view contrib/perf.py @ 9791:8bba9157b30a

rst2man: automatically write sections in uppercase

Man pages have uppercased section titles but other formats do not.
Letting rst2man handle the tranformation allows better reuse of text
between man pages and other formats.

# perf.py - performance test routines
'''helper extension to measure performance'''

from mercurial import cmdutil, match, commands
import time, os, sys

def timer(func):
    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 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.changelog
    def d():
        t = repo.changelog.tip()
        repo.changelog = mercurial.changelog.changelog(repo.sopener)
        repo.changelog._loadindexmap()
    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):
    ui.pushbuffer()
    timer(lambda: commands.log(ui, repo, rev=[], date='', user=''))
    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()

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, []),
    'perftemplating': (perftemplating, []),
}