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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):
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, []),
}
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