comparison contrib/perf.py @ 42359:563cd9a72682

perf: add a `pre-run` option

sometimes, the initial run is necessary to warm some cache that are not relevant
for the current measurement. We add a new `perf.pre-run` option to specify a
number of run of the benchmark logic that will happens before measurement are
taken.

42358:45c18f7345c1

    worst, median average. If not set only the best timing is reported
    (default: off).

``presleep``
  number of second to wait before any group of runs (default: 1)

``run-limits``
  Control the number of runs each benchmark will perform. The option value
  should be a list of `<time>-<numberofrun>` pairs. After each run the
  conditions are considered in order with the following logic:

    )
    configitem(b'perf', b'parentscount',
        default=mercurial.configitems.dynamicdefault,
    )
    configitem(b'perf', b'all-timing',
        default=mercurial.configitems.dynamicdefault,
    )
    configitem(b'perf', b'run-limits',
        default=mercurial.configitems.dynamicdefault,
    )

            continue
        limits.append((time_limit, run_limit))
    if not limits:
        limits = DEFAULTLIMITS

    t = functools.partial(_timer, fm, displayall=displayall, limits=limits)
    return t, fm

def stub_timer(fm, func, setup=None, title=None):
    if setup is not None:
        setup()

    (3.0, 100),
    (10.0, 3),
)

def _timer(fm, func, setup=None, title=None, displayall=False,
           limits=DEFAULTLIMITS):
    gc.collect()
    results = []
    begin = util.timer()
    count = 0
    keepgoing = True
    while keepgoing:
        if setup is not None:
            setup()
        with timeone() as item:

42359:563cd9a72682

    worst, median average. If not set only the best timing is reported
    (default: off).

``presleep``
  number of second to wait before any group of runs (default: 1)

``pre-run``
  number of run to perform before starting measurement.

``run-limits``
  Control the number of runs each benchmark will perform. The option value
  should be a list of `<time>-<numberofrun>` pairs. After each run the
  conditions are considered in order with the following logic:

    )
    configitem(b'perf', b'parentscount',
        default=mercurial.configitems.dynamicdefault,
    )
    configitem(b'perf', b'all-timing',
        default=mercurial.configitems.dynamicdefault,
    )
    configitem(b'perf', b'pre-run',
        default=mercurial.configitems.dynamicdefault,
    )
    configitem(b'perf', b'run-limits',
        default=mercurial.configitems.dynamicdefault,
    )

            continue
        limits.append((time_limit, run_limit))
    if not limits:
        limits = DEFAULTLIMITS

    prerun = getint(ui, b"perf", b"pre-run", 0)
    t = functools.partial(_timer, fm, displayall=displayall, limits=limits,
                          prerun=prerun)
    return t, fm

def stub_timer(fm, func, setup=None, title=None):
    if setup is not None:
        setup()

    (3.0, 100),
    (10.0, 3),
)

def _timer(fm, func, setup=None, title=None, displayall=False,
           limits=DEFAULTLIMITS, prerun=0):
    gc.collect()
    results = []
    begin = util.timer()
    count = 0
    for i in xrange(prerun):
        if setup is not None:
            setup()
        func()
    keepgoing = True
    while keepgoing:
        if setup is not None:
            setup()
        with timeone() as item: