Mercurial > hg
view contrib/dirstatenonnormalcheck.py @ 40925:008f3491dc53
perf: add perfprogress command
I've noticed that progress bars can add significant overhead to tight
loops. Let's add a perf command that attempts to isolate that overhead.
With a default hgrc, iteration over 1M items appears to take ~3.75s on
my machine. Profiling reveals ~28% of time is spent in ui.configbool()
resolving the value of the progress.debug config option.
Even if I set progress.disable=true, execution still takes ~2.60s, with
~59% of the time spent in ui.configbool().
Differential Revision: https://phab.mercurial-scm.org/D5407
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 10 Dec 2018 20:01:07 +0000 |
parents | 6e7fae8f1c6c |
children | 2372284d9457 |
line wrap: on
line source
# dirstatenonnormalcheck.py - extension to check the consistency of the # dirstate's non-normal map # # For most operations on dirstate, this extensions checks that the nonnormalset # contains the right entries. # It compares the nonnormal file to a nonnormalset built from the map of all # the files in the dirstate to check that they contain the same files. from __future__ import absolute_import from mercurial import ( dirstate, extensions, ) def nonnormalentries(dmap): """Compute nonnormal entries from dirstate's dmap""" res = set() for f, e in dmap.iteritems(): if e[0] != b'n' or e[3] == -1: res.add(f) return res def checkconsistency(ui, orig, dmap, _nonnormalset, label): """Compute nonnormalset from dmap, check that it matches _nonnormalset""" nonnormalcomputedmap = nonnormalentries(dmap) if _nonnormalset != nonnormalcomputedmap: ui.develwarn(b"%s call to %s\n" % (label, orig), config=b'dirstate') ui.develwarn(b"inconsistency in nonnormalset\n", config=b'dirstate') ui.develwarn(b"[nonnormalset] %s\n" % _nonnormalset, config=b'dirstate') ui.develwarn(b"[map] %s\n" % nonnormalcomputedmap, config=b'dirstate') def _checkdirstate(orig, self, arg): """Check nonnormal set consistency before and after the call to orig""" checkconsistency(self._ui, orig, self._map, self._map.nonnormalset, b"before") r = orig(self, arg) checkconsistency(self._ui, orig, self._map, self._map.nonnormalset, b"after") return r def extsetup(ui): """Wrap functions modifying dirstate to check nonnormalset consistency""" dirstatecl = dirstate.dirstate devel = ui.configbool(b'devel', b'all-warnings') paranoid = ui.configbool(b'experimental', b'nonnormalparanoidcheck') if devel: extensions.wrapfunction(dirstatecl, '_writedirstate', _checkdirstate) if paranoid: # We don't do all these checks when paranoid is disable as it would # make the extension run very slowly on large repos extensions.wrapfunction(dirstatecl, 'normallookup', _checkdirstate) extensions.wrapfunction(dirstatecl, 'otherparent', _checkdirstate) extensions.wrapfunction(dirstatecl, 'normal', _checkdirstate) extensions.wrapfunction(dirstatecl, 'write', _checkdirstate) extensions.wrapfunction(dirstatecl, 'add', _checkdirstate) extensions.wrapfunction(dirstatecl, 'remove', _checkdirstate) extensions.wrapfunction(dirstatecl, 'merge', _checkdirstate) extensions.wrapfunction(dirstatecl, 'drop', _checkdirstate)