg command is unknown") # utilities to clear cache def clearfilecache(obj, attrname): unfiltered = getattr(obj, 'unfiltered', None) if unfiltered is not None: obj = obj.unfiltered() if attrname in vars(obj): delattr(obj, attrname) obj._filecache.pop(attrname, None) def clearchangelog(repo): if repo is not repo.unfiltered(): object.__setattr__(repo, '_clcachekey', None) object.__setattr__(repo, '_clcache', None) clearfilecache(repo.unfiltered(), 'changelog') # perf commands @command(b'perf::walk|perfwalk', formatteropts) def perfwalk(ui, repo, *pats, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) m = scmutil.match(repo[None], pats, {}) timer( lambda: len( list( repo.dirstate.walk(m, subrepos=[], unknown=True, ignored=False) ) ) ) fm.end() @command(b'perf::annotate|perfannotate', formatteropts) def perfannotate(ui, repo, f, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) fc = repo[b'.'][f] timer(lambda: len(fc.annotate(True))) fm.end() @command( b'perf::status|perfstatus', [ (b'u', b'unknown', False, b'ask status to look for unknown files'), (b'', b'dirstate', False, b'benchmark the internal dirstate call'), ] + formatteropts, ) def perfstatus(ui, repo, **opts): """benchmark the performance of a single status call The repository data are preserved between each call. By default, only the status of the tracked file are requested. If `--unknown` is passed, the "unknown" files are also tracked. """ opts = _byteskwargs(opts) # m = match.always(repo.root, repo.getcwd()) # timer(lambda: sum(map(len, repo.dirstate.status(m, [], False, False, # False)))) timer, fm = gettimer(ui, opts) if opts[b'dirstate']: dirstate = repo.dirstate m = scmutil.matchall(repo) unknown = opts[b'unknown'] def status_dirstate(): s = dirstate.status( m, subrepos=[], ignored=False, clean=False, unknown=unknown ) sum(map(bool, s)) if util.safehasattr(dirstate, 'running_status'): with dirstate.running_status(repo): timer(status_dirstate) dirstate.invalidate() else: timer(status_dirstate) else: timer(lambda: sum(map(len, repo.status(unknown=opts[b'unknown'])))) fm.end() @command(b'perf::addremove|perfaddremove', formatteropts) def perfaddremove(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) try: oldquiet = repo.ui.quiet repo.ui.quiet = True matcher = scmutil.match(repo[None]) opts[b'dry_run'] = True if 'uipathfn' in getargspec(scmutil.addremove).args: uipathfn = scmutil.getuipathfn(repo) timer(lambda: scmutil.addremove(repo, matcher, b"", uipathfn, opts)) else: timer(lambda: scmutil.addremove(repo, matcher, b"", opts)) finally: repo.ui.quiet = oldquiet fm.end() def clearcaches(cl): # behave somewhat consistently across internal API changes if util.safehasattr(cl, b'clearcaches'): cl.clearcaches() elif util.safehasattr(cl, b'_nodecache'): # <= hg-5.2 from mercurial.node import nullid, nullrev cl._nodecache = {nullid: nullrev} cl._nodepos = None @command(b'perf::heads|perfheads', formatteropts) def perfheads(ui, repo, **opts): """benchmark the computation of a changelog heads""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) cl = repo.changelog def s(): clearcaches(cl) def d(): len(cl.headrevs()) timer(d, setup=s) fm.end() def _default_clear_on_disk_tags_cache(repo): from mercurial import tags repo.cachevfs.tryunlink(tags._filename(repo)) def _default_clear_on_disk_tags_fnodes_cache(repo): from mercurial import tags repo.cachevfs.tryunlink(tags._fnodescachefile) def _default_forget_fnodes(repo, revs): """function used by the perf extension to prune some entries from the fnodes cache""" from mercurial import tags missing_1 = b'\xff' * 4 missing_2 = b'\xff' * 20 cache = tags.hgtagsfnodescache(repo.unfiltered()) for r in revs: cache._writeentry(r * tags._fnodesrecsize, missing_1, missing_2) cache.write() @command( b'perf::tags|perftags', formatteropts + [ (b'', b'clear-revlogs', False, b'refresh changelog and manifest'), ( b'', b'clear-on-disk-cache', False, b'clear on disk tags cache (DESTRUCTIVE)', ), ( b'', b'clear-fnode-cache-all', False, b'clear on disk file node cache (DESTRUCTIVE),', ), ( b'', b'clear-fnode-cache-rev', [], b'clear on disk file node cache (DESTRUCTIVE),', b'REVS', ), ( b'', b'update-last', b'', b'simulate an update over the last N revisions (DESTRUCTIVE),', b'N', ), ], ) def perftags(ui, repo, **opts): """Benchmark tags retrieval in various situation The option marked as (DESTRUCTIVE) will alter the on-disk cache, possibly altering performance after the command was run. However, it does not destroy any stored data. """ from mercurial import tags opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) repocleartagscache = repocleartagscachefunc(repo) clearrevlogs = opts[b'clear_revlogs'] clear_disk = opts[b'clear_on_disk_cache'] clear_fnode = opts[b'clear_fnode_cache_all'] clear_fnode_revs = opts[b'clear_fnode_cache_rev'] update_last_str = opts[b'update_last'] update_last = None if update_last_str: try: update_last = int(update_last_str) except ValueError: msg = b'could not parse value for update-last: "%s"' msg %= update_last_str hint = b'value should be an integer' raise error.Abort(msg, hint=hint) clear_disk_fn = getattr( tags, "clear_cache_on_disk", _default_clear_on_disk_tags_cache, ) if getattr(tags, 'clear_cache_fnodes_is_working', False): clear_fnodes_fn = tags.clear_cache_fnodes else: clear_fnodes_fn = _default_clear_on_disk_tags_fnodes_cache clear_fnodes_rev_fn = getattr( tags, "forget_fnodes", _default_forget_fnodes, ) clear_revs = [] if clear_fnode_revs: clear_revs.extend(scmutil.revrange(repo, clear_fnode_revs)) if update_last: revset = b'last(all(), %d)' % update_last last_revs = repo.unfiltered().revs(revset) clear_revs.extend(last_revs) from mercurial import repoview rev_filter = {(b'experimental', b'extra-filter-revs'): revset} with repo.ui.configoverride(rev_filter, source=b"perf"): filter_id = repoview.extrafilter(repo.ui) filter_name = b'%s%%%s' % (repo.filtername, filter_id) pre_repo = repo.filtered(filter_name) pre_repo.tags() # warm the cache old_tags_path = repo.cachevfs.join(tags._filename(pre_repo)) new_tags_path = repo.cachevfs.join(tags._filename(repo)) clear_revs = sorted(set(clear_revs)) def s(): if update_last: util.copyfile(old_tags_path, new_tags_path) if clearrevlogs: clearchangelog(repo) clearfilecache(repo.unfiltered(), 'manifest') if clear_disk: clear_disk_fn(repo) if clear_fnode: clear_fnodes_fn(repo) elif clear_revs: clear_fnodes_rev_fn(repo, clear_revs) repocleartagscache() def t(): len(repo.tags()) timer(t, setup=s) fm.end() @command(b'perf::ancestors|perfancestors', formatteropts) def perfancestors(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) heads = repo.changelog.headrevs() def d(): for a in repo.changelog.ancestors(heads): pass timer(d) fm.end() @command(b'perf::ancestorset|perfancestorset', formatteropts) def perfancestorset(ui, repo, revset, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) revs = repo.revs(revset) heads = repo.changelog.headrevs() def d(): s = repo.changelog.ancestors(heads) for rev in revs: rev in s timer(d) fm.end() @command( b'perf::delta-find', revlogopts + formatteropts, b'-c|-m|FILE REV', ) def perf_delta_find(ui, repo, arg_1, arg_2=None, **opts): """benchmark the process of finding a valid delta for a revlog revision When a revlog receives a new revision (e.g. from a commit, or from an incoming bundle), it searches for a suitable delta-base to produce a delta. This perf command measures how much time we spend in this process. It operates on an already stored revision. See `hg help debug-delta-find` for another related command. """ from mercurial import revlogutils import mercurial.revlogutils.deltas as deltautil opts = _byteskwargs(opts) if arg_2 is None: file_ = None rev = arg_1 else: file_ = arg_1 rev = arg_2 repo = repo.unfiltered() timer, fm = gettimer(ui, opts) rev = int(rev) revlog = cmdutil.openrevlog(repo, b'perf::delta-find', file_, opts) deltacomputer = deltautil.deltacomputer(revlog) node = revlog.node(rev) p1r, p2r = revlog.parentrevs(rev) p1 = revlog.node(p1r) p2 = revlog.node(p2r) full_text = revlog.revision(rev) textlen = len(full_text) cachedelta = None flags = revlog.flags(rev) revinfo = revlogutils.revisioninfo( node, p1, p2, [full_text], # btext textlen, cachedelta, flags, ) # Note: we should probably purge the potential caches (like the full # manifest cache) between runs. def find_one(): with revlog._datafp() as fh: deltacomputer.finddeltainfo(revinfo, fh, target_rev=rev) timer(find_one) fm.end() @command(b'perf::discovery|perfdiscovery', formatteropts, b'PATH') def perfdiscovery(ui, repo, path, **opts): """benchmark discovery between local repo and the peer at given path""" repos = [repo, None] timer, fm = gettimer(ui, opts) try: from mercurial.utils.urlutil import get_unique_pull_path_obj path = get_unique_pull_path_obj(b'perfdiscovery', ui, path) except ImportError: try: from mercurial.utils.urlutil import get_unique_pull_path path = get_unique_pull_path(b'perfdiscovery', repo, ui, path)[0] except ImportError: path = ui.expandpath(path) def s(): repos[1] = hg.peer(ui, opts, path) def d(): setdiscovery.findcommonheads(ui, *repos) timer(d, setup=s) fm.end() @command( b'perf::bookmarks|perfbookmarks', formatteropts + [ (b'', b'clear-revlogs', False, b'refresh changelog and manifest'), ], ) def perfbookmarks(ui, repo, **opts): """benchmark parsing bookmarks from disk to memory""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) clearrevlogs = opts[b'clear_revlogs'] def s(): if clearrevlogs: clearchangelog(repo) clearfilecache(repo, b'_bookmarks') def d(): repo._bookmarks timer(d, setup=s) fm.end() @command( b'perf::bundle', [ ( b'r', b'rev', [], b'changesets to bundle', b'REV', ), ( b't', b'type', b'none', b'bundlespec to use (see `hg help bundlespec`)', b'TYPE', ), ] + formatteropts, b'REVS', ) def perfbundle(ui, repo, *revs, **opts): """benchmark the creation of a bundle from a repository For now, this only supports "none" compression. """ try: from mercurial import bundlecaches parsebundlespec = bundlecaches.parsebundlespec except ImportError: from mercurial import exchange parsebundlespec = exchange.parsebundlespec from mercurial import discovery from mercurial import bundle2 opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) cl = repo.changelog revs = list(revs) revs.extend(opts.get(b'rev', ())) revs = scmutil.revrange(repo, revs) if not revs: raise error.Abort(b"not revision specified") # make it a consistent set (ie: without topological gaps) old_len = len(revs) revs = list(repo.revs(b"%ld::%ld", revs, revs)) if old_len != len(revs): new_count = len(revs) - old_len msg = b"add %d new revisions to make it a consistent set\n" ui.write_err(msg % new_count) targets = [cl.node(r) for r in repo.revs(b"heads(::%ld)", revs)] bases = [cl.node(r) for r in repo.revs(b"heads(::%ld - %ld)", revs, revs)] outgoing = discovery.outgoing(repo, bases, targets) bundle_spec = opts.get(b'type') bundle_spec = parsebundlespec(repo, bundle_spec, strict=False) cgversion = bundle_spec.params.get(b"cg.version") if cgversion is None: if bundle_spec.version == b'v1': cgversion = b'01' if bundle_spec.version == b'v2': cgversion = b'02' if cgversion not in changegroup.supportedoutgoingversions(repo): err = b"repository does not support bundle version %s" raise error.Abort(err % cgversion) if cgversion == b'01': # bundle1 bversion = b'HG10' + bundle_spec.wirecompression bcompression = None elif cgversion in (b'02', b'03'): bversion = b'HG20' bcompression = bundle_spec.wirecompression else: err = b'perf::bundle: unexpected changegroup version %s' raise error.ProgrammingError(err % cgversion) if bcompression is None: bcompression = b'UN' if bcompression != b'UN': err = b'perf::bundle: compression currently unsupported: %s' raise error.ProgrammingError(err % bcompression) def do_bundle(): bundle2.writenewbundle( ui, repo, b'perf::bundle', os.devnull, bversion, outgoing, bundle_spec.params, ) timer(do_bundle) fm.end() @command(b'perf::bundleread|perfbundleread', formatteropts, b'BUNDLE') def perfbundleread(ui, repo, bundlepath, **opts): """Benchmark reading of bundle files. This command is meant to isolate the I/O part of bundle reading as much as possible. """ from mercurial import ( bundle2, exchange, streamclone, ) opts = _byteskwargs(opts) def makebench(fn): def run(): with open(bundlepath, b'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) fn(bundle) return run def makereadnbytes(size): def run(): with open(bundlepath, b'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) while bundle.read(size): pass return run def makestdioread(size): def run(): with open(bundlepath, b'rb') as fh: while fh.read(size): pass return run # bundle1 def deltaiter(bundle): for delta in bundle.deltaiter(): pass def iterchunks(bundle): for chunk in bundle.getchunks(): pass # bundle2 def forwardchunks(bundle): for chunk in bundle._forwardchunks(): pass def iterparts(bundle): for part in bundle.iterparts(): pass def iterpartsseekable(bundle): for part in bundle.iterparts(seekable=True): pass def seek(bundle): for part in bundle.iterparts(seekable=True): part.seek(0, os.SEEK_END) def makepartreadnbytes(size): def run(): with open(bundlepath, b'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) for part in bundle.iterparts(): while part.read(size): pass return run benches = [ (makestdioread(8192), b'read(8k)'), (makestdioread(16384), b'read(16k)'), (makestdioread(32768), b'read(32k)'), (makestdioread(131072), b'read(128k)'), ] with open(bundlepath, b'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) if isinstance(bundle, changegroup.cg1unpacker): benches.extend( [ (makebench(deltaiter), b'cg1 deltaiter()'), (makebench(iterchunks), b'cg1 getchunks()'), (makereadnbytes(8192), b'cg1 read(8k)'), (makereadnbytes(16384), b'cg1 read(16k)'), (makereadnbytes(32768), b'cg1 read(32k)'), (makereadnbytes(131072), b'cg1 read(128k)'), ] ) elif isinstance(bundle, bundle2.unbundle20): benches.extend( [ (makebench(forwardchunks), b'bundle2 forwardchunks()'), (makebench(iterparts), b'bundle2 iterparts()'), ( makebench(iterpartsseekable), b'bundle2 iterparts() seekable', ), (makebench(seek), b'bundle2 part seek()'), (makepartreadnbytes(8192), b'bundle2 part read(8k)'), (makepartreadnbytes(16384), b'bundle2 part read(16k)'), (makepartreadnbytes(32768), b'bundle2 part read(32k)'), (makepartreadnbytes(131072), b'bundle2 part read(128k)'), ] ) elif isinstance(bundle, streamclone.streamcloneapplier): raise error.Abort(b'stream clone bundles not supported') else: raise error.Abort(b'unhandled bundle type: %s' % type(bundle)) for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command( b'perf::changegroupchangelog|perfchangegroupchangelog', formatteropts + [ (b'', b'cgversion', b'02', b'changegroup version'), (b'r', b'rev', b'', b'revisions to add to changegroup'), ], ) def perfchangegroupchangelog(ui, repo, cgversion=b'02', rev=None, **opts): """Benchmark producing a changelog group for a changegroup. This measures the time spent processing the changelog during a bundle operation. This occurs during `hg bundle` and on a server processing a `getbundle` wire protocol request (handles clones and pull requests). By default, all revisions are added to the changegroup. """ opts = _byteskwargs(opts) cl = repo.changelog nodes = [cl.lookup(r) for r in repo.revs(rev or b'all()')] bundler = changegroup.getbundler(cgversion, repo) def d(): state, chunks = bundler._generatechangelog(cl, nodes) for chunk in chunks: pass timer, fm = gettimer(ui, opts) # Terminal printing can interfere with timing. So disable it. with ui.configoverride({(b'progress', b'disable'): True}): timer(d) fm.end() @command(b'perf::dirs|perfdirs', formatteropts) def perfdirs(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) dirstate = repo.dirstate b'a' in dirstate def d(): dirstate.hasdir(b'a') try: del dirstate._map._dirs except AttributeError: pass timer(d) fm.end() @command( b'perf::dirstate|perfdirstate', [ ( b'', b'iteration', None, b'benchmark a full iteration for the dirstate', ), ( b'', b'contains', None, b'benchmark a large amount of `nf in dirstate` calls', ), ] + formatteropts, ) def perfdirstate(ui, repo, **opts): """benchmap the time of various distate operations By default benchmark the time necessary to load a dirstate from scratch. The dirstate is loaded to the point were a "contains" request can be answered. """ opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) b"a" in repo.dirstate if opts[b'iteration'] and opts[b'contains']: msg = b'only specify one of --iteration or --contains' raise error.Abort(msg) if opts[b'iteration']: setup = None dirstate = repo.dirstate def d(): for f in dirstate: pass elif opts[b'contains']: setup = None dirstate = repo.dirstate allfiles = list(dirstate) # also add file path that will be "missing" from the dirstate allfiles.extend([f[::-1] for f in allfiles]) def d(): for f in allfiles: f in dirstate else: def setup(): repo.dirstate.invalidate() def d(): b"a" in repo.dirstate timer(d, setup=setup) fm.end() @command(b'perf::dirstatedirs|perfdirstatedirs', formatteropts) def perfdirstatedirs(ui, repo, **opts): """benchmap a 'dirstate.hasdir' call from an empty `dirs` cache""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) repo.dirstate.hasdir(b"a") def setup(): try: del repo.dirstate._map._dirs except AttributeError: pass def d(): repo.dirstate.hasdir(b"a") timer(d, setup=setup) fm.end() @command(b'perf::dirstatefoldmap|perfdirstatefoldmap', formatteropts) def perfdirstatefoldmap(ui, repo, **opts): """benchmap a `dirstate._map.filefoldmap.get()` request The dirstate filefoldmap cache is dropped between every request. """ opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) dirstate = repo.dirstate dirstate._map.filefoldmap.get(b'a') def setup(): del dirstate._map.filefoldmap def d(): dirstate._map.filefoldmap.get(b'a') timer(d, setup=setup) fm.end() @command(b'perf::dirfoldmap|perfdirfoldmap', formatteropts) def perfdirfoldmap(ui, repo, **opts): """benchmap a `dirstate._map.dirfoldmap.get()` request The dirstate dirfoldmap cache is dropped between every request. """ opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) dirstate = repo.dirstate dirstate._map.dirfoldmap.get(b'a') def setup(): del dirstate._map.dirfoldmap try: del dirstate._map._dirs except AttributeError: pass def d(): dirstate._map.dirfoldmap.get(b'a') timer(d, setup=setup) fm.end() @command(b'perf::dirstatewrite|perfdirstatewrite', formatteropts) def perfdirstatewrite(ui, repo, **opts): """benchmap the time it take to write a dirstate on disk""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) ds = repo.dirstate b"a" in ds def setup(): ds._dirty = True def d(): ds.write(repo.currenttransaction()) with repo.wlock(): timer(d, setup=setup) fm.end() def _getmergerevs(repo, opts): """parse command argument to return rev involved in merge input: options dictionnary with `rev`, `from` and `bse` output: (localctx, otherctx, basectx) """ if opts[b'from']: fromrev = scmutil.revsingle(repo, opts[b'from']) wctx = repo[fromrev] else: wctx = repo[None] # we don't want working dir files to be stat'd in the benchmark, so # prime that cache wctx.dirty() rctx = scmutil.revsingle(repo, opts[b'rev'], opts[b'rev']) if opts[b'base']: fromrev = scmutil.revsingle(repo, opts[b'base']) ancestor = repo[fromrev] else: ancestor = wctx.ancestor(rctx) return (wctx, rctx, ancestor) @command( b'perf::mergecalculate|perfmergecalculate', [ (b'r', b'rev', b'.', b'rev to merge against'), (b'', b'from', b'', b'rev to merge from'), (b'', b'base', b'', b'the revision to use as base'), ] + formatteropts, ) def perfmergecalculate(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) wctx, rctx, ancestor = _getmergerevs(repo, opts) def d(): # acceptremote is True because we don't want prompts in the middle of # our benchmark merge.calculateupdates( repo, wctx, rctx, [ancestor], branchmerge=False, force=False, acceptremote=True, followcopies=True, ) timer(d) fm.end() @command( b'perf::mergecopies|perfmergecopies', [ (b'r', b'rev', b'.', b'rev to merge against'), (b'', b'from', b'', b'rev to merge from'), (b'', b'base', b'', b'the revision to use as base'), ] + formatteropts, ) def perfmergecopies(ui, repo, **opts): """measure runtime of `copies.mergecopies`""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) wctx, rctx, ancestor = _getmergerevs(repo, opts) def d(): # acceptremote is True because we don't want prompts in the middle of # our benchmark copies.mergecopies(repo, wctx, rctx, ancestor) timer(d) fm.end() @command(b'perf::pathcopies|perfpathcopies', [], b"REV REV") def perfpathcopies(ui, repo, rev1, rev2, **opts): """benchmark the copy tracing logic""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) ctx1 = scmutil.revsingle(repo, rev1, rev1) ctx2 = scmutil.revsingle(repo, rev2, rev2) def d(): copies.pathcopies(ctx1, ctx2) timer(d) fm.end() @command( b'perf::phases|perfphases', [ (b'', b'full', False, b'include file reading time too'), ] + formatteropts, b"", ) def perfphases(ui, repo, **opts): """benchmark phasesets computation""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) _phases = repo._phasecache full = opts.get(b'full') tip_rev = repo.changelog.tiprev() def d(): phases = _phases if full: clearfilecache(repo, b'_phasecache') phases = repo._phasecache phases.invalidate() phases.phase(repo, tip_rev) timer(d) fm.end() @command(b'perf::phasesremote|perfphasesremote', [], b"[DEST]") def perfphasesremote(ui, repo, dest=None, **opts): """benchmark time needed to analyse phases of the remote server""" from mercurial.node import bin from mercurial import ( exchange, hg, phases, ) opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) path = ui.getpath(dest, default=(b'default-push', b'default')) if not path: raise error.Abort( b'default repository not configured!', hint=b"see 'hg help config.paths'", ) if util.safehasattr(path, 'main_path'): path = path.get_push_variant() dest = path.loc else: dest = path.pushloc or path.loc ui.statusnoi18n(b'analysing phase of %s\n' % util.hidepassword(dest)) other = hg.peer(repo, opts, dest) # easier to perform discovery through the operation op = exchange.pushoperation(repo, other) exchange._pushdiscoverychangeset(op) remotesubset = op.fallbackheads with other.commandexecutor() as e: remotephases = e.callcommand( b'listkeys', {b'namespace': b'phases'} ).result() del other publishing = remotephases.get(b'publishing', False) if publishing: ui.statusnoi18n(b'publishing: yes\n') else: ui.statusnoi18n(b'publishing: no\n') has_node = getattr(repo.changelog.index, 'has_node', None) if has_node is None: has_node = repo.changelog.nodemap.__contains__ nonpublishroots = 0 for nhex, phase in remotephases.iteritems(): if nhex == b'publishing': # ignore data related to publish option continue node = bin(nhex) if has_node(node) and int(phase): nonpublishroots += 1 ui.statusnoi18n(b'number of roots: %d\n' % len(remotephases)) ui.statusnoi18n(b'number of known non public roots: %d\n' % nonpublishroots) def d(): phases.remotephasessummary(repo, remotesubset, remotephases) timer(d) fm.end() @command( b'perf::manifest|perfmanifest', [ (b'm', b'manifest-rev', False, b'Look up a manifest node revision'), (b'', b'clear-disk', False, b'clear on-disk caches too'), ] + formatteropts, b'REV|NODE', ) def perfmanifest(ui, repo, rev, manifest_rev=False, clear_disk=False, **opts): """benchmark the time to read a manifest from disk and return a usable dict-like object Manifest caches are cleared before retrieval.""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) if not manifest_rev: ctx = scmutil.revsingle(repo, rev, rev) t = ctx.manifestnode() else: from mercurial.node import bin if len(rev) == 40: t = bin(rev) else: try: rev = int(rev) if util.safehasattr(repo.manifestlog, b'getstorage'): t = repo.manifestlog.getstorage(b'').node(rev) else: t = repo.manifestlog._revlog.lookup(rev) except ValueError: raise error.Abort( b'manifest revision must be integer or full node' ) def d(): repo.manifestlog.clearcaches(clear_persisted_data=clear_disk) repo.manifestlog[t].read() timer(d) fm.end() @command(b'perf::changeset|perfchangeset', formatteropts) def perfchangeset(ui, repo, rev, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) n = scmutil.revsingle(repo, rev).node() def d(): repo.changelog.read(n) # repo.changelog._cache = None timer(d) fm.end() @command(b'perf::ignore|perfignore', formatteropts) def perfignore(ui, repo, **opts): """benchmark operation related to computing ignore""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) dirstate = repo.dirstate def setupone(): dirstate.invalidate() clearfilecache(dirstate, b'_ignore') def runone(): dirstate._ignore timer(runone, setup=setupone, title=b"load") fm.end() @command( b'perf::index|perfindex', [ (b'', b'rev', [], b'revision to be looked up (default tip)'), (b'', b'no-lookup', None, b'do not revision lookup post creation'), ] + formatteropts, ) def perfindex(ui, repo, **opts): """benchmark index creation time followed by a lookup The default is to look `tip` up. Depending on the index implementation, the revision looked up can matters. For example, an implementation scanning the index will have a faster lookup time for `--rev tip` than for `--rev 0`. The number of looked up revisions and their order can also matters. Example of useful set to test: * tip * 0 * -10: * :10 * -10: + :10 * :10: + -10: * -10000: * -10000: + 0 It is not currently possible to check for lookup of a missing node. For deeper lookup benchmarking, checkout the `perfnodemap` command.""" import mercurial.revlog opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg if opts[b'no_lookup']: if opts['rev']: raise error.Abort('--no-lookup and --rev are mutually exclusive') nodes = [] elif not opts[b'rev']: nodes = [repo[b"tip"].node()] else: revs = scmutil.revrange(repo, opts[b'rev']) cl = repo.changelog nodes = [cl.node(r) for r in revs] unfi = repo.unfiltered() # find the filecache func directly # This avoid polluting the benchmark with the filecache logic makecl = unfi.__class__.changelog.func def setup(): # probably not necessary, but for good measure clearchangelog(unfi) def d(): cl = makecl(unfi) for n in nodes: cl.rev(n) timer(d, setup=setup) fm.end() @command( b'perf::nodemap|perfnodemap', [ (b'', b'rev', [], b'revision to be looked up (default tip)'), (b'', b'clear-caches', True, b'clear revlog cache between calls'), ] + formatteropts, ) def perfnodemap(ui, repo, **opts): """benchmark the time necessary to look up revision from a cold nodemap Depending on the implementation, the amount and order of revision we look up can varies. Example of useful set to test: * tip * 0 * -10: * :10 * -10: + :10 * :10: + -10: * -10000: * -10000: + 0 The command currently focus on valid binary lookup. Benchmarking for hexlookup, prefix lookup and missing lookup would also be valuable. """ import mercurial.revlog opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg unfi = repo.unfiltered() clearcaches = opts[b'clear_caches'] # find the filecache func directly # This avoid polluting the benchmark with the filecache logic makecl = unfi.__class__.changelog.func if not opts[b'rev']: raise error.Abort(b'use --rev to specify revisions to look up') revs = scmutil.revrange(repo, opts[b'rev']) cl = repo.changelog nodes = [cl.node(r) for r in revs] # use a list to pass reference to a nodemap from one closure to the next nodeget = [None] def setnodeget(): # probably not necessary, but for good measure clearchangelog(unfi) cl = makecl(unfi) if util.safehasattr(cl.index, 'get_rev'): nodeget[0] = cl.index.get_rev else: nodeget[0] = cl.nodemap.get def d(): get = nodeget[0] for n in nodes: get(n) setup = None if clearcaches: def setup(): setnodeget() else: setnodeget() d() # prewarm the data structure timer(d, setup=setup) fm.end() @command(b'perf::startup|perfstartup', formatteropts) def perfstartup(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) def d(): if os.name != 'nt': os.system( b"HGRCPATH= %s version -q > /dev/null" % fsencode(sys.argv[0]) ) else: os.environ['HGRCPATH'] = r' ' os.system("%s version -q > NUL" % sys.argv[0]) timer(d) fm.end() def _clear_store_audit_cache(repo): vfs = getsvfs(repo) # unwrap the fncache proxy if not hasattr(vfs, "audit"): vfs = getattr(vfs, "vfs", vfs) auditor = vfs.audit if hasattr(auditor, "clear_audit_cache"): auditor.clear_audit_cache() elif hasattr(auditor, "audited"): auditor.audited.clear() auditor.auditeddir.clear() def _find_stream_generator(version): """find the proper generator function for this stream version""" import mercurial.streamclone available = {} # try to fetch a v1 generator generatev1 = getattr(mercurial.streamclone, "generatev1", None) if generatev1 is not None: def generate(repo): entries, bytes, data = generatev1(repo, None, None, True) return data available[b'v1'] = generatev1 # try to fetch a v2 generator generatev2 = getattr(mercurial.streamclone, "generatev2", None) if generatev2 is not None: def generate(repo): entries, bytes, data = generatev2(repo, None, None, True) return data available[b'v2'] = generate # try to fetch a v3 generator generatev3 = getattr(mercurial.streamclone, "generatev3", None) if generatev3 is not None: def generate(repo): return generatev3(repo, None, None, True) available[b'v3-exp'] = generate # resolve the request if version == b"latest": # latest is the highest non experimental version latest_key = max(v for v in available if b'-exp' not in v) return available[latest_key] elif version in available: return available[version] else: msg = b"unkown or unavailable version: %s" msg %= version hint = b"available versions: %s" hint %= b', '.join(sorted(available)) raise error.Abort(msg, hint=hint) @command( b'perf::stream-locked-section', [ ( b'', b'stream-version', b'latest', b'stream version to use ("v1", "v2", "v3-exp" ' b'or "latest", (the default))', ), ] + formatteropts, ) def perf_stream_clone_scan(ui, repo, stream_version, **opts): """benchmark the initial, repo-locked, section of a stream-clone""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) # deletion of the generator may trigger some cleanup that we do not want to # measure result_holder = [None] def setupone(): result_holder[0] = None # This is important for the full generation, even if it does not # currently matters, it seems safer to also real it here. _clear_store_audit_cache(repo) generate = _find_stream_generator(stream_version) def runone(): # the lock is held for the duration the initialisation result_holder[0] = generate(repo) timer(runone, setup=setupone, title=b"load") fm.end() @command( b'perf::stream-generate', [ ( b'', b'stream-version', b'latest', b'stream version to us ("v1", "v2", "v3-exp" ' b'or "latest", (the default))', ), ] + formatteropts, ) def perf_stream_clone_generate(ui, repo, stream_version, **opts): """benchmark the full generation of a stream clone""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) # deletion of the generator may trigger some cleanup that we do not want to # measure generate = _find_stream_generator(stream_version) def setup(): _clear_store_audit_cache(repo) def runone(): # the lock is held for the duration the initialisation for chunk in generate(repo): pass timer(runone, setup=setup, title=b"generate") fm.end() @command( b'perf::stream-consume', formatteropts, ) def perf_stream_clone_consume(ui, repo, filename, **opts): """benchmark the full application of a stream clone This include the creation of the repository """ # try except to appease check code msg = b"mercurial too old, missing necessary module: %s" try: from mercurial import bundle2 except ImportError as exc: msg %= _bytestr(exc) raise error.Abort(msg) try: from mercurial import exchange except ImportError as exc: msg %= _bytestr(exc) raise error.Abort(msg) try: from mercurial import hg except ImportError as exc: msg %= _bytestr(exc) raise error.Abort(msg) try: from mercurial import localrepo except ImportError as exc: msg %= _bytestr(exc) raise error.Abort(msg) opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) # deletion of the generator may trigger some cleanup that we do not want to # measure if not (os.path.isfile(filename) and os.access(filename, os.R_OK)): raise error.Abort("not a readable file: %s" % filename) run_variables = [None, None] # we create the new repository next to the other one for two reasons: # - this way we use the same file system, which are relevant for benchmark # - if /tmp/ is small, the operation could overfills it. source_repo_dir = os.path.dirname(repo.root) @contextlib.contextmanager def context(): with open(filename, mode='rb') as bundle: with tempfile.TemporaryDirectory( prefix=b'hg-perf-stream-consume-', dir=source_repo_dir, ) as tmp_dir: tmp_dir = fsencode(tmp_dir) run_variables[0] = bundle run_variables[1] = tmp_dir yield run_variables[0] = None run_variables[1] = None def runone(): bundle = run_variables[0] tmp_dir = run_variables[1] # we actually wants to copy all config to ensure the repo config is # taken in account during the benchmark new_ui = repo.ui.__class__(repo.ui) # only pass ui when no srcrepo localrepo.createrepository( new_ui, tmp_dir, requirements=repo.requirements ) target = hg.repository(new_ui, tmp_dir) gen = exchange.readbundle(target.ui, bundle, bundle.name) # stream v1 if util.safehasattr(gen, 'apply'): gen.apply(target) else: with target.transaction(b"perf::stream-consume") as tr: bundle2.applybundle( target, gen, tr, source=b'unbundle', url=filename, ) timer(runone, context=context, title=b"consume") fm.end() @command(b'perf::parents|perfparents', formatteropts) def perfparents(ui, repo, **opts): """benchmark the time necessary to fetch one changeset's parents. The fetch is done using the `node identifier`, traversing all object layers from the repository object. The first N revisions will be used for this benchmark. N is controlled by the ``perf.parentscount`` config option (default: 1000). """ opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) # control the number of commits perfparents iterates over # experimental config: perf.parentscount count = getint(ui, b"perf", b"parentscount", 1000) if len(repo.changelog) < count: raise error.Abort(b"repo needs %d commits for this test" % count) repo = repo.unfiltered() nl = [repo.changelog.node(i) for i in _xrange(count)] def d(): for n in nl: repo.changelog.parents(n) timer(d) fm.end() @command(b'perf::ctxfiles|perfctxfiles', formatteropts) def perfctxfiles(ui, repo, x, **opts): opts = _byteskwargs(opts) x = int(x) timer, fm = gettimer(ui, opts) def d(): len(repo[x].files()) timer(d) fm.end() @command(b'perf::rawfiles|perfrawfiles', formatteropts) def perfrawfiles(ui, repo, x, **opts): opts = _byteskwargs(opts) x = int(x) timer, fm = gettimer(ui, opts) cl = repo.changelog def d(): len(cl.read(x)[3]) timer(d) fm.end() @command(b'perf::lookup|perflookup', formatteropts) def perflookup(ui, repo, rev, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) timer(lambda: len(repo.lookup(rev))) fm.end() @command( b'perf::linelogedits|perflinelogedits', [ (b'n', b'edits', 10000, b'number of edits'), (b'', b'max-hunk-lines', 10, b'max lines in a hunk'), ], norepo=True, ) def perflinelogedits(ui, **opts): from mercurial import linelog opts = _byteskwargs(opts) edits = opts[b'edits'] maxhunklines = opts[b'max_hunk_lines'] maxb1 = 100000 random.seed(0) randint = random.randint currentlines = 0 arglist = [] for rev in _xrange(edits): a1 = randint(0, currentlines) a2 = randint(a1, min(currentlines, a1 + maxhunklines)) b1 = randint(0, maxb1) b2 = randint(b1, b1 + maxhunklines) currentlines += (b2 - b1) - (a2 - a1) arglist.append((rev, a1, a2, b1, b2)) def d(): ll = linelog.linelog() for args in arglist: ll.replacelines(*args) timer, fm = gettimer(ui, opts) timer(d) fm.end() @command(b'perf::revrange|perfrevrange', formatteropts) def perfrevrange(ui, repo, *specs, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) revrange = scmutil.revrange timer(lambda: len(revrange(repo, specs))) fm.end() @command(b'perf::nodelookup|perfnodelookup', formatteropts) def perfnodelookup(ui, repo, rev, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = scmutil.revsingle(repo, rev).node() try: cl = revlog(getsvfs(repo), radix=b"00changelog") except TypeError: cl = revlog(getsvfs(repo), indexfile=b"00changelog.i") def d(): cl.rev(n) clearcaches(cl) timer(d) fm.end() @command( b'perf::log|perflog', [(b'', b'rename', False, b'ask log to follow renames')] + formatteropts, ) def perflog(ui, repo, rev=None, **opts): opts = _byteskwargs(opts) if rev is None: rev = [] timer, fm = gettimer(ui, opts) ui.pushbuffer() timer( lambda: commands.log( ui, repo, rev=rev, date=b'', user=b'', copies=opts.get(b'rename') ) ) ui.popbuffer() fm.end() @command(b'perf::moonwalk|perfmoonwalk', formatteropts) def perfmoonwalk(ui, repo, **opts): """benchmark walking the changelog backwards This also loads the changelog data for each revision in the changelog. """ opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) def moonwalk(): for i in repo.changelog.revs(start=(len(repo) - 1), stop=-1): ctx = repo[i] ctx.branch() # read changelog data (in addition to the index) timer(moonwalk) fm.end() @command( b'perf::templating|perftemplating', [ (b'r', b'rev', [], b'revisions to run the template on'), ] + formatteropts, ) def perftemplating(ui, repo, testedtemplate=None, **opts): """test the rendering time of a given template""" if makelogtemplater is None: raise error.Abort( b"perftemplating not available with this Mercurial", hint=b"use 4.3 or later", ) opts = _byteskwargs(opts) nullui = ui.copy() nullui.fout = open(os.devnull, 'wb') nullui.disablepager() revs = opts.get(b'rev') if not revs: revs = [b'all()'] revs = list(scmutil.revrange(repo, revs)) defaulttemplate = ( b'{date|shortdate} [{rev}:{node|short}]' b' {author|person}: {desc|firstline}\n' ) if testedtemplate is None: testedtemplate = defaulttemplate displayer = makelogtemplater(nullui, repo, testedtemplate) def format(): for r in revs: ctx = repo[r] displayer.show(ctx) displayer.flush(ctx) timer, fm = gettimer(ui, opts) timer(format) fm.end() def _displaystats(ui, opts, entries, data): # use a second formatter because the data are quite different, not sure # how it flies with the templater. fm = ui.formatter(b'perf-stats', opts) for key, title in entries: values = data[key] nbvalues = len(data) values.sort() stats = { 'key': key, 'title': title, 'nbitems': len(values), 'min': values[0][0], '10%': values[(nbvalues * 10) // 100][0], '25%': values[(nbvalues * 25) // 100][0], '50%': values[(nbvalues * 50) // 100][0], '75%': values[(nbvalues * 75) // 100][0], '80%': values[(nbvalues * 80) // 100][0], '85%': values[(nbvalues * 85) // 100][0], '90%': values[(nbvalues * 90) // 100][0], '95%': values[(nbvalues * 95) // 100][0], '99%': values[(nbvalues * 99) // 100][0], 'max': values[-1][0], } fm.startitem() fm.data(**stats) # make node pretty for the human output fm.plain('### %s (%d items)\n' % (title, len(values))) lines = [ 'min', '10%', '25%', '50%', '75%', '80%', '85%', '90%', '95%', '99%', 'max', ] for l in lines: fm.plain('%s: %s\n' % (l, stats[l])) fm.end() @command( b'perf::helper-mergecopies|perfhelper-mergecopies', formatteropts + [ (b'r', b'revs', [], b'restrict search to these revisions'), (b'', b'timing', False, b'provides extra data (costly)'), (b'', b'stats', False, b'provides statistic about the measured data'), ], ) def perfhelpermergecopies(ui, repo, revs=[], **opts): """find statistics about potential parameters for `perfmergecopies` This command find (base, p1, p2) triplet relevant for copytracing benchmarking in the context of a merge. It reports values for some of the parameters that impact merge copy tracing time during merge. If `--timing` is set, rename detection is run and the associated timing will be reported. The extra details come at the cost of slower command execution. Since rename detection is only run once, other factors might easily affect the precision of the timing. However it should give a good approximation of which revision triplets are very costly. """ opts = _byteskwargs(opts) fm = ui.formatter(b'perf', opts) dotiming = opts[b'timing'] dostats = opts[b'stats'] output_template = [ ("base", "%(base)12s"), ("p1", "%(p1.node)12s"), ("p2", "%(p2.node)12s"), ("p1.nb-revs", "%(p1.nbrevs)12d"), ("p1.nb-files", "%(p1.nbmissingfiles)12d"), ("p1.renames", "%(p1.renamedfiles)12d"), ("p1.time", "%(p1.time)12.3f"), ("p2.nb-revs", "%(p2.nbrevs)12d"), ("p2.nb-files", "%(p2.nbmissingfiles)12d"), ("p2.renames", "%(p2.renamedfiles)12d"), ("p2.time", "%(p2.time)12.3f"), ("renames", "%(nbrenamedfiles)12d"), ("total.time", "%(time)12.3f"), ] if not dotiming: output_template = [ i for i in output_template if not ('time' in i[0] or 'renames' in i[0]) ] header_names = [h for (h, v) in output_template] output = ' '.join([v for (h, v) in output_template]) + '\n' header = ' '.join(['%12s'] * len(header_names)) + '\n' fm.plain(header % tuple(header_names)) if not revs: revs = ['all()'] revs = scmutil.revrange(repo, revs) if dostats: alldata = { 'nbrevs': [], 'nbmissingfiles': [], } if dotiming: alldata['parentnbrenames'] = [] alldata['totalnbrenames'] = [] alldata['parenttime'] = [] alldata['totaltime'] = [] roi = repo.revs('merge() and %ld', revs) for r in roi: ctx = repo[r] p1 = ctx.p1() p2 = ctx.p2() bases = repo.changelog._commonancestorsheads(p1.rev(), p2.rev()) for b in bases: b = repo[b] p1missing = copies._computeforwardmissing(b, p1) p2missing = copies._computeforwardmissing(b, p2) data = { b'base': b.hex(), b'p1.node': p1.hex(), b'p1.nbrevs': len(repo.revs('only(%d, %d)', p1.rev(), b.rev())), b'p1.nbmissingfiles': len(p1missing), b'p2.node': p2.hex(), b'p2.nbrevs': len(repo.revs('only(%d, %d)', p2.rev(), b.rev())), b'p2.nbmissingfiles': len(p2missing), } if dostats: if p1missing: alldata['nbrevs'].append( (data['p1.nbrevs'], b.hex(), p1.hex()) ) alldata['nbmissingfiles'].append( (data['p1.nbmissingfiles'], b.hex(), p1.hex()) ) if p2missing: alldata['nbrevs'].append( (data['p2.nbrevs'], b.hex(), p2.hex()) ) alldata['nbmissingfiles'].append( (data['p2.nbmissingfiles'], b.hex(), p2.hex()) ) if dotiming: begin = util.timer() mergedata = copies.mergecopies(repo, p1, p2, b) end = util.timer() # not very stable timing since we did only one run data['time'] = end - begin # mergedata contains five dicts: "copy", "movewithdir", # "diverge", "renamedelete" and "dirmove". # The first 4 are about renamed file so lets count that. renames = len(mergedata[0]) renames += len(mergedata[1]) renames += len(mergedata[2]) renames += len(mergedata[3]) data['nbrenamedfiles'] = renames begin = util.timer() p1renames = copies.pathcopies(b, p1) end = util.timer() data['p1.time'] = end - begin begin = util.timer() p2renames = copies.pathcopies(b, p2) end = util.timer() data['p2.time'] = end - begin data['p1.renamedfiles'] = len(p1renames) data['p2.renamedfiles'] = len(p2renames) if dostats: if p1missing: alldata['parentnbrenames'].append( (data['p1.renamedfiles'], b.hex(), p1.hex()) ) alldata['parenttime'].append( (data['p1.time'], b.hex(), p1.hex()) ) if p2missing: alldata['parentnbrenames'].append( (data['p2.renamedfiles'], b.hex(), p2.hex()) ) alldata['parenttime'].append( (data['p2.time'], b.hex(), p2.hex()) ) if p1missing or p2missing: alldata['totalnbrenames'].append( ( data['nbrenamedfiles'], b.hex(), p1.hex(), p2.hex(), ) ) alldata['totaltime'].append( (data['time'], b.hex(), p1.hex(), p2.hex()) ) fm.startitem() fm.data(**data) # make node pretty for the human output out = data.copy() out['base'] = fm.hexfunc(b.node()) out['p1.node'] = fm.hexfunc(p1.node()) out['p2.node'] = fm.hexfunc(p2.node()) fm.plain(output % out) fm.end() if dostats: # use a second formatter because the data are quite different, not sure # how it flies with the templater. entries = [ ('nbrevs', 'number of revision covered'), ('nbmissingfiles', 'number of missing files at head'), ] if dotiming: entries.append( ('parentnbrenames', 'rename from one parent to base') ) entries.append(('totalnbrenames', 'total number of renames')) entries.append(('parenttime', 'time for one parent')) entries.append(('totaltime', 'time for both parents')) _displaystats(ui, opts, entries, alldata) @command( b'perf::helper-pathcopies|perfhelper-pathcopies', formatteropts + [ (b'r', b'revs', [], b'restrict search to these revisions'), (b'', b'timing', False, b'provides extra data (costly)'), (b'', b'stats', False, b'provides statistic about the measured data'), ], ) def perfhelperpathcopies(ui, repo, revs=[], **opts): """find statistic about potential parameters for the `perftracecopies` This command find source-destination pair relevant for copytracing testing. It report value for some of the parameters that impact copy tracing time. If `--timing` is set, rename detection is run and the associated timing will be reported. The extra details comes at the cost of a slower command execution. Since the rename detection is only run once, other factors might easily affect the precision of the timing. However it should give a good approximation of which revision pairs are very costly. """ opts = _byteskwargs(opts) fm = ui.formatter(b'perf', opts) dotiming = opts[b'timing'] dostats = opts[b'stats'] if dotiming: header = '%12s %12s %12s %12s %12s %12s\n' output = ( "%(source)12s %(destination)12s " "%(nbrevs)12d %(nbmissingfiles)12d " "%(nbrenamedfiles)12d %(time)18.5f\n" ) header_names = ( "source", "destination", "nb-revs", "nb-files", "nb-renames", "time", ) fm.plain(header % header_names) else: header = '%12s %12s %12s %12s\n' output = ( "%(source)12s %(destination)12s " "%(nbrevs)12d %(nbmissingfiles)12d\n" ) fm.plain(header % ("source", "destination", "nb-revs", "nb-files")) if not revs: revs = ['all()'] revs = scmutil.revrange(repo, revs) if dostats: alldata = { 'nbrevs': [], 'nbmissingfiles': [], } if dotiming: alldata['nbrenames'] = [] alldata['time'] = [] roi = repo.revs('merge() and %ld', revs) for r in roi: ctx = repo[r] p1 = ctx.p1().rev() p2 = ctx.p2().rev() bases = repo.changelog._commonancestorsheads(p1, p2) for p in (p1, p2): for b in bases: base = repo[b] parent = repo[p] missing = copies._computeforwardmissing(base, parent) if not missing: continue data = { b'source': base.hex(), b'destination': parent.hex(), b'nbrevs': len(repo.revs('only(%d, %d)', p, b)), b'nbmissingfiles': len(missing), } if dostats: alldata['nbrevs'].append( ( data['nbrevs'], base.hex(), parent.hex(), ) ) alldata['nbmissingfiles'].append( ( data['nbmissingfiles'], base.hex(), parent.hex(), ) ) if dotiming: begin = util.timer() renames = copies.pathcopies(base, parent) end = util.timer() # not very stable timing since we did only one run data['time'] = end - begin data['nbrenamedfiles'] = len(renames) if dostats: alldata['time'].append( ( data['time'], base.hex(), parent.hex(), ) ) alldata['nbrenames'].append( ( data['nbrenamedfiles'], base.hex(), parent.hex(), ) ) fm.startitem() fm.data(**data) out = data.copy() out['source'] = fm.hexfunc(base.node()) out['destination'] = fm.hexfunc(parent.node()) fm.plain(output % out) fm.end() if dostats: entries = [ ('nbrevs', 'number of revision covered'), ('nbmissingfiles', 'number of missing files at head'), ] if dotiming: entries.append(('nbrenames', 'renamed files')) entries.append(('time', 'time')) _displaystats(ui, opts, entries, alldata) @command(b'perf::cca|perfcca', formatteropts) def perfcca(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) fm.end() @command(b'perf::fncacheload|perffncacheload', formatteropts) def perffncacheload(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) s = repo.store def d(): s.fncache._load() timer(d) fm.end() @command(b'perf::fncachewrite|perffncachewrite', formatteropts) def perffncachewrite(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) s = repo.store lock = repo.lock() s.fncache._load() tr = repo.transaction(b'perffncachewrite') tr.addbackup(b'fncache') def d(): s.fncache._dirty = True s.fncache.write(tr) timer(d) tr.close() lock.release() fm.end() @command(b'perf::fncacheencode|perffncacheencode', formatteropts) def perffncacheencode(ui, repo, **opts): opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) s = repo.store s.fncache._load() def d(): for p in s.fncache.entries: s.encode(p) timer(d) fm.end() def _bdiffworker(q, blocks, xdiff, ready, done): while not done.is_set(): pair = q.get() while pair is not None: if xdiff: mdiff.bdiff.xdiffblocks(*pair) elif blocks: mdiff.bdiff.blocks(*pair) else: mdiff.textdiff(*pair) q.task_done() pair = q.get() q.task_done() # for the None one with ready: ready.wait() def _manifestrevision(repo, mnode): ml = repo.manifestlog if util.safehasattr(ml, b'getstorage'): store = ml.getstorage(b'') else: store = ml._revlog return store.revision(mnode) @command( b'perf::bdiff|perfbdiff', revlogopts + formatteropts + [ ( b'', b'count', 1, b'number of revisions to test (when using --startrev)', ), (b'', b'alldata', False, b'test bdiffs for all associated revisions'), (b'', b'threads', 0, b'number of thread to use (disable with 0)'), (b'', b'blocks', False, b'test computing diffs into blocks'), (b'', b'xdiff', False, b'use xdiff algorithm'), ], b'-c|-m|FILE REV', ) def perfbdiff(ui, repo, file_, rev=None, count=None, threads=0, **opts): """benchmark a bdiff between revisions By default, benchmark a bdiff between its delta parent and itself. With ``--count``, benchmark bdiffs between delta parents and self for N revisions starting at the specified revision. With ``--alldata``, assume the requested revision is a changeset and measure bdiffs for all changes related to that changeset (manifest and filelogs). """ opts = _byteskwargs(opts) if opts[b'xdiff'] and not opts[b'blocks']: raise error.CommandError(b'perfbdiff', b'--xdiff requires --blocks') if opts[b'alldata']: opts[b'changelog'] = True if opts.get(b'changelog') or opts.get(b'manifest'): file_, rev = None, file_ elif rev is None: raise error.CommandError(b'perfbdiff', b'invalid arguments') blocks = opts[b'blocks'] xdiff = opts[b'xdiff'] textpairs = [] r = cmdutil.openrevlog(repo, b'perfbdiff', file_, opts) startrev = r.rev(r.lookup(rev)) for rev in range(startrev, min(startrev + count, len(r) - 1)): if opts[b'alldata']: # Load revisions associated with changeset. ctx = repo[rev] mtext = _manifestrevision(repo, ctx.manifestnode()) for pctx in ctx.parents(): pman = _manifestrevision(repo, pctx.manifestnode()) textpairs.append((pman, mtext)) # Load filelog revisions by iterating manifest delta. man = ctx.manifest() pman = ctx.p1().manifest() for filename, change in pman.diff(man).items(): fctx = repo.file(filename) f1 = fctx.revision(change[0][0] or -1) f2 = fctx.revision(change[1][0] or -1) textpairs.append((f1, f2)) else: dp = r.deltaparent(rev) textpairs.append((r.revision(dp), r.revision(rev))) withthreads = threads > 0 if not withthreads: def d(): for pair in textpairs: if xdiff: mdiff.bdiff.xdiffblocks(*pair) elif blocks: mdiff.bdiff.blocks(*pair) else: mdiff.textdiff(*pair) else: q = queue() for i in _xrange(threads): q.put(None) ready = threading.Condition() done = threading.Event() for i in _xrange(threads): threading.Thread( target=_bdiffworker, args=(q, blocks, xdiff, ready, done) ).start() q.join() def d(): for pair in textpairs: q.put(pair) for i in _xrange(threads): q.put(None) with ready: ready.notify_all() q.join() timer, fm = gettimer(ui, opts) timer(d) fm.end() if withthreads: done.set() for i in _xrange(threads): q.put(None) with ready: ready.notify_all() @command( b'perf::unbundle', [ (b'', b'as-push', None, b'pretend the bundle comes from a push'), ] + formatteropts, b'BUNDLE_FILE', ) def perf_unbundle(ui, repo, fname, **opts): """benchmark application of a bundle in a repository. This does not include the final transaction processing The --as-push option make the unbundle operation appears like it comes from a client push. It change some aspect of the processing and associated performance profile. """ from mercurial import exchange from mercurial import bundle2 from mercurial import transaction opts = _byteskwargs(opts) ### some compatibility hotfix # # the data attribute is dropped in 63edc384d3b7 a changeset introducing a # critical regression that break transaction rollback for files that are # de-inlined. method = transaction.transaction._addentry pre_63edc384d3b7 = "data" in getargspec(method).args # the `detailed_exit_code` attribute is introduced in 33c0c25d0b0f # a changeset that is a close descendant of 18415fc918a1, the changeset # that conclude the fix run for the bug introduced in 63edc384d3b7. args = getargspec(error.Abort.__init__).args post_18415fc918a1 = "detailed_exit_code" in args unbundle_source = b'perf::unbundle' if opts[b'as_push']: unbundle_source = b'push' old_max_inline = None try: if not (pre_63edc384d3b7 or post_18415fc918a1): # disable inlining old_max_inline = mercurial.revlog._maxinline # large enough to never happen mercurial.revlog._maxinline = 2**50 with repo.lock(): bundle = [None, None] orig_quiet = repo.ui.quiet try: repo.ui.quiet = True with open(fname, mode="rb") as f: def noop_report(*args, **kwargs): pass def setup(): gen, tr = bundle if tr is not None: tr.abort() bundle[:] = [None, None] f.seek(0) bundle[0] = exchange.readbundle(ui, f, fname) bundle[1] = repo.transaction(b'perf::unbundle') # silence the transaction bundle[1]._report = noop_report def apply(): gen, tr = bundle bundle2.applybundle( repo, gen, tr, source=unbundle_source, url=fname, ) timer, fm = gettimer(ui, opts) timer(apply, setup=setup) fm.end() finally: repo.ui.quiet == orig_quiet gen, tr = bundle if tr is not None: tr.abort() finally: if old_max_inline is not None: mercurial.revlog._maxinline = old_max_inline @command( b'perf::unidiff|perfunidiff', revlogopts + formatteropts + [ ( b'', b'count', 1, b'number of revisions to test (when using --startrev)', ), (b'', b'alldata', False, b'test unidiffs for all associated revisions'), ], b'-c|-m|FILE REV', ) def perfunidiff(ui, repo, file_, rev=None, count=None, **opts): """benchmark a unified diff between revisions This doesn't include any copy tracing - it's just a unified diff of the texts. By default, benchmark a diff between its delta parent and itself. With ``--count``, benchmark diffs between delta parents and self for N revisions starting at the specified revision. With ``--alldata``, assume the requested revision is a changeset and measure diffs for all changes related to that changeset (manifest and filelogs). """ opts = _byteskwargs(opts) if opts[b'alldata']: opts[b'changelog'] = True if opts.get(b'changelog') or opts.get(b'manifest'): file_, rev = None, file_ elif rev is None: raise error.CommandError(b'perfunidiff', b'invalid arguments') textpairs = [] r = cmdutil.openrevlog(repo, b'perfunidiff', file_, opts) startrev = r.rev(r.lookup(rev)) for rev in range(startrev, min(startrev + count, len(r) - 1)): if opts[b'alldata']: # Load revisions associated with changeset. ctx = repo[rev] mtext = _manifestrevision(repo, ctx.manifestnode()) for pctx in ctx.parents(): pman = _manifestrevision(repo, pctx.manifestnode()) textpairs.append((pman, mtext)) # Load filelog revisions by iterating manifest delta. man = ctx.manifest() pman = ctx.p1().manifest() for filename, change in pman.diff(man).items(): fctx = repo.file(filename) f1 = fctx.revision(change[0][0] or -1) f2 = fctx.revision(change[1][0] or -1) textpairs.append((f1, f2)) else: dp = r.deltaparent(rev) textpairs.append((r.revision(dp), r.revision(rev))) def d(): for left, right in textpairs: # The date strings don't matter, so we pass empty strings. headerlines, hunks = mdiff.unidiff( left, b'', right, b'', b'left', b'right', binary=False ) # consume iterators in roughly the way patch.py does b'\n'.join(headerlines) b''.join(sum((list(hlines) for hrange, hlines in hunks), [])) timer, fm = gettimer(ui, opts) timer(d) fm.end() @command(b'perf::diffwd|perfdiffwd', formatteropts) def perfdiffwd(ui, repo, **opts): """Profile diff of working directory changes""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) options = { 'w': 'ignore_all_space', 'b': 'ignore_space_change', 'B': 'ignore_blank_lines', } for diffopt in ('', 'w', 'b', 'B', 'wB'): opts = {options[c]: b'1' for c in diffopt} def d(): ui.pushbuffer() commands.diff(ui, repo, **opts) ui.popbuffer() diffopt = diffopt.encode('ascii') title = b'diffopts: %s' % (diffopt and (b'-' + diffopt) or b'none') timer(d, title=title) fm.end() @command( b'perf::revlogindex|perfrevlogindex', revlogopts + formatteropts, b'-c|-m|FILE', ) def perfrevlogindex(ui, repo, file_=None, **opts): """Benchmark operations against a revlog index. This tests constructing a revlog instance, reading index data, parsing index data, and performing various operations related to index data. """ opts = _byteskwargs(opts) rl = cmdutil.openrevlog(repo, b'perfrevlogindex', file_, opts) opener = getattr(rl, 'opener') # trick linter # compat with hg <= 5.8 radix = getattr(rl, 'radix', None) indexfile = getattr(rl, '_indexfile', None) if indexfile is None: # compatibility with <= hg-5.8 indexfile = getattr(rl, 'indexfile') data = opener.read(indexfile) header = struct.unpack(b'>I', data[0:4])[0] version = header & 0xFFFF if version == 1: inline = header & (1 << 16) else: raise error.Abort(b'unsupported revlog version: %d' % version) parse_index_v1 = getattr(mercurial.revlog, 'parse_index_v1', None) if parse_index_v1 is None: parse_index_v1 = mercurial.revlog.revlogio().parseindex rllen = len(rl) node0 = rl.node(0) node25 = rl.node(rllen // 4) node50 = rl.node(rllen // 2) node75 = rl.node(rllen // 4 * 3) node100 = rl.node(rllen - 1) allrevs = range(rllen) allrevsrev = list(reversed(allrevs)) allnodes = [rl.node(rev) for rev in range(rllen)] allnodesrev = list(reversed(allnodes)) def constructor(): if radix is not None: revlog(opener, radix=radix) else: # hg <= 5.8 revlog(opener, indexfile=indexfile) def read(): with opener(indexfile) as fh: fh.read() def parseindex(): parse_index_v1(data, inline) def getentry(revornode): index = parse_index_v1(data, inline)[0] index[revornode] def getentries(revs, count=1): index = parse_index_v1(data, inline)[0] for i in range(count): for rev in revs: index[rev] def resolvenode(node): index = parse_index_v1(data, inline)[0] rev = getattr(index, 'rev', None) if rev is None: nodemap = getattr(parse_index_v1(data, inline)[0], 'nodemap', None) # This only works for the C code. if nodemap is None: return rev = nodemap.__getitem__ try: rev(node) except error.RevlogError: pass def resolvenodes(nodes, count=1): index = parse_index_v1(data, inline)[0] rev = getattr(index, 'rev', None) if rev is None: nodemap = getattr(parse_index_v1(data, inline)[0], 'nodemap', None) # This only works for the C code. if nodemap is None: return rev = nodemap.__getitem__ for i in range(count): for node in nodes: try: rev(node) except error.RevlogError: pass benches = [ (constructor, b'revlog constructor'), (read, b'read'), (parseindex, b'create index object'), (lambda: getentry(0), b'retrieve index entry for rev 0'), (lambda: resolvenode(b'a' * 20), b'look up missing node'), (lambda: resolvenode(node0), b'look up node at rev 0'), (lambda: resolvenode(node25), b'look up node at 1/4 len'), (lambda: resolvenode(node50), b'look up node at 1/2 len'), (lambda: resolvenode(node75), b'look up node at 3/4 len'), (lambda: resolvenode(node100), b'look up node at tip'), # 2x variation is to measure caching impact. (lambda: resolvenodes(allnodes), b'look up all nodes (forward)'), (lambda: resolvenodes(allnodes, 2), b'look up all nodes 2x (forward)'), (lambda: resolvenodes(allnodesrev), b'look up all nodes (reverse)'), ( lambda: resolvenodes(allnodesrev, 2), b'look up all nodes 2x (reverse)', ), (lambda: getentries(allrevs), b'retrieve all index entries (forward)'), ( lambda: getentries(allrevs, 2), b'retrieve all index entries 2x (forward)', ), ( lambda: getentries(allrevsrev), b'retrieve all index entries (reverse)', ), ( lambda: getentries(allrevsrev, 2), b'retrieve all index entries 2x (reverse)', ), ] for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command( b'perf::revlogrevisions|perfrevlogrevisions', revlogopts + formatteropts + [ (b'd', b'dist', 100, b'distance between the revisions'), (b's', b'startrev', 0, b'revision to start reading at'), (b'', b'reverse', False, b'read in reverse'), ], b'-c|-m|FILE', ) def perfrevlogrevisions( ui, repo, file_=None, startrev=0, reverse=False, **opts ): """Benchmark reading a series of revisions from a revlog. By default, we read every ``-d/--dist`` revision from 0 to tip of the specified revlog. The start revision can be defined via ``-s/--startrev``. """ opts = _byteskwargs(opts) rl = cmdutil.openrevlog(repo, b'perfrevlogrevisions', file_, opts) rllen = getlen(ui)(rl) if startrev < 0: startrev = rllen + startrev def d(): rl.clearcaches() beginrev = startrev endrev = rllen dist = opts[b'dist'] if reverse: beginrev, endrev = endrev - 1, beginrev - 1 dist = -1 * dist for x in _xrange(beginrev, endrev, dist): # Old revisions don't support passing int. n = rl.node(x) rl.revision(n) timer, fm = gettimer(ui, opts) timer(d) fm.end() @command( b'perf::revlogwrite|perfrevlogwrite', revlogopts + formatteropts + [ (b's', b'startrev', 1000, b'revision to start writing at'), (b'', b'stoprev', -1, b'last revision to write'), (b'', b'count', 3, b'number of passes to perform'), (b'', b'details', False, b'print timing for every revisions tested'), (b'', b'source', b'full', b'the kind of data feed in the revlog'), (b'', b'lazydeltabase', True, b'try the provided delta first'), (b'', b'clear-caches', True, b'clear revlog cache between calls'), ], b'-c|-m|FILE', ) def perfrevlogwrite(ui, repo, file_=None, startrev=1000, stoprev=-1, **opts): """Benchmark writing a series of revisions to a revlog. Possible source values are: * `full`: add from a full text (default). * `parent-1`: add from a delta to the first parent * `parent-2`: add from a delta to the second parent if it exists (use a delta from the first parent otherwise) * `parent-smallest`: add from the smallest delta (either p1 or p2) * `storage`: add from the existing precomputed deltas Note: This performance command measures performance in a custom way. As a result some of the global configuration of the 'perf' command does not apply to it: * ``pre-run``: disabled * ``profile-benchmark``: disabled * ``run-limits``: disabled use --count instead """ opts = _byteskwargs(opts) rl = cmdutil.openrevlog(repo, b'perfrevlogwrite', file_, opts) rllen = getlen(ui)(rl) if startrev < 0: startrev = rllen + startrev if stoprev < 0: stoprev = rllen + stoprev lazydeltabase = opts['lazydeltabase'] source = opts['source'] clearcaches = opts['clear_caches'] validsource = ( b'full', b'parent-1', b'parent-2', b'parent-smallest', b'storage', ) if source not in validsource: raise error.Abort('invalid source type: %s' % source) ### actually gather results count = opts['count'] if count <= 0: raise error.Abort('invalide run count: %d' % count) allresults = [] for c in range(count): timing = _timeonewrite( ui, rl, source, startrev, stoprev, c + 1, lazydeltabase=lazydeltabase, clearcaches=clearcaches, ) allresults.append(timing) ### consolidate the results in a single list results = [] for idx, (rev, t) in enumerate(allresults[0]): ts = [t] for other in allresults[1:]: orev, ot = other[idx] assert orev == rev ts.append(ot) results.append((rev, ts)) resultcount = len(results) ### Compute and display relevant statistics # get a formatter fm = ui.formatter(b'perf', opts) displayall = ui.configbool(b"perf", b"all-timing", True) # print individual details if requested if opts['details']: for idx, item in enumerate(results, 1): rev, data = item title = 'revisions #%d of %d, rev %d' % (idx, resultcount, rev) formatone(fm, data, title=title, displayall=displayall) # sorts results by median time results.sort(key=lambda x: sorted(x[1])[len(x[1]) // 2]) # list of (name, index) to display) relevants = [ ("min", 0), ("10%", resultcount * 10 // 100), ("25%", resultcount * 25 // 100), ("50%", resultcount * 70 // 100), ("75%", resultcount * 75 // 100), ("90%", resultcount * 90 // 100), ("95%", resultcount * 95 // 100), ("99%", resultcount * 99 // 100), ("99.9%", resultcount * 999 // 1000), ("99.99%", resultcount * 9999 // 10000), ("99.999%", resultcount * 99999 // 100000), ("max", -1), ] if not ui.quiet: for name, idx in relevants: data = results[idx] title = '%s of %d, rev %d' % (name, resultcount, data[0]) formatone(fm, data[1], title=title, displayall=displayall) # XXX summing that many float will not be very precise, we ignore this fact # for now totaltime = [] for item in allresults: totaltime.append( ( sum(x[1][0] for x in item), sum(x[1][1] for x in item), sum(x[1][2] for x in item), ) ) formatone( fm, totaltime, title="total time (%d revs)" % resultcount, displayall=displayall, ) fm.end() class _faketr: def add(s, x, y, z=None): return None def _timeonewrite( ui, orig, source, startrev, stoprev, runidx=None, lazydeltabase=True, clearcaches=True, ): timings = [] tr = _faketr() with _temprevlog(ui, orig, startrev) as dest: if hasattr(dest, "delta_config"): dest.delta_config.lazy_delta_base = lazydeltabase else: dest._lazydeltabase = lazydeltabase revs = list(orig.revs(startrev, stoprev)) total = len(revs) topic = 'adding' if runidx is not None: topic += ' (run #%d)' % runidx # Support both old and new progress API if util.safehasattr(ui, 'makeprogress'): progress = ui.makeprogress(topic, unit='revs', total=total) def updateprogress(pos): progress.update(pos) def completeprogress(): progress.complete() else: def updateprogress(pos): ui.progress(topic, pos, unit='revs', total=total) def completeprogress(): ui.progress(topic, None, unit='revs', total=total) for idx, rev in enumerate(revs): updateprogress(idx) addargs, addkwargs = _getrevisionseed(orig, rev, tr, source) if clearcaches: dest.index.clearcaches() dest.clearcaches() with timeone() as r: dest.addrawrevision(*addargs, **addkwargs) timings.append((rev, r[0])) updateprogress(total) completeprogress() return timings def _getrevisionseed(orig, rev, tr, source): from mercurial.node import nullid linkrev = orig.linkrev(rev) node = orig.node(rev) p1, p2 = orig.parents(node) flags = orig.flags(rev) cachedelta = None text = None if source == b'full': text = orig.revision(rev) elif source == b'parent-1': baserev = orig.rev(p1) cachedelta = (baserev, orig.revdiff(p1, rev)) elif source == b'parent-2': parent = p2 if p2 == nullid: parent = p1 baserev = orig.rev(parent) cachedelta = (baserev, orig.revdiff(parent, rev)) elif source == b'parent-smallest': p1diff = orig.revdiff(p1, rev) parent = p1 diff = p1diff if p2 != nullid: p2diff = orig.revdiff(p2, rev) if len(p1diff) > len(p2diff): parent = p2 diff = p2diff baserev = orig.rev(parent) cachedelta = (baserev, diff) elif source == b'storage': baserev = orig.deltaparent(rev) cachedelta = (baserev, orig.revdiff(orig.node(baserev), rev)) return ( (text, tr, linkrev, p1, p2), {'node': node, 'flags': flags, 'cachedelta': cachedelta}, ) @contextlib.contextmanager def _temprevlog(ui, orig, truncaterev): from mercurial import vfs as vfsmod if orig._inline: raise error.Abort('not supporting inline revlog (yet)') revlogkwargs = {} k = 'upperboundcomp' if util.safehasattr(orig, k): revlogkwargs[k] = getattr(orig, k) indexfile = getattr(orig, '_indexfile', None) if indexfile is None: # compatibility with <= hg-5.8 indexfile = getattr(orig, 'indexfile') origindexpath = orig.opener.join(indexfile) datafile = getattr(orig, '_datafile', getattr(orig, 'datafile')) origdatapath = orig.opener.join(datafile) radix = b'revlog' indexname = b'revlog.i' dataname = b'revlog.d' tmpdir = tempfile.mkdtemp(prefix='tmp-hgperf-') try: # copy the data file in a temporary directory ui.debug('copying data in %s\n' % tmpdir) destindexpath = os.path.join(tmpdir, 'revlog.i') destdatapath = os.path.join(tmpdir, 'revlog.d') shutil.copyfile(origindexpath, destindexpath) shutil.copyfile(origdatapath, destdatapath) # remove the data we want to add again ui.debug('truncating data to be rewritten\n') with open(destindexpath, 'ab') as index: index.seek(0) index.truncate(truncaterev * orig._io.size) with open(destdatapath, 'ab') as data: data.seek(0) data.truncate(orig.start(truncaterev)) # instantiate a new revlog from the temporary copy ui.debug('truncating adding to be rewritten\n') vfs = vfsmod.vfs(tmpdir) vfs.options = getattr(orig.opener, 'options', None) try: dest = revlog(vfs, radix=radix, **revlogkwargs) except TypeError: dest = revlog( vfs, indexfile=indexname, datafile=dataname, **revlogkwargs ) if dest._inline: raise error.Abort('not supporting inline revlog (yet)') # make sure internals are initialized dest.revision(len(dest) - 1) yield dest del dest, vfs finally: shutil.rmtree(tmpdir, True) @command( b'perf::revlogchunks|perfrevlogchunks', revlogopts + formatteropts + [ (b'e', b'engines', b'', b'compression engines to use'), (b's', b'startrev', 0, b'revision to start at'), ], b'-c|-m|FILE', ) def perfrevlogchunks(ui, repo, file_=None, engines=None, startrev=0, **opts): """Benchmark operations on revlog chunks. Logically, each revlog is a collection of fulltext revisions. However, stored within each revlog are "chunks" of possibly compressed data. This data needs to be read and decompressed or compressed and written. This command measures the time it takes to read+decompress and recompress chunks in a revlog. It effectively isolates I/O and compression performance. For measurements of higher-level operations like resolving revisions, see ``perfrevlogrevisions`` and ``perfrevlogrevision``. """ opts = _byteskwargs(opts) rl = cmdutil.openrevlog(repo, b'perfrevlogchunks', file_, opts) # - _chunkraw was renamed to _getsegmentforrevs # - _getsegmentforrevs was moved on the inner object try: segmentforrevs = rl._inner.get_segment_for_revs except AttributeError: try: segmentforrevs = rl._getsegmentforrevs except AttributeError: segmentforrevs = rl._chunkraw # Verify engines argument. if engines: engines = {e.strip() for e in engines.split(b',')} for engine in engines: try: util.compressionengines[engine] except KeyError: raise error.Abort(b'unknown compression engine: %s' % engine) else: engines = [] for e in util.compengines: engine = util.compengines[e] try: if engine.available(): engine.revlogcompressor().compress(b'dummy') engines.append(e) except NotImplementedError: pass revs = list(rl.revs(startrev, len(rl) - 1)) @contextlib.contextmanager def reading(rl): if getattr(rl, 'reading', None) is not None: with rl.reading(): yield None elif rl._inline: indexfile = getattr(rl, '_indexfile', None) if indexfile is None: # compatibility with <= hg-5.8 indexfile = getattr(rl, 'indexfile') yield getsvfs(repo)(indexfile) else: datafile = getattr(rl, 'datafile', getattr(rl, 'datafile')) yield getsvfs(repo)(datafile) if getattr(rl, 'reading', None) is not None: @contextlib.contextmanager def lazy_reading(rl): with rl.reading(): yield else: @contextlib.contextmanager def lazy_reading(rl): yield def doread(): rl.clearcaches() for rev in revs: with lazy_reading(rl): segmentforrevs(rev, rev) def doreadcachedfh(): rl.clearcaches() with reading(rl) as fh: if fh is not None: for rev in revs: segmentforrevs(rev, rev, df=fh) else: for rev in revs: segmentforrevs(rev, rev) def doreadbatch(): rl.clearcaches() with lazy_reading(rl): segmentforrevs(revs[0], revs[-1]) def doreadbatchcachedfh(): rl.clearcaches() with reading(rl) as fh: if fh is not None: segmentforrevs(revs[0], revs[-1], df=fh) else: segmentforrevs(revs[0], revs[-1]) def dochunk(): rl.clearcaches() # chunk used to be available directly on the revlog _chunk = getattr(rl, '_inner', rl)._chunk with reading(rl) as fh: if fh is not None: for rev in revs: _chunk(rev, df=fh) else: for rev in revs: _chunk(rev) chunks = [None] def dochunkbatch(): rl.clearcaches() _chunks = getattr(rl, '_inner', rl)._chunks with reading(rl) as fh: if fh is not None: # Save chunks as a side-effect. chunks[0] = _chunks(revs, df=fh) else: # Save chunks as a side-effect. chunks[0] = _chunks(revs) def docompress(compressor): rl.clearcaches() compressor_holder = getattr(rl, '_inner', rl) try: # Swap in the requested compression engine. oldcompressor = compressor_holder._compressor compressor_holder._compressor = compressor for chunk in chunks[0]: rl.compress(chunk) finally: compressor_holder._compressor = oldcompressor benches = [ (lambda: doread(), b'read'), (lambda: doreadcachedfh(), b'read w/ reused fd'), (lambda: doreadbatch(), b'read batch'), (lambda: doreadbatchcachedfh(), b'read batch w/ reused fd'), (lambda: dochunk(), b'chunk'), (lambda: dochunkbatch(), b'chunk batch'), ] for engine in sorted(engines): compressor = util.compengines[engine].revlogcompressor() benches.append( ( functools.partial(docompress, compressor), b'compress w/ %s' % engine, ) ) for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command( b'perf::revlogrevision|perfrevlogrevision', revlogopts + formatteropts + [(b'', b'cache', False, b'use caches instead of clearing')], b'-c|-m|FILE REV', ) def perfrevlogrevision(ui, repo, file_, rev=None, cache=None, **opts): """Benchmark obtaining a revlog revision. Obtaining a revlog revision consists of roughly the following steps: 1. Compute the delta chain 2. Slice the delta chain if applicable 3. Obtain the raw chunks for that delta chain 4. Decompress each raw chunk 5. Apply binary patches to obtain fulltext 6. Verify hash of fulltext This command measures the time spent in each of these phases. """ opts = _byteskwargs(opts) if opts.get(b'changelog') or opts.get(b'manifest'): file_, rev = None, file_ elif rev is None: raise error.CommandError(b'perfrevlogrevision', b'invalid arguments') r = cmdutil.openrevlog(repo, b'perfrevlogrevision', file_, opts) # _chunkraw was renamed to _getsegmentforrevs. try: segmentforrevs = r._inner.get_segment_for_revs except AttributeError: try: segmentforrevs = r._getsegmentforrevs except AttributeError: segmentforrevs = r._chunkraw node = r.lookup(rev) rev = r.rev(node) if getattr(r, 'reading', None) is not None: @contextlib.contextmanager def lazy_reading(r): with r.reading(): yield else: @contextlib.contextmanager def lazy_reading(r): yield def getrawchunks(data, chain): start = r.start length = r.length inline = r._inline try: iosize = r.index.entry_size except AttributeError: iosize = r._io.size buffer = util.buffer chunks = [] ladd = chunks.append for idx, item in enumerate(chain): offset = start(item[0]) bits = data[idx] for rev in item: chunkstart = start(rev) if inline: chunkstart += (rev + 1) * iosize chunklength = length(rev) ladd(buffer(bits, chunkstart - offset, chunklength)) return chunks def dodeltachain(rev): if not cache: r.clearcaches() r._deltachain(rev) def doread(chain): if not cache: r.clearcaches() for item in slicedchain: with lazy_reading(r): segmentforrevs(item[0], item[-1]) def doslice(r, chain, size): for s in slicechunk(r, chain, targetsize=size): pass def dorawchunks(data, chain): if not cache: r.clearcaches() getrawchunks(data, chain) def dodecompress(chunks): decomp = r.decompress for chunk in chunks: decomp(chunk) def dopatch(text, bins): if not cache: r.clearcaches() mdiff.patches(text, bins) def dohash(text): if not cache: r.clearcaches() r.checkhash(text, node, rev=rev) def dorevision(): if not cache: r.clearcaches() r.revision(node) try: from mercurial.revlogutils.deltas import slicechunk except ImportError: slicechunk = getattr(revlog, '_slicechunk', None) size = r.length(rev) chain = r._deltachain(rev)[0] with_sparse_read = False if hasattr(r, 'data_config'): with_sparse_read = r.data_config.with_sparse_read elif hasattr(r, '_withsparseread'): with_sparse_read = r._withsparseread if with_sparse_read: slicedchain = (chain,) else: slicedchain = tuple(slicechunk(r, chain, targetsize=size)) data = [segmentforrevs(seg[0], seg[-1])[1] for seg in slicedchain] rawchunks = getrawchunks(data, slicedchain) bins = r._inner._chunks(chain) text = bytes(bins[0]) bins = bins[1:] text = mdiff.patches(text, bins) benches = [ (lambda: dorevision(), b'full'), (lambda: dodeltachain(rev), b'deltachain'), (lambda: doread(chain), b'read'), ] if with_sparse_read: slicing = (lambda: doslice(r, chain, size), b'slice-sparse-chain') benches.append(slicing) benches.extend( [ (lambda: dorawchunks(data, slicedchain), b'rawchunks'), (lambda: dodecompress(rawchunks), b'decompress'), (lambda: dopatch(text, bins), b'patch'), (lambda: dohash(text), b'hash'), ] ) timer, fm = gettimer(ui, opts) for fn, title in benches: timer(fn, title=title) fm.end() @command( b'perf::revset|perfrevset', [ (b'C', b'clear', False, b'clear volatile cache between each call.'), (b'', b'contexts', False, b'obtain changectx for each revision'), ] + formatteropts, b"REVSET", ) def perfrevset(ui, repo, expr, clear=False, contexts=False, **opts): """benchmark the execution time of a revset Use the --clean option if need to evaluate the impact of build volatile revisions set cache on the revset execution. Volatile cache hold filtered and obsolete related cache.""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) def d(): if clear: repo.invalidatevolatilesets() if contexts: for ctx in repo.set(expr): pass else: for r in repo.revs(expr): pass timer(d) fm.end() @command( b'perf::volatilesets|perfvolatilesets', [ (b'', b'clear-obsstore', False, b'drop obsstore between each call.'), ] + formatteropts, ) def perfvolatilesets(ui, repo, *names, **opts): """benchmark the computation of various volatile set Volatile set computes element related to filtering and obsolescence.""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) repo = repo.unfiltered() def getobs(name): def d(): repo.invalidatevolatilesets() if opts[b'clear_obsstore']: clearfilecache(repo, b'obsstore') obsolete.getrevs(repo, name) return d allobs = sorted(obsolete.cachefuncs) if names: allobs = [n for n in allobs if n in names] for name in allobs: timer(getobs(name), title=name) def getfiltered(name): def d(): repo.invalidatevolatilesets() if opts[b'clear_obsstore']: clearfilecache(repo, b'obsstore') repoview.filterrevs(repo, name) return d allfilter = sorted(repoview.filtertable) if names: allfilter = [n for n in allfilter if n in names] for name in allfilter: timer(getfiltered(name), title=name) fm.end() @command( b'perf::branchmap|perfbranchmap', [ (b'f', b'full', False, b'Includes build time of subset'), ( b'', b'clear-revbranch', False, b'purge the revbranch cache between computation', ), ] + formatteropts, ) def perfbranchmap(ui, repo, *filternames, **opts): """benchmark the update of a branchmap This benchmarks the full repo.branchmap() call with read and write disabled """ opts = _byteskwargs(opts) full = opts.get(b"full", False) clear_revbranch = opts.get(b"clear_revbranch", False) timer, fm = gettimer(ui, opts) def getbranchmap(filtername): """generate a benchmark function for the filtername""" if filtername is None: view = repo else: view = repo.filtered(filtername) if util.safehasattr(view._branchcaches, '_per_filter'): filtered = view._branchcaches._per_filter else: # older versions filtered = view._branchcaches def d(): if clear_revbranch: repo.revbranchcache()._clear() if full: view._branchcaches.clear() else: filtered.pop(filtername, None) view.branchmap() return d # add filter in smaller subset to bigger subset possiblefilters = set(repoview.filtertable) if filternames: possiblefilters &= set(filternames) subsettable = getbranchmapsubsettable() allfilters = [] while possiblefilters: for name in possiblefilters: subset = subsettable.get(name) if subset not in possiblefilters: break else: assert False, b'subset cycle %s!' % possiblefilters allfilters.append(name) possiblefilters.remove(name) # warm the cache if not full: for name in allfilters: repo.filtered(name).branchmap() if not filternames or b'unfiltered' in filternames: # add unfiltered allfilters.append(None) old_branch_cache_from_file = None branchcacheread = None if util.safehasattr(branchmap, 'branch_cache_from_file'): old_branch_cache_from_file = branchmap.branch_cache_from_file branchmap.branch_cache_from_file = lambda *args: None elif util.safehasattr(branchmap.branchcache, 'fromfile'): branchcacheread = safeattrsetter(branchmap.branchcache, b'fromfile') branchcacheread.set(classmethod(lambda *args: None)) else: # older versions branchcacheread = safeattrsetter(branchmap, b'read') branchcacheread.set(lambda *args: None) if util.safehasattr(branchmap, '_LocalBranchCache'): branchcachewrite = safeattrsetter(branchmap._LocalBranchCache, b'write') branchcachewrite.set(lambda *args: None) else: branchcachewrite = safeattrsetter(branchmap.branchcache, b'write') branchcachewrite.set(lambda *args: None) try: for name in allfilters: printname = name if name is None: printname = b'unfiltered' timer(getbranchmap(name), title=printname) finally: if old_branch_cache_from_file is not None: branchmap.branch_cache_from_file = old_branch_cache_from_file if branchcacheread is not None: branchcacheread.restore() branchcachewrite.restore() fm.end() @command( b'perf::branchmapupdate|perfbranchmapupdate', [ (b'', b'base', [], b'subset of revision to start from'), (b'', b'target', [], b'subset of revision to end with'), (b'', b'clear-caches', False, b'clear cache between each runs'), ] + formatteropts, ) def perfbranchmapupdate(ui, repo, base=(), target=(), **opts): """benchmark branchmap update from for <base> revs to <target> revs If `--clear-caches` is passed, the following items will be reset before each update: * the changelog instance and associated indexes * the rev-branch-cache instance Examples: # update for the one last revision $ hg perfbranchmapupdate --base 'not tip' --target 'tip' $ update for change coming with a new branch $ hg perfbranchmapupdate --base 'stable' --target 'default' """ from mercurial import branchmap from mercurial import repoview opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) clearcaches = opts[b'clear_caches'] unfi = repo.unfiltered() x = [None] # used to pass data between closure # we use a `list` here to avoid possible side effect from smartset baserevs = list(scmutil.revrange(repo, base)) targetrevs = list(scmutil.revrange(repo, target)) if not baserevs: raise error.Abort(b'no revisions selected for --base') if not targetrevs: raise error.Abort(b'no revisions selected for --target') # make sure the target branchmap also contains the one in the base targetrevs = list(set(baserevs) | set(targetrevs)) targetrevs.sort() cl = repo.changelog allbaserevs = list(cl.ancestors(baserevs, inclusive=True)) allbaserevs.sort() alltargetrevs = frozenset(cl.ancestors(targetrevs, inclusive=True)) newrevs = list(alltargetrevs.difference(allbaserevs)) newrevs.sort() allrevs = frozenset(unfi.changelog.revs()) basefilterrevs = frozenset(allrevs.difference(allbaserevs)) targetfilterrevs = frozenset(allrevs.difference(alltargetrevs)) def basefilter(repo, visibilityexceptions=None): return basefilterrevs def targetfilter(repo, visibilityexceptions=None): return targetfilterrevs msg = b'benchmark of branchmap with %d revisions with %d new ones\n' ui.status(msg % (len(allbaserevs), len(newrevs))) if targetfilterrevs: msg = b'(%d revisions still filtered)\n' ui.status(msg % len(targetfilterrevs)) try: repoview.filtertable[b'__perf_branchmap_update_base'] = basefilter repoview.filtertable[b'__perf_branchmap_update_target'] = targetfilter baserepo = repo.filtered(b'__perf_branchmap_update_base') targetrepo = repo.filtered(b'__perf_branchmap_update_target') bcache = repo.branchmap() copy_method = 'copy' copy_base_kwargs = copy_base_kwargs = {} if hasattr(bcache, 'copy'): if 'repo' in getargspec(bcache.copy).args: copy_base_kwargs = {"repo": baserepo} copy_target_kwargs = {"repo": targetrepo} else: copy_method = 'inherit_for' copy_base_kwargs = {"repo": baserepo} copy_target_kwargs = {"repo": targetrepo} # try to find an existing branchmap to reuse subsettable = getbranchmapsubsettable() candidatefilter = subsettable.get(None) while candidatefilter is not None: candidatebm = repo.filtered(candidatefilter).branchmap() if candidatebm.validfor(baserepo): filtered = repoview.filterrevs(repo, candidatefilter) missing = [r for r in allbaserevs if r in filtered] base = getattr(candidatebm, copy_method)(**copy_base_kwargs) base.update(baserepo, missing) break candidatefilter = subsettable.get(candidatefilter) else: # no suitable subset where found base = branchmap.branchcache() base.update(baserepo, allbaserevs) def setup(): x[0] = getattr(base, copy_method)(**copy_target_kwargs) if clearcaches: unfi._revbranchcache = None clearchangelog(repo) def bench(): x[0].update(targetrepo, newrevs) timer(bench, setup=setup) fm.end() finally: repoview.filtertable.pop(b'__perf_branchmap_update_base', None) repoview.filtertable.pop(b'__perf_branchmap_update_target', None) @command( b'perf::branchmapload|perfbranchmapload', [ (b'f', b'filter', b'', b'Specify repoview filter'), (b'', b'list', False, b'List brachmap filter caches'), (b'', b'clear-revlogs', False, b'refresh changelog and manifest'), ] + formatteropts, ) def perfbranchmapload(ui, repo, filter=b'', list=False, **opts): """benchmark reading the branchmap""" opts = _byteskwargs(opts) clearrevlogs = opts[b'clear_revlogs'] if list: for name, kind, st in repo.cachevfs.readdir(stat=True): if name.startswith(b'branch2'): filtername = name.partition(b'-')[2] or b'unfiltered' ui.status( b'%s - %s\n' % (filtername, util.bytecount(st.st_size)) ) return if not filter: filter = None subsettable = getbranchmapsubsettable() if filter is None: repo = repo.unfiltered() else: repo = repoview.repoview(repo, filter) repo.branchmap() # make sure we have a relevant, up to date branchmap fromfile = getattr(branchmap, 'branch_cache_from_file', None) if fromfile is None: fromfile = getattr(branchmap.branchcache, 'fromfile', None) if fromfile is None: fromfile = branchmap.read currentfilter = filter # try once without timer, the filter may not be cached while fromfile(repo) is None: currentfilter = subsettable.get(currentfilter) if currentfilter is None: raise error.Abort( b'No branchmap cached for %s repo' % (filter or b'unfiltered') ) repo = repo.filtered(currentfilter) timer, fm = gettimer(ui, opts) def setup(): if clearrevlogs: clearchangelog(repo) def bench(): fromfile(repo) timer(bench, setup=setup) fm.end() @command(b'perf::loadmarkers|perfloadmarkers') def perfloadmarkers(ui, repo): """benchmark the time to parse the on-disk markers for a repo Result is the number of markers in the repo.""" timer, fm = gettimer(ui) svfs = getsvfs(repo) timer(lambda: len(obsolete.obsstore(repo, svfs))) fm.end() @command( b'perf::lrucachedict|perflrucachedict', formatteropts + [ (b'', b'costlimit', 0, b'maximum total cost of items in cache'), (b'', b'mincost', 0, b'smallest cost of items in cache'), (b'', b'maxcost', 100, b'maximum cost of items in cache'), (b'', b'size', 4, b'size of cache'), (b'', b'gets', 10000, b'number of key lookups'), (b'', b'sets', 10000, b'number of key sets'), (b'', b'mixed', 10000, b'number of mixed mode operations'), ( b'', b'mixedgetfreq', 50, b'frequency of get vs set ops in mixed mode', ), ], norepo=True, ) def perflrucache( ui, mincost=0, maxcost=100, costlimit=0, size=4, gets=10000, sets=10000, mixed=10000, mixedgetfreq=50, **opts ): opts = _byteskwargs(opts) def doinit(): for i in _xrange(10000): util.lrucachedict(size) costrange = list(range(mincost, maxcost + 1)) values = [] for i in _xrange(size): values.append(random.randint(0, _maxint)) # Get mode fills the cache and tests raw lookup performance with no # eviction. getseq = [] for i in _xrange(gets): getseq.append(random.choice(values)) def dogets(): d = util.lrucachedict(size) for v in values: d[v] = v for key in getseq: value = d[key] value # silence pyflakes warning def dogetscost(): d = util.lrucachedict(size, maxcost=costlimit) for i, v in enumerate(values): d.insert(v, v, cost=costs[i]) for key in getseq: try: value = d[key] value # silence pyflakes warning except KeyError: pass # Set mode tests insertion speed with cache eviction. setseq = [] costs = [] for i in _xrange(sets): setseq.append(random.randint(0, _maxint)) costs.append(random.choice(costrange)) def doinserts(): d = util.lrucachedict(size) for v in setseq: d.insert(v, v) def doinsertscost(): d = util.lrucachedict(size, maxcost=costlimit) for i, v in enumerate(setseq): d.insert(v, v, cost=costs[i]) def dosets(): d = util.lrucachedict(size) for v in setseq: d[v] = v # Mixed mode randomly performs gets and sets with eviction. mixedops = [] for i in _xrange(mixed): r = random.randint(0, 100) if r < mixedgetfreq: op = 0 else: op = 1 mixedops.append( (op, random.randint(0, size * 2), random.choice(costrange)) ) def domixed(): d = util.lrucachedict(size) for op, v, cost in mixedops: if op == 0: try: d[v] except KeyError: pass else: d[v] = v def domixedcost(): d = util.lrucachedict(size, maxcost=costlimit) for op, v, cost in mixedops: if op == 0: try: d[v] except KeyError: pass else: d.insert(v, v, cost=cost) benches = [ (doinit, b'init'), ] if costlimit: benches.extend( [ (dogetscost, b'gets w/ cost limit'), (doinsertscost, b'inserts w/ cost limit'), (domixedcost, b'mixed w/ cost limit'), ] ) else: benches.extend( [ (dogets, b'gets'), (doinserts, b'inserts'), (dosets, b'sets'), (domixed, b'mixed'), ] ) for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command( b'perf::write|perfwrite', formatteropts + [ (b'', b'write-method', b'write', b'ui write method'), (b'', b'nlines', 100, b'number of lines'), (b'', b'nitems', 100, b'number of items (per line)'), (b'', b'item', b'x', b'item that is written'), (b'', b'batch-line', None, b'pass whole line to write method at once'), (b'', b'flush-line', None, b'flush after each line'), ], ) def perfwrite(ui, repo, **opts): """microbenchmark ui.write (and others)""" opts = _byteskwargs(opts) write = getattr(ui, _sysstr(opts[b'write_method'])) nlines = int(opts[b'nlines']) nitems = int(opts[b'nitems']) item = opts[b'item'] batch_line = opts.get(b'batch_line') flush_line = opts.get(b'flush_line') if batch_line: line = item * nitems + b'\n' def benchmark(): for i in pycompat.xrange(nlines): if batch_line: write(line) else: for i in pycompat.xrange(nitems): write(item) write(b'\n') if flush_line: ui.flush() ui.flush() timer, fm = gettimer(ui, opts) timer(benchmark) fm.end() def uisetup(ui): if util.safehasattr(cmdutil, b'openrevlog') and not util.safehasattr( commands, b'debugrevlogopts' ): # for "historical portability": # In this case, Mercurial should be 1.9 (or a79fea6b3e77) - # 3.7 (or 5606f7d0d063). Therefore, '--dir' option for # openrevlog() should cause failure, because it has been # available since 3.5 (or 49c583ca48c4). def openrevlog(orig, repo, cmd, file_, opts): if opts.get(b'dir') and not util.safehasattr(repo, b'dirlog'): raise error.Abort( b"This version doesn't support --dir option", hint=b"use 3.5 or later", ) return orig(repo, cmd, file_, opts) name = _sysstr(b'openrevlog') extensions.wrapfunction(cmdutil, name, openrevlog) @command( b'perf::progress|perfprogress', formatteropts + [ (b'', b'topic', b'topic', b'topic for progress messages'), (b'c', b'total', 1000000, b'total value we are progressing to'), ], norepo=True, ) def perfprogress(ui, topic=None, total=None, **opts): """printing of progress bars""" opts = _byteskwargs(opts) timer, fm = gettimer(ui, opts) def doprogress(): with ui.makeprogress(topic, total=total) as progress: for i in _xrange(total): progress.increment() timer(doprogress) fm.end()