Mercurial > hg
view contrib/perf.py @ 18338:384df4db6520
merge: merge file flags together with file content
The 'x' flag and the 'l' flag are very different. It is usually not a problem
to change the 'x' flag of a normal file independent of the content, but one
does not simply change the type of a file to 'l' independent of the content.
This removes the fmerge function that merged both 'x' and 'l' independent of
content early in the merge process. This correctly introduces some conflicts
instead of silent incorrect merges. 3-way flag merge will now be done in the
resolve process, right next to file content merge. Conflicts can thus be
resolved with (slightly inconvenient) resolve commands like 'resolve f --tool
internal:other'. It thus brings us closer to be able to re-solve manifest merge
after the merge and avoid prompts during merge.
This also removes the "conflicting flags for a - (n)one, e(x)ec or sym(l)ink?"
prompt that nobody could answer and that made it easy to mix symlink targets
and file contents up. Instead it will give a file merge where a sufficiently
clever merge tool can help resolving the issue.
author | Mads Kiilerich <mads@kiilerich.com> |
---|---|
date | Wed, 09 Jan 2013 02:02:45 +0100 |
parents | 9b6ae29d4801 |
children | 3e92772d5383 |
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# perf.py - performance test routines '''helper extension to measure performance''' from mercurial import cmdutil, scmutil, util, match, commands, obsolete from mercurial import repoview, branchmap import time, os, sys cmdtable = {} command = cmdutil.command(cmdtable) def timer(func, title=None): results = [] begin = time.time() count = 0 while True: ostart = os.times() cstart = time.time() r = func() cstop = time.time() 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 if title: sys.stderr.write("! %s\n" % title) if r: sys.stderr.write("! result: %s\n" % r) m = min(results) sys.stderr.write("! wall %f comb %f user %f sys %f (best of %d)\n" % (m[0], m[1] + m[2], m[1], m[2], count)) @command('perfwalk') def perfwalk(ui, repo, *pats): try: m = scmutil.match(repo[None], pats, {}) timer(lambda: len(list(repo.dirstate.walk(m, [], True, False)))) except Exception: try: m = scmutil.match(repo[None], pats, {}) timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)])) except Exception: timer(lambda: len(list(cmdutil.walk(repo, pats, {})))) @command('perfstatus', [('u', 'unknown', False, 'ask status to look for unknown files')]) 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(lambda: sum(map(len, repo.status(**opts)))) 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') def perfheads(ui, repo): cl = repo.changelog def d(): len(cl.headrevs()) clearcaches(cl) timer(d) @command('perftags') def perftags(ui, repo): import mercurial.changelog, mercurial.manifest def t(): repo.changelog = mercurial.changelog.changelog(repo.sopener) repo.manifest = mercurial.manifest.manifest(repo.sopener) repo._tags = None return len(repo.tags()) timer(t) @command('perfancestors') def perfancestors(ui, repo): heads = repo.changelog.headrevs() def d(): for a in repo.changelog.ancestors(heads): pass timer(d) @command('perfancestorset') def perfancestorset(ui, repo, revset): revs = repo.revs(revset) heads = repo.changelog.headrevs() def d(): s = repo.changelog.ancestors(heads) for rev in revs: rev in s timer(d) @command('perfdirstate') def perfdirstate(ui, repo): "a" in repo.dirstate def d(): repo.dirstate.invalidate() "a" in repo.dirstate timer(d) @command('perfdirstatedirs') def perfdirstatedirs(ui, repo): "a" in repo.dirstate def d(): "a" in repo.dirstate._dirs del repo.dirstate._dirs timer(d) @command('perfdirstatewrite') def perfdirstatewrite(ui, repo): ds = repo.dirstate "a" in ds def d(): ds._dirty = True ds.write() timer(d) @command('perfmanifest') def perfmanifest(ui, repo): def d(): t = repo.manifest.tip() m = repo.manifest.read(t) repo.manifest.mapcache = None repo.manifest._cache = None timer(d) @command('perfchangeset') def perfchangeset(ui, repo, rev): n = repo[rev].node() def d(): c = repo.changelog.read(n) #repo.changelog._cache = None timer(d) @command('perfindex') def perfindex(ui, repo): import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo["tip"].node() def d(): cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i") cl.rev(n) timer(d) @command('perfstartup') def perfstartup(ui, repo): cmd = sys.argv[0] def d(): os.system("HGRCPATH= %s version -q > /dev/null" % cmd) timer(d) @command('perfparents') def perfparents(ui, repo): nl = [repo.changelog.node(i) for i in xrange(1000)] def d(): for n in nl: repo.changelog.parents(n) timer(d) @command('perflookup') def perflookup(ui, repo, rev): timer(lambda: len(repo.lookup(rev))) @command('perfrevrange') def perfrevrange(ui, repo, *specs): revrange = scmutil.revrange timer(lambda: len(revrange(repo, specs))) @command('perfnodelookup') def perfnodelookup(ui, repo, rev): import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo[rev].node() cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i") def d(): cl.rev(n) clearcaches(cl) timer(d) @command('perflog', [('', 'rename', False, 'ask log to follow renames')]) def perflog(ui, repo, **opts): ui.pushbuffer() timer(lambda: commands.log(ui, repo, rev=[], date='', user='', copies=opts.get('rename'))) ui.popbuffer() @command('perftemplating') def perftemplating(ui, repo): ui.pushbuffer() timer(lambda: commands.log(ui, repo, rev=[], date='', user='', template='{date|shortdate} [{rev}:{node|short}]' ' {author|person}: {desc|firstline}\n')) ui.popbuffer() @command('perfcca') def perfcca(ui, repo): timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) @command('perffncacheload') def perffncacheload(ui, repo): s = repo.store def d(): s.fncache._load() timer(d) @command('perffncachewrite') def perffncachewrite(ui, repo): s = repo.store s.fncache._load() def d(): s.fncache._dirty = True s.fncache.write() timer(d) @command('perffncacheencode') def perffncacheencode(ui, repo): s = repo.store s.fncache._load() def d(): for p in s.fncache.entries: s.encode(p) timer(d) @command('perfdiffwd') def perfdiffwd(ui, repo): """Profile diff of working directory changes""" 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) @command('perfrevlog', [('d', 'dist', 100, 'distance between the revisions')], "[INDEXFILE]") def perfrevlog(ui, repo, file_, **opts): from mercurial import revlog dist = opts['dist'] def d(): r = revlog.revlog(lambda fn: open(fn, 'rb'), file_) for x in xrange(0, len(r), dist): r.revision(r.node(x)) timer(d) @command('perfrevset', [('C', 'clear', False, 'clear volatile cache between each call.')], "REVSET") def perfrevset(ui, repo, expr, clear=False): """benchmark the execution time of a revset Use the --clean option if need to evaluate the impact of build volative revisions set cache on the revset execution. Volatile cache hold filtered and obsolete related cache.""" def d(): if clear: repo.invalidatevolatilesets() repo.revs(expr) timer(d) @command('perfvolatilesets') def perfvolatilesets(ui, repo, *names): """benchmark the computation of various volatile set Volatile set computes element related to filtering and obsolescence.""" repo = repo.unfiltered() def getobs(name): def d(): repo.invalidatevolatilesets() 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() repoview.filteredrevs(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) @command('perfbranchmap', [('f', 'full', False, 'Includes build time of subset'), ]) def perfbranchmap(ui, repo, full=False): """benchmark the update of a branchmap This benchmarks the full repo.branchmap() call with read and write disabled """ def getbranchmap(filtername): """generate a benchmark function for the filtername""" if filtername is None: view = repo else: view = repo.filtered(filtername) def d(): 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) allfilters = [] while possiblefilters: for name in possiblefilters: subset = repoview.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) oldread = branchmap.read oldwrite = branchmap.branchcache.write try: branchmap.read = lambda repo: None branchmap.write = lambda repo: None for name in allfilters: timer(getbranchmap(name), title=str(name)) finally: branchmap.read = oldread branchmap.branchcache.write = oldwrite