Mercurial > hg
view contrib/perf.py @ 18124:79db6d40bced
branchmap: store branchcache in a dedicated object
Value and key of branchcache would benefit from being hold by the same object.
Moreover some logic (update, write, validation) could be move on such object.
The creation of this object is the first step toward this move. The result will
clarify branchcache related code and hide most of the detail in the class
itself. This encapsulation will greatly helps implementation of branchcache for
filtered view of the repo.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Sat, 22 Dec 2012 01:44:42 +0100 |
parents | f7f8159caad3 |
children | 819520ca213d |
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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, **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 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 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) 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) def perfrevset(ui, repo, expr): def d(): repo.revs(expr) timer(d) cmdtable = { 'perfcca': (perfcca, []), 'perffncacheload': (perffncacheload, []), 'perffncachewrite': (perffncachewrite, []), 'perffncacheencode': (perffncacheencode, []), 'perflookup': (perflookup, []), 'perfrevrange': (perfrevrange, []), 'perfnodelookup': (perfnodelookup, []), 'perfparents': (perfparents, []), 'perfstartup': (perfstartup, []), 'perfstatus': (perfstatus, [('u', 'unknown', False, 'ask status to look for unknown files')]), 'perfwalk': (perfwalk, []), 'perfmanifest': (perfmanifest, []), 'perfchangeset': (perfchangeset, []), 'perfindex': (perfindex, []), 'perfheads': (perfheads, []), 'perftags': (perftags, []), 'perfancestors': (perfancestors, []), 'perfancestorset': (perfancestorset, [], "REVSET"), '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]"), 'perfrevset': (perfrevset, [], "REVSET") }