Mercurial > hg
view contrib/perf.py @ 14133:28085b82f801
graphlog: always sort revisions topologically
The grapher cannot really handled revisions if they are not emitted in
topological order. The previous 'reverse()' revset was not enough to achieve
that and was replaced by an explicit sort call for simplicity. The --limit
option is now also handled as usual with cmdutil.loglimit() instead of a
'limit' revset.
author | Patrick Mezard <pmezard@gmail.com> |
---|---|
date | Sun, 01 May 2011 15:51:52 +0200 |
parents | 9f707b297b0f |
children | a90131b85fd8 |
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# perf.py - performance test routines '''helper extension to measure performance''' from mercurial import cmdutil, match, commands import time, os, sys def timer(func, title=None): results = [] begin = time.time() count = 0 while 1: 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 = cmdutil.match(repo, pats, {}) timer(lambda: len(list(repo.dirstate.walk(m, [], True, False)))) except: try: m = cmdutil.match(repo, pats, {}) timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)])) except: 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 perfheads(ui, repo): timer(lambda: len(repo.changelog.heads())) 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 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 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 perfindex(ui, repo): import mercurial.revlog mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg n = repo["tip"].node() def d(): repo.invalidate() repo[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 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 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 = { 'perflookup': (perflookup, []), 'perfparents': (perfparents, []), 'perfstartup': (perfstartup, []), 'perfstatus': (perfstatus, []), 'perfwalk': (perfwalk, []), 'perfmanifest': (perfmanifest, []), 'perfindex': (perfindex, []), 'perfheads': (perfheads, []), 'perftags': (perftags, []), 'perfdirstate': (perfdirstate, []), 'perfdirstatedirs': (perfdirstate, []), 'perflog': (perflog, [('', 'rename', False, 'ask log to follow renames')]), 'perftemplating': (perftemplating, []), 'perfdiffwd': (perfdiffwd, []), 'perfrevlog': (perfrevlog, [('d', 'dist', 100, 'distance between the revisions')], "[INDEXFILE]"), }