Mercurial > hg
view tests/check-perf-code.py @ 33927:853574db5b12
encoding: add fast path of from/tolocal() for ASCII strings
This is micro optimization, but seems not bad since to/fromlocal() is called
lots of times and isasciistr() is cheap and simple.
We boldly assume that any non-ASCII characters have at least one 8-bit byte.
This isn't true for some email character sets (e.g. ISO-2022-JP and UTF-7),
but I believe no such encodings are used as a platform default. Shift_JIS,
a major crap, is okay as it should have a leading byte in 0x80-0xff range.
(with mercurial repo)
$ export HGRCPATH=/dev/null HGPLAIN=
$ hg log --time --config experimental.stabilization=all > /dev/null
(original)
time: real 7.460 secs (user 7.420+0.000 sys 0.030+0.000)
time: real 7.670 secs (user 7.590+0.000 sys 0.080+0.000)
time: real 7.560 secs (user 7.510+0.000 sys 0.040+0.000)
(this patch)
time: real 7.340 secs (user 7.260+0.000 sys 0.060+0.000)
time: real 7.260 secs (user 7.210+0.000 sys 0.030+0.000)
time: real 7.310 secs (user 7.260+0.000 sys 0.060+0.000)
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sun, 23 Apr 2017 13:06:23 +0900 |
parents | bd872f64a8ba |
children | eb8a8af4cbd0 |
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#!/usr/bin/env python # # check-perf-code - (historical) portability checker for contrib/perf.py from __future__ import absolute_import import os import sys # write static check patterns here perfpypats = [ [ (r'(branchmap|repoview)\.subsettable', "use getbranchmapsubsettable() for early Mercurial"), (r'\.(vfs|svfs|opener|sopener)', "use getvfs()/getsvfs() for early Mercurial"), (r'ui\.configint', "use getint() instead of ui.configint() for early Mercurial"), ], # warnings [ ] ] def modulewhitelist(names): replacement = [('.py', ''), ('.c', ''), # trim suffix ('mercurial%s' % (os.sep), ''), # trim "mercurial/" path ] ignored = {'__init__'} modules = {} # convert from file name to module name, and count # of appearances for name in names: name = name.strip() for old, new in replacement: name = name.replace(old, new) if name not in ignored: modules[name] = modules.get(name, 0) + 1 # list up module names, which appear multiple times whitelist = [] for name, count in modules.items(): if count > 1: whitelist.append(name) return whitelist if __name__ == "__main__": # in this case, it is assumed that result of "hg files" at # multiple revisions is given via stdin whitelist = modulewhitelist(sys.stdin) assert whitelist, "module whitelist is empty" # build up module whitelist check from file names given at runtime perfpypats[0].append( # this matching pattern assumes importing modules from # "mercurial" package in the current style below, for simplicity # # from mercurial import ( # foo, # bar, # baz # ) ((r'from mercurial import [(][a-z0-9, \n#]*\n(?! *%s,|^[ #]*\n|[)])' % ',| *'.join(whitelist)), "import newer module separately in try clause for early Mercurial" )) # import contrib/check-code.py as checkcode assert 'RUNTESTDIR' in os.environ, "use check-perf-code.py in *.t script" contribpath = os.path.join(os.environ['RUNTESTDIR'], '..', 'contrib') sys.path.insert(0, contribpath) checkcode = __import__('check-code') # register perf.py specific entry with "checks" in check-code.py checkcode.checks.append(('perf.py', r'contrib/perf.py$', '', checkcode.pyfilters, perfpypats)) sys.exit(checkcode.main())