comparison contrib/perf.py @ 18304:9b6ae29d4801

perf: add perfbranchmap command

The command times the update of a branchmap from its nearest subset
or from scratch.

18303:4d1671b39168

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

from mercurial import cmdutil, scmutil, util, match, commands, obsolete
from mercurial import repoview
import time, os, sys

cmdtable = {}
command = cmdutil.command(cmdtable)

    if names:
        allfilter = [n for n in allfilter if n in names]

    for name in allfilter:
        timer(getfiltered(name), title=name)

18304:9b6ae29d4801

# 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)

    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