largefiles: remove wrong comment on standin matcher and code for creating dirs
The existence of these directories could not be relied on anyway and all
dependencies on them should have been removed.
# perf.py - performance test routines
'''helper extension to measure performance'''
from mercurial import cmdutil, scmutil, util, match, commands, obsolete
from mercurial import repoview, branchmap
import time, os, sys
cmdtable = {}
command = cmdutil.command(cmdtable)
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))
@command('perfwalk')
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, {}))))
@command('perfstatus',
[('u', 'unknown', False,
'ask status to look for unknown files')])
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
@command('perfheads')
def perfheads(ui, repo):
cl = repo.changelog
def d():
len(cl.headrevs())
clearcaches(cl)
timer(d)
@command('perftags')
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)
@command('perfancestors')
def perfancestors(ui, repo):
heads = repo.changelog.headrevs()
def d():
for a in repo.changelog.ancestors(heads):
pass
timer(d)
@command('perfancestorset')
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)
@command('perfdirstate')
def perfdirstate(ui, repo):
"a" in repo.dirstate
def d():
repo.dirstate.invalidate()
"a" in repo.dirstate
timer(d)
@command('perfdirstatedirs')
def perfdirstatedirs(ui, repo):
"a" in repo.dirstate
def d():
"a" in repo.dirstate._dirs
del repo.dirstate._dirs
timer(d)
@command('perfdirstatewrite')
def perfdirstatewrite(ui, repo):
ds = repo.dirstate
"a" in ds
def d():
ds._dirty = True
ds.write()
timer(d)
@command('perfmanifest')
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)
@command('perfchangeset')
def perfchangeset(ui, repo, rev):
n = repo[rev].node()
def d():
c = repo.changelog.read(n)
#repo.changelog._cache = None
timer(d)
@command('perfindex')
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)
@command('perfstartup')
def perfstartup(ui, repo):
cmd = sys.argv[0]
def d():
os.system("HGRCPATH= %s version -q > /dev/null" % cmd)
timer(d)
@command('perfparents')
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)
@command('perflookup')
def perflookup(ui, repo, rev):
timer(lambda: len(repo.lookup(rev)))
@command('perfrevrange')
def perfrevrange(ui, repo, *specs):
revrange = scmutil.revrange
timer(lambda: len(revrange(repo, specs)))
@command('perfnodelookup')
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)
@command('perflog',
[('', 'rename', False, 'ask log to follow renames')])
def perflog(ui, repo, **opts):
ui.pushbuffer()
timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
copies=opts.get('rename')))
ui.popbuffer()
@command('perftemplating')
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()
@command('perfcca')
def perfcca(ui, repo):
timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate))
@command('perffncacheload')
def perffncacheload(ui, repo):
s = repo.store
def d():
s.fncache._load()
timer(d)
@command('perffncachewrite')
def perffncachewrite(ui, repo):
s = repo.store
s.fncache._load()
def d():
s.fncache._dirty = True
s.fncache.write()
timer(d)
@command('perffncacheencode')
def perffncacheencode(ui, repo):
s = repo.store
s.fncache._load()
def d():
for p in s.fncache.entries:
s.encode(p)
timer(d)
@command('perfdiffwd')
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)
@command('perfrevlog',
[('d', 'dist', 100, 'distance between the revisions')],
"[INDEXFILE]")
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)
@command('perfrevset',
[('C', 'clear', False, 'clear volatile cache between each call.')],
"REVSET")
def perfrevset(ui, repo, expr, clear=False):
"""benchmark the execution time of a revset
Use the --clean option if need to evaluate the impact of build volatile
revisions set cache on the revset execution. Volatile cache hold filtered
and obsolete related cache."""
def d():
if clear:
repo.invalidatevolatilesets()
repo.revs(expr)
timer(d)
@command('perfvolatilesets')
def perfvolatilesets(ui, repo, *names):
"""benchmark the computation of various volatile set
Volatile set computes element related to filtering and obsolescence."""
repo = repo.unfiltered()
def getobs(name):
def d():
repo.invalidatevolatilesets()
obsolete.getrevs(repo, name)
return d
allobs = sorted(obsolete.cachefuncs)
if names:
allobs = [n for n in allobs if n in names]
for name in allobs:
timer(getobs(name), title=name)
def getfiltered(name):
def d():
repo.invalidatevolatilesets()
repoview.filteredrevs(repo, name)
return d
allfilter = sorted(repoview.filtertable)
if names:
allfilter = [n for n in allfilter if n in names]
for name in allfilter:
timer(getfiltered(name), title=name)
@command('perfbranchmap',
[('f', 'full', False,
'Includes build time of subset'),
])
def perfbranchmap(ui, repo, full=False):
"""benchmark the update of a branchmap
This benchmarks the full repo.branchmap() call with read and write disabled
"""
def getbranchmap(filtername):
"""generate a benchmark function for the filtername"""
if filtername is None:
view = repo
else:
view = repo.filtered(filtername)
def d():
if full:
view._branchcaches.clear()
else:
view._branchcaches.pop(filtername, None)
view.branchmap()
return d
# add filter in smaller subset to bigger subset
possiblefilters = set(repoview.filtertable)
allfilters = []
while possiblefilters:
for name in possiblefilters:
subset = repoview.subsettable.get(name)
if subset not in possiblefilters:
break
else:
assert False, 'subset cycle %s!' % possiblefilters
allfilters.append(name)
possiblefilters.remove(name)
# warm the cache
if not full:
for name in allfilters:
repo.filtered(name).branchmap()
# add unfiltered
allfilters.append(None)
oldread = branchmap.read
oldwrite = branchmap.branchcache.write
try:
branchmap.read = lambda repo: None
branchmap.write = lambda repo: None
for name in allfilters:
timer(getbranchmap(name), title=str(name))
finally:
branchmap.read = oldread
branchmap.branchcache.write = oldwrite