Mercurial > hg
view contrib/perf.py @ 18004:747a2f43d5d9
clfilter: strip logic should be unfiltered
Strip is a "write" operation that needs to be aware of the whole repo's
content before destroying changesets.
Only the low level function is altered. The top level command will still
process its argument filtered (if any filtering is in place).
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Mon, 08 Oct 2012 17:12:09 +0200 |
parents | 769f66861eb8 |
children | 00ac420f24ee |
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# perf.py - performance test routines '''helper extension to measure performance''' from mercurial import cmdutil, scmutil, util, match, commands import time, os, sys 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)) 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, {})))) def perfstatus(ui, repo, *pats): #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()))) 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 def perfheads(ui, repo): cl = repo.changelog def d(): len(cl.headrevs()) clearcaches(cl) timer(d) 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) def perfancestors(ui, repo): heads = repo.changelog.headrevs() def d(): for a in repo.changelog.ancestors(heads): pass timer(d) def perfdirstate(ui, repo): "a" in repo.dirstate def d(): repo.dirstate.invalidate() "a" in repo.dirstate timer(d) def perfdirstatedirs(ui, repo): "a" in repo.dirstate def d(): "a" in repo.dirstate._dirs del repo.dirstate._dirs timer(d) def perfdirstatewrite(ui, repo): ds = repo.dirstate "a" in ds def d(): ds._dirty = True ds.write() timer(d) 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) def perfchangeset(ui, repo, rev): n = repo[rev].node() def d(): c = repo.changelog.read(n) #repo.changelog._cache = None timer(d) 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) def perfstartup(ui, repo): cmd = sys.argv[0] def d(): os.system("HGRCPATH= %s version -q > /dev/null" % cmd) timer(d) 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) def perflookup(ui, repo, rev): timer(lambda: len(repo.lookup(rev))) def perfrevrange(ui, repo, *specs): revrange = scmutil.revrange timer(lambda: len(revrange(repo, specs))) def perfnodelookup(ui, repo, rev): import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo[rev].node() def d(): cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i") cl.rev(n) timer(d) 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) def perflog(ui, repo, **opts): ui.pushbuffer() timer(lambda: commands.log(ui, repo, rev=[], date='', user='', copies=opts.get('rename'))) ui.popbuffer() 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() def perfcca(ui, repo): timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) def perffncacheload(ui, repo): s = repo.store def d(): s.fncache._load() timer(d) def perffncachewrite(ui, repo): s = repo.store s.fncache._load() def d(): s.fncache._dirty = True s.fncache.write() timer(d) def perffncacheencode(ui, repo): s = repo.store s.fncache._load() def d(): for p in s.fncache.entries: s.encode(p) timer(d) 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) 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) cmdtable = { 'perfcca': (perfcca, []), 'perffncacheload': (perffncacheload, []), 'perffncachewrite': (perffncachewrite, []), 'perffncacheencode': (perffncacheencode, []), 'perflookup': (perflookup, []), 'perfrevrange': (perfrevrange, []), 'perfnodelookup': (perfnodelookup, []), 'perfparents': (perfparents, []), 'perfstartup': (perfstartup, []), 'perfstatus': (perfstatus, []), 'perfwalk': (perfwalk, []), 'perfmanifest': (perfmanifest, []), 'perfchangeset': (perfchangeset, []), 'perfindex': (perfindex, []), 'perfheads': (perfheads, []), 'perftags': (perftags, []), 'perfancestors': (perfancestors, []), 'perfdirstate': (perfdirstate, []), 'perfdirstatedirs': (perfdirstate, []), 'perfdirstatewrite': (perfdirstatewrite, []), 'perflog': (perflog, [('', 'rename', False, 'ask log to follow renames')]), 'perftemplating': (perftemplating, []), 'perfdiffwd': (perfdiffwd, []), 'perfrevlog': (perfrevlog, [('d', 'dist', 100, 'distance between the revisions')], "[INDEXFILE]"), }