Mercurial > hg
view contrib/perf.py @ 35467:d6cfa722b044
templater: look up mapping table through template engine
These functions are stub for symbol/resource separation. This series is
intended to address the following problems:
a) internal data may be exposed to user (issue5699)
b) defaults['repo'] (a repository name) will conflict with mapping['repo']
(a repo object) in hgweb
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Thu, 21 Dec 2017 21:03:25 +0900 |
parents | da91e7309daf |
children | af25237be091 |
line wrap: on
line source
# perf.py - performance test routines '''helper extension to measure performance''' # "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 from __future__ import absolute_import import functools import gc import os import random import struct import sys import time from mercurial import ( changegroup, cmdutil, commands, copies, error, extensions, mdiff, merge, revlog, 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 import scmutil # since 1.9 (or 8b252e826c68) except ImportError: pass # 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, 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 == '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", [ ('c', 'changelog', False, ('open changelog')), ('m', 'manifest', False, ('open manifest')), ('', 'dir', False, ('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.lstrip("^").split("|") if safehasattr(registrar, 'command'): command = registrar.command(cmdtable) elif safehasattr(cmdutil, 'command'): import inspect command = cmdutil.command(cmdtable) if 'norepo' not in inspect.getargspec(command)[0]: # 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 += ' %s' % ' '.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 += ' %s' % ' '.join(parsealiases(name)) return func return decorator try: import mercurial.registrar import mercurial.configitems configtable = {} configitem = mercurial.registrar.configitem(configtable) configitem('perf', 'presleep', default=mercurial.configitems.dynamicdefault, ) configitem('perf', 'stub', default=mercurial.configitems.dynamicdefault, ) configitem('perf', 'parentscount', default=mercurial.configitems.dynamicdefault, ) except (ImportError, AttributeError): pass def getlen(ui): if ui.configbool("perf", "stub", False): return lambda x: 1 return len 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, "perf", "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, '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('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(object): """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, 'perf', opts) # stub function, runs code only once instead of in a loop # experimental config: perf.stub if ui.configbool("perf", "stub", False): return functools.partial(stub_timer, fm), fm return functools.partial(_timer, fm), fm def stub_timer(fm, func, title=None): func() def _timer(fm, func, title=None): gc.collect() results = [] begin = util.timer() count = 0 while True: ostart = os.times() cstart = util.timer() r = func() cstop = util.timer() ostop = os.times() count += 1 a, b = ostart, ostop results.append((cstop - cstart, b[0] - a[0], b[1]-a[1])) if cstop - begin > 3 and count >= 100: break if cstop - begin > 10 and count >= 3: break fm.startitem() if title: fm.write('title', '! %s\n', title) if r: fm.write('result', '! result: %s\n', r) m = min(results) fm.plain('!') fm.write('wall', ' wall %f', m[0]) fm.write('comb', ' comb %f', m[1] + m[2]) fm.write('user', ' user %f', m[1]) fm.write('sys', ' sys %f', m[2]) fm.write('count', ' (best of %d)', count) fm.plain('\n') # 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(("%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(("missing attribute %s of %s might break assumption" " of performance measurement") % (name, obj)) origvalue = getattr(obj, name) class attrutil(object): def set(self, newvalue): setattr(obj, name, newvalue) def restore(self): setattr(obj, 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) for mod in (branchmap, repoview): 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(("perfbranchmap not available with this Mercurial"), hint="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, '_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, '_tags', ignoremissing=True) if repotags: # since 1.4 (or 5614a628d173) return lambda : repotags.set(None) repotagscache = safeattrsetter(repo, '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(("tags API of this hg command is unknown")) # utilities to clear cache def clearfilecache(repo, attrname): unfi = repo.unfiltered() if attrname in vars(unfi): delattr(unfi, attrname) unfi._filecache.pop(attrname, None) # perf commands @command('perfwalk', formatteropts) def perfwalk(ui, repo, *pats, **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('perfannotate', formatteropts) def perfannotate(ui, repo, f, **opts): timer, fm = gettimer(ui, opts) fc = repo['.'][f] timer(lambda: len(fc.annotate(True))) fm.end() @command('perfstatus', [('u', 'unknown', False, 'ask status to look for unknown files')] + formatteropts) def perfstatus(ui, repo, **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) timer(lambda: sum(map(len, repo.status(unknown=opts['unknown'])))) fm.end() @command('perfaddremove', formatteropts) def perfaddremove(ui, repo, **opts): timer, fm = gettimer(ui, opts) try: oldquiet = repo.ui.quiet repo.ui.quiet = True matcher = scmutil.match(repo[None]) timer(lambda: scmutil.addremove(repo, matcher, "", dry_run=True)) finally: repo.ui.quiet = oldquiet fm.end() def clearcaches(cl): # behave somewhat consistently across internal API changes if util.safehasattr(cl, 'clearcaches'): cl.clearcaches() elif util.safehasattr(cl, '_nodecache'): from mercurial.node import nullid, nullrev cl._nodecache = {nullid: nullrev} cl._nodepos = None @command('perfheads', formatteropts) def perfheads(ui, repo, **opts): timer, fm = gettimer(ui, opts) cl = repo.changelog def d(): len(cl.headrevs()) clearcaches(cl) timer(d) fm.end() @command('perftags', formatteropts) def perftags(ui, repo, **opts): import mercurial.changelog import mercurial.manifest timer, fm = gettimer(ui, opts) svfs = getsvfs(repo) repocleartagscache = repocleartagscachefunc(repo) def t(): repo.changelog = mercurial.changelog.changelog(svfs) repo.manifestlog = mercurial.manifest.manifestlog(svfs, repo) repocleartagscache() return len(repo.tags()) timer(t) fm.end() @command('perfancestors', formatteropts) def perfancestors(ui, repo, **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('perfancestorset', formatteropts) def perfancestorset(ui, repo, revset, **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('perfbookmarks', formatteropts) def perfbookmarks(ui, repo, **opts): """benchmark parsing bookmarks from disk to memory""" timer, fm = gettimer(ui, opts) def d(): clearfilecache(repo, '_bookmarks') repo._bookmarks timer(d) fm.end() @command('perfbundleread', formatteropts, '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, ) def makebench(fn): def run(): with open(bundlepath, 'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) fn(bundle) return run def makereadnbytes(size): def run(): with open(bundlepath, 'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) while bundle.read(size): pass return run def makestdioread(size): def run(): with open(bundlepath, '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, 'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) for part in bundle.iterparts(): while part.read(size): pass return run benches = [ (makestdioread(8192), 'read(8k)'), (makestdioread(16384), 'read(16k)'), (makestdioread(32768), 'read(32k)'), (makestdioread(131072), 'read(128k)'), ] with open(bundlepath, 'rb') as fh: bundle = exchange.readbundle(ui, fh, bundlepath) if isinstance(bundle, changegroup.cg1unpacker): benches.extend([ (makebench(deltaiter), 'cg1 deltaiter()'), (makebench(iterchunks), 'cg1 getchunks()'), (makereadnbytes(8192), 'cg1 read(8k)'), (makereadnbytes(16384), 'cg1 read(16k)'), (makereadnbytes(32768), 'cg1 read(32k)'), (makereadnbytes(131072), 'cg1 read(128k)'), ]) elif isinstance(bundle, bundle2.unbundle20): benches.extend([ (makebench(forwardchunks), 'bundle2 forwardchunks()'), (makebench(iterparts), 'bundle2 iterparts()'), (makebench(iterpartsseekable), 'bundle2 iterparts() seekable'), (makebench(seek), 'bundle2 part seek()'), (makepartreadnbytes(8192), 'bundle2 part read(8k)'), (makepartreadnbytes(16384), 'bundle2 part read(16k)'), (makepartreadnbytes(32768), 'bundle2 part read(32k)'), (makepartreadnbytes(131072), 'bundle2 part read(128k)'), ]) elif isinstance(bundle, streamclone.streamcloneapplier): raise error.Abort('stream clone bundles not supported') else: raise error.Abort('unhandled bundle type: %s' % type(bundle)) for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command('perfchangegroupchangelog', formatteropts + [('', 'version', '02', 'changegroup version'), ('r', 'rev', '', 'revisions to add to changegroup')]) def perfchangegroupchangelog(ui, repo, version='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. """ cl = repo.changelog revs = [cl.lookup(r) for r in repo.revs(rev or 'all()')] bundler = changegroup.getbundler(version, repo) def lookup(node): # The real bundler reads the revision in order to access the # manifest node and files list. Do that here. cl.read(node) return node def d(): for chunk in bundler.group(revs, cl, lookup): pass timer, fm = gettimer(ui, opts) timer(d) fm.end() @command('perfdirs', formatteropts) def perfdirs(ui, repo, **opts): timer, fm = gettimer(ui, opts) dirstate = repo.dirstate 'a' in dirstate def d(): dirstate.hasdir('a') del dirstate._map._dirs timer(d) fm.end() @command('perfdirstate', formatteropts) def perfdirstate(ui, repo, **opts): timer, fm = gettimer(ui, opts) "a" in repo.dirstate def d(): repo.dirstate.invalidate() "a" in repo.dirstate timer(d) fm.end() @command('perfdirstatedirs', formatteropts) def perfdirstatedirs(ui, repo, **opts): timer, fm = gettimer(ui, opts) "a" in repo.dirstate def d(): repo.dirstate.hasdir("a") del repo.dirstate._map._dirs timer(d) fm.end() @command('perfdirstatefoldmap', formatteropts) def perfdirstatefoldmap(ui, repo, **opts): timer, fm = gettimer(ui, opts) dirstate = repo.dirstate 'a' in dirstate def d(): dirstate._map.filefoldmap.get('a') del dirstate._map.filefoldmap timer(d) fm.end() @command('perfdirfoldmap', formatteropts) def perfdirfoldmap(ui, repo, **opts): timer, fm = gettimer(ui, opts) dirstate = repo.dirstate 'a' in dirstate def d(): dirstate._map.dirfoldmap.get('a') del dirstate._map.dirfoldmap del dirstate._map._dirs timer(d) fm.end() @command('perfdirstatewrite', formatteropts) def perfdirstatewrite(ui, repo, **opts): timer, fm = gettimer(ui, opts) ds = repo.dirstate "a" in ds def d(): ds._dirty = True ds.write(repo.currenttransaction()) timer(d) fm.end() @command('perfmergecalculate', [('r', 'rev', '.', 'rev to merge against')] + formatteropts) def perfmergecalculate(ui, repo, rev, **opts): timer, fm = gettimer(ui, opts) wctx = repo[None] rctx = scmutil.revsingle(repo, rev, rev) ancestor = wctx.ancestor(rctx) # we don't want working dir files to be stat'd in the benchmark, so prime # that cache wctx.dirty() def d(): # acceptremote is True because we don't want prompts in the middle of # our benchmark merge.calculateupdates(repo, wctx, rctx, [ancestor], False, False, acceptremote=True, followcopies=True) timer(d) fm.end() @command('perfpathcopies', [], "REV REV") def perfpathcopies(ui, repo, rev1, rev2, **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('perfphases', [('', 'full', False, 'include file reading time too'), ], "") def perfphases(ui, repo, **opts): """benchmark phasesets computation""" timer, fm = gettimer(ui, opts) _phases = repo._phasecache full = opts.get('full') def d(): phases = _phases if full: clearfilecache(repo, '_phasecache') phases = repo._phasecache phases.invalidate() phases.loadphaserevs(repo) timer(d) fm.end() @command('perfmanifest', [], 'REV') def perfmanifest(ui, repo, rev, **opts): timer, fm = gettimer(ui, opts) ctx = scmutil.revsingle(repo, rev, rev) t = ctx.manifestnode() def d(): repo.manifestlog.clearcaches() repo.manifestlog[t].read() timer(d) fm.end() @command('perfchangeset', formatteropts) def perfchangeset(ui, repo, rev, **opts): timer, fm = gettimer(ui, opts) n = repo[rev].node() def d(): repo.changelog.read(n) #repo.changelog._cache = None timer(d) fm.end() @command('perfindex', formatteropts) def perfindex(ui, repo, **opts): import mercurial.revlog timer, fm = gettimer(ui, opts) mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo["tip"].node() svfs = getsvfs(repo) def d(): cl = mercurial.revlog.revlog(svfs, "00changelog.i") cl.rev(n) timer(d) fm.end() @command('perfstartup', formatteropts) def perfstartup(ui, repo, **opts): timer, fm = gettimer(ui, opts) cmd = sys.argv[0] def d(): if os.name != 'nt': os.system("HGRCPATH= %s version -q > /dev/null" % cmd) else: os.environ['HGRCPATH'] = ' ' os.system("%s version -q > NUL" % cmd) timer(d) fm.end() @command('perfparents', formatteropts) def perfparents(ui, repo, **opts): timer, fm = gettimer(ui, opts) # control the number of commits perfparents iterates over # experimental config: perf.parentscount count = getint(ui, "perf", "parentscount", 1000) if len(repo.changelog) < count: raise error.Abort("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('perfctxfiles', formatteropts) def perfctxfiles(ui, repo, x, **opts): x = int(x) timer, fm = gettimer(ui, opts) def d(): len(repo[x].files()) timer(d) fm.end() @command('perfrawfiles', formatteropts) def perfrawfiles(ui, repo, x, **opts): x = int(x) timer, fm = gettimer(ui, opts) cl = repo.changelog def d(): len(cl.read(x)[3]) timer(d) fm.end() @command('perflookup', formatteropts) def perflookup(ui, repo, rev, **opts): timer, fm = gettimer(ui, opts) timer(lambda: len(repo.lookup(rev))) fm.end() @command('perfrevrange', formatteropts) def perfrevrange(ui, repo, *specs, **opts): timer, fm = gettimer(ui, opts) revrange = scmutil.revrange timer(lambda: len(revrange(repo, specs))) fm.end() @command('perfnodelookup', formatteropts) def perfnodelookup(ui, repo, rev, **opts): timer, fm = gettimer(ui, opts) import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo[rev].node() cl = mercurial.revlog.revlog(getsvfs(repo), "00changelog.i") def d(): cl.rev(n) clearcaches(cl) timer(d) fm.end() @command('perflog', [('', 'rename', False, 'ask log to follow renames')] + formatteropts) def perflog(ui, repo, rev=None, **opts): if rev is None: rev=[] timer, fm = gettimer(ui, opts) ui.pushbuffer() timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', copies=opts.get('rename'))) ui.popbuffer() fm.end() @command('perfmoonwalk', formatteropts) def perfmoonwalk(ui, repo, **opts): """benchmark walking the changelog backwards This also loads the changelog data for each revision in the changelog. """ timer, fm = gettimer(ui, opts) def moonwalk(): for i in xrange(len(repo), -1, -1): ctx = repo[i] ctx.branch() # read changelog data (in addition to the index) timer(moonwalk) fm.end() @command('perftemplating', formatteropts) def perftemplating(ui, repo, rev=None, **opts): if rev is None: rev=[] timer, fm = gettimer(ui, opts) ui.pushbuffer() timer(lambda: commands.log(ui, repo, rev=rev, date='', user='', template='{date|shortdate} [{rev}:{node|short}]' ' {author|person}: {desc|firstline}\n')) ui.popbuffer() fm.end() @command('perfcca', formatteropts) def perfcca(ui, repo, **opts): timer, fm = gettimer(ui, opts) timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) fm.end() @command('perffncacheload', formatteropts) def perffncacheload(ui, repo, **opts): timer, fm = gettimer(ui, opts) s = repo.store def d(): s.fncache._load() timer(d) fm.end() @command('perffncachewrite', formatteropts) def perffncachewrite(ui, repo, **opts): timer, fm = gettimer(ui, opts) s = repo.store s.fncache._load() lock = repo.lock() tr = repo.transaction('perffncachewrite') def d(): s.fncache._dirty = True s.fncache.write(tr) timer(d) tr.close() lock.release() fm.end() @command('perffncacheencode', formatteropts) def perffncacheencode(ui, repo, **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() @command('perfbdiff', revlogopts + formatteropts + [ ('', 'count', 1, 'number of revisions to test (when using --startrev)'), ('', 'alldata', False, 'test bdiffs for all associated revisions')], '-c|-m|FILE REV') def perfbdiff(ui, repo, file_, rev=None, count=None, **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). """ if opts['alldata']: opts['changelog'] = True if opts.get('changelog') or opts.get('manifest'): file_, rev = None, file_ elif rev is None: raise error.CommandError('perfbdiff', 'invalid arguments') textpairs = [] r = cmdutil.openrevlog(repo, 'perfbdiff', file_, opts) startrev = r.rev(r.lookup(rev)) for rev in range(startrev, min(startrev + count, len(r) - 1)): if opts['alldata']: # Load revisions associated with changeset. ctx = repo[rev] mtext = repo.manifestlog._revlog.revision(ctx.manifestnode()) for pctx in ctx.parents(): pman = repo.manifestlog._revlog.revision(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 pair in textpairs: mdiff.textdiff(*pair) timer, fm = gettimer(ui, opts) timer(d) fm.end() @command('perfdiffwd', formatteropts) def perfdiffwd(ui, repo, **opts): """Profile diff of working directory changes""" 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 = dict((options[c], '1') for c in diffopt) def d(): ui.pushbuffer() commands.diff(ui, repo, **opts) ui.popbuffer() title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none') timer(d, title) fm.end() @command('perfrevlogindex', revlogopts + formatteropts, '-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. """ rl = cmdutil.openrevlog(repo, 'perfrevlogindex', file_, opts) opener = getattr(rl, 'opener') # trick linter indexfile = rl.indexfile data = opener.read(indexfile) header = struct.unpack('>I', data[0:4])[0] version = header & 0xFFFF if version == 1: revlogio = revlog.revlogio() inline = header & (1 << 16) else: raise error.Abort(('unsupported revlog version: %d') % version) 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(): revlog.revlog(opener, indexfile) def read(): with opener(indexfile) as fh: fh.read() def parseindex(): revlogio.parseindex(data, inline) def getentry(revornode): index = revlogio.parseindex(data, inline)[0] index[revornode] def getentries(revs, count=1): index = revlogio.parseindex(data, inline)[0] for i in range(count): for rev in revs: index[rev] def resolvenode(node): nodemap = revlogio.parseindex(data, inline)[1] # This only works for the C code. if nodemap is None: return try: nodemap[node] except error.RevlogError: pass def resolvenodes(nodes, count=1): nodemap = revlogio.parseindex(data, inline)[1] if nodemap is None: return for i in range(count): for node in nodes: try: nodemap[node] except error.RevlogError: pass benches = [ (constructor, 'revlog constructor'), (read, 'read'), (parseindex, 'create index object'), (lambda: getentry(0), 'retrieve index entry for rev 0'), (lambda: resolvenode('a' * 20), 'look up missing node'), (lambda: resolvenode(node0), 'look up node at rev 0'), (lambda: resolvenode(node25), 'look up node at 1/4 len'), (lambda: resolvenode(node50), 'look up node at 1/2 len'), (lambda: resolvenode(node75), 'look up node at 3/4 len'), (lambda: resolvenode(node100), 'look up node at tip'), # 2x variation is to measure caching impact. (lambda: resolvenodes(allnodes), 'look up all nodes (forward)'), (lambda: resolvenodes(allnodes, 2), 'look up all nodes 2x (forward)'), (lambda: resolvenodes(allnodesrev), 'look up all nodes (reverse)'), (lambda: resolvenodes(allnodesrev, 2), 'look up all nodes 2x (reverse)'), (lambda: getentries(allrevs), 'retrieve all index entries (forward)'), (lambda: getentries(allrevs, 2), 'retrieve all index entries 2x (forward)'), (lambda: getentries(allrevsrev), 'retrieve all index entries (reverse)'), (lambda: getentries(allrevsrev, 2), 'retrieve all index entries 2x (reverse)'), ] for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command('perfrevlogrevisions', revlogopts + formatteropts + [('d', 'dist', 100, 'distance between the revisions'), ('s', 'startrev', 0, 'revision to start reading at'), ('', 'reverse', False, 'read in reverse')], '-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``. """ rl = cmdutil.openrevlog(repo, 'perfrevlogrevisions', file_, opts) rllen = getlen(ui)(rl) def d(): rl.clearcaches() beginrev = startrev endrev = rllen dist = opts['dist'] if reverse: beginrev, endrev = endrev, beginrev 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('perfrevlogchunks', revlogopts + formatteropts + [('e', 'engines', '', 'compression engines to use'), ('s', 'startrev', 0, 'revision to start at')], '-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``. """ rl = cmdutil.openrevlog(repo, 'perfrevlogchunks', file_, opts) # _chunkraw was renamed to _getsegmentforrevs. try: segmentforrevs = rl._getsegmentforrevs except AttributeError: segmentforrevs = rl._chunkraw # Verify engines argument. if engines: engines = set(e.strip() for e in engines.split(',')) for engine in engines: try: util.compressionengines[engine] except KeyError: raise error.Abort('unknown compression engine: %s' % engine) else: engines = [] for e in util.compengines: engine = util.compengines[e] try: if engine.available(): engine.revlogcompressor().compress('dummy') engines.append(e) except NotImplementedError: pass revs = list(rl.revs(startrev, len(rl) - 1)) def rlfh(rl): if rl._inline: return getsvfs(repo)(rl.indexfile) else: return getsvfs(repo)(rl.datafile) def doread(): rl.clearcaches() for rev in revs: segmentforrevs(rev, rev) def doreadcachedfh(): rl.clearcaches() fh = rlfh(rl) for rev in revs: segmentforrevs(rev, rev, df=fh) def doreadbatch(): rl.clearcaches() segmentforrevs(revs[0], revs[-1]) def doreadbatchcachedfh(): rl.clearcaches() fh = rlfh(rl) segmentforrevs(revs[0], revs[-1], df=fh) def dochunk(): rl.clearcaches() fh = rlfh(rl) for rev in revs: rl._chunk(rev, df=fh) chunks = [None] def dochunkbatch(): rl.clearcaches() fh = rlfh(rl) # Save chunks as a side-effect. chunks[0] = rl._chunks(revs, df=fh) def docompress(compressor): rl.clearcaches() try: # Swap in the requested compression engine. oldcompressor = rl._compressor rl._compressor = compressor for chunk in chunks[0]: rl.compress(chunk) finally: rl._compressor = oldcompressor benches = [ (lambda: doread(), 'read'), (lambda: doreadcachedfh(), 'read w/ reused fd'), (lambda: doreadbatch(), 'read batch'), (lambda: doreadbatchcachedfh(), 'read batch w/ reused fd'), (lambda: dochunk(), 'chunk'), (lambda: dochunkbatch(), 'chunk batch'), ] for engine in sorted(engines): compressor = util.compengines[engine].revlogcompressor() benches.append((functools.partial(docompress, compressor), 'compress w/ %s' % engine)) for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command('perfrevlogrevision', revlogopts + formatteropts + [('', 'cache', False, 'use caches instead of clearing')], '-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. Obtain the raw chunks for that delta chain 3. Decompress each raw chunk 4. Apply binary patches to obtain fulltext 5. Verify hash of fulltext This command measures the time spent in each of these phases. """ if opts.get('changelog') or opts.get('manifest'): file_, rev = None, file_ elif rev is None: raise error.CommandError('perfrevlogrevision', 'invalid arguments') r = cmdutil.openrevlog(repo, 'perfrevlogrevision', file_, opts) # _chunkraw was renamed to _getsegmentforrevs. try: segmentforrevs = r._getsegmentforrevs except AttributeError: segmentforrevs = r._chunkraw node = r.lookup(rev) rev = r.rev(node) def getrawchunks(data, chain): start = r.start length = r.length inline = r._inline iosize = r._io.size buffer = util.buffer offset = start(chain[0]) chunks = [] ladd = chunks.append for rev in chain: chunkstart = start(rev) if inline: chunkstart += (rev + 1) * iosize chunklength = length(rev) ladd(buffer(data, chunkstart - offset, chunklength)) return chunks def dodeltachain(rev): if not cache: r.clearcaches() r._deltachain(rev) def doread(chain): if not cache: r.clearcaches() segmentforrevs(chain[0], chain[-1]) 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) chain = r._deltachain(rev)[0] data = segmentforrevs(chain[0], chain[-1])[1] rawchunks = getrawchunks(data, chain) bins = r._chunks(chain) text = str(bins[0]) bins = bins[1:] text = mdiff.patches(text, bins) benches = [ (lambda: dorevision(), 'full'), (lambda: dodeltachain(rev), 'deltachain'), (lambda: doread(chain), 'read'), (lambda: dorawchunks(data, chain), 'rawchunks'), (lambda: dodecompress(rawchunks), 'decompress'), (lambda: dopatch(text, bins), 'patch'), (lambda: dohash(text), 'hash'), ] for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command('perfrevset', [('C', 'clear', False, 'clear volatile cache between each call.'), ('', 'contexts', False, 'obtain changectx for each revision')] + formatteropts, "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.""" 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('perfvolatilesets', [('', 'clear-obsstore', False, '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.""" timer, fm = gettimer(ui, opts) repo = repo.unfiltered() def getobs(name): def d(): repo.invalidatevolatilesets() if opts['clear_obsstore']: clearfilecache(repo, '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['clear_obsstore']: clearfilecache(repo, '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('perfbranchmap', [('f', 'full', False, 'Includes build time of subset'), ('', 'clear-revbranch', False, 'purge the revbranch cache between computation'), ] + formatteropts) def perfbranchmap(ui, repo, full=False, clear_revbranch=False, **opts): """benchmark the update of a branchmap This benchmarks the full repo.branchmap() call with read and write disabled """ 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) def d(): if clear_revbranch: repo.revbranchcache()._clear() if full: view._branchcaches.clear() else: view._branchcaches.pop(filtername, None) view.branchmap() return d # add filter in smaller subset to bigger subset possiblefilters = set(repoview.filtertable) subsettable = getbranchmapsubsettable() allfilters = [] while possiblefilters: for name in possiblefilters: subset = subsettable.get(name) if subset not in possiblefilters: break else: assert False, 'subset cycle %s!' % possiblefilters allfilters.append(name) possiblefilters.remove(name) # warm the cache if not full: for name in allfilters: repo.filtered(name).branchmap() # add unfiltered allfilters.append(None) branchcacheread = safeattrsetter(branchmap, 'read') branchcachewrite = safeattrsetter(branchmap.branchcache, 'write') branchcacheread.set(lambda repo: None) branchcachewrite.set(lambda bc, repo: None) try: for name in allfilters: timer(getbranchmap(name), title=str(name)) finally: branchcacheread.restore() branchcachewrite.restore() fm.end() @command('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(svfs))) fm.end() @command('perflrucachedict', formatteropts + [('', 'size', 4, 'size of cache'), ('', 'gets', 10000, 'number of key lookups'), ('', 'sets', 10000, 'number of key sets'), ('', 'mixed', 10000, 'number of mixed mode operations'), ('', 'mixedgetfreq', 50, 'frequency of get vs set ops in mixed mode')], norepo=True) def perflrucache(ui, size=4, gets=10000, sets=10000, mixed=10000, mixedgetfreq=50, **opts): def doinit(): for i in xrange(10000): util.lrucachedict(size) values = [] for i in xrange(size): values.append(random.randint(0, sys.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 # Set mode tests insertion speed with cache eviction. setseq = [] for i in xrange(sets): setseq.append(random.randint(0, sys.maxint)) 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))) def domixed(): d = util.lrucachedict(size) for op, v in mixedops: if op == 0: try: d[v] except KeyError: pass else: d[v] = v benches = [ (doinit, 'init'), (dogets, 'gets'), (dosets, 'sets'), (domixed, 'mixed') ] for fn, title in benches: timer, fm = gettimer(ui, opts) timer(fn, title=title) fm.end() @command('perfwrite', formatteropts) def perfwrite(ui, repo, **opts): """microbenchmark ui.write """ timer, fm = gettimer(ui, opts) def write(): for i in range(100000): ui.write(('Testing write performance\n')) timer(write) fm.end() def uisetup(ui): if (util.safehasattr(cmdutil, 'openrevlog') and not util.safehasattr(commands, '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('dir') and not util.safehasattr(repo, 'dirlog'): raise error.Abort("This version doesn't support --dir option", hint="use 3.5 or later") return orig(repo, cmd, file_, opts) extensions.wrapfunction(cmdutil, 'openrevlog', openrevlog)