view tests/fakemergerecord.py @ 31397:8f5ed8fa39f8

perf: perform a garbage collection before each iteration

Currently, no explicit garbage collection is performed when running
the microbenchmarks in `hg perf`. I think this is wrong because
garbage collection can have a significant impact on execution times.
And, if gc is triggered via the default heuristics, it will
fire effectively randomly during subsequent benchmark iterations
due to variable amount of garbage left over from previous runs.

Running a gc before invoking the measured function will help ensure
state is more consistent across all iterations.

# Extension to write out fake unsupported records into the merge state
#
#

from __future__ import absolute_import

from mercurial import (
    cmdutil,
    merge,
)

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

@command('fakemergerecord',
         [('X', 'mandatory', None, 'add a fake mandatory record'),
          ('x', 'advisory', None, 'add a fake advisory record')], '')
def fakemergerecord(ui, repo, *pats, **opts):
    with repo.wlock():
        ms = merge.mergestate.read(repo)
        records = ms._makerecords()
        if opts.get('mandatory'):
            records.append(('X', 'mandatory record'))
        if opts.get('advisory'):
            records.append(('x', 'advisory record'))
        ms._writerecords(records)