Boris Feld <boris.feld@octobus.net> [Thu, 22 Nov 2018 21:00:13 +0100] rev 40750
perf: add a perfignore command
The command is meant to benchmark operations related to hgignore. Right now the
command is benchmarking the loading time of the hgignore rules.
Pulkit Goyal <pulkit@yandex-team.ru> [Mon, 26 Nov 2018 15:36:06 +0300] rev 40749
py3: use pycompat.xrange instead of xrange
xrange does not exists on Python 3.
Differential Revision: https://phab.mercurial-scm.org/D5302
Pulkit Goyal <pulkit@yandex-team.ru> [Tue, 27 Nov 2018 16:16:13 +0300] rev 40748
store: write fncache only once if there are both adds and removes
Differential Revision: https://phab.mercurial-scm.org/D5307
Boris Feld <boris.feld@octobus.net> [Tue, 20 Nov 2018 17:44:24 +0000] rev 40747
perf: disable revlogs clearing in `perftags` by default
This aligns things with what `perfbookmarks` does. I decided to disable the
revlogs clearing by default to focus on the core logic by default, ignoring
side effects.
If we prefer to emphasize the side effect, we can instead keep this on in
`perftags` and enable it by default in `perfbookmarks`.
Boris Feld <boris.feld@octobus.net> [Tue, 20 Nov 2018 10:55:20 +0000] rev 40746
perf: add a `clear-revlogs` flag to `perfbookmarks`
This flag (off by default) makes it possible to enable the refresh of the
changelog and revlog. This is useful to check for costly side effects of
bookmark loading.
Usually, these side effects are shared with other logics (eg: tags).
example output in my mercurial repo (with 1 bookmark, so not a great example):
$ hg perfbookmarks
! wall 0.000044
$ hg perfbookmarks --clear-revlogs
! wall 0.001380
Boris Feld <boris.feld@octobus.net> [Tue, 20 Nov 2018 10:38:15 +0000] rev 40745
tags: cache `repo.changelog` access when checking tags nodes
The tags reading process checks if the nodes referenced in tags exist. Caching
the access to `repo.changelog` provides a large speedup for repositories with
many tags.
running `hg perftags` in a large private repository
before: ! wall 0.393464 comb 0.390000 user 0.330000 sys 0.060000 (median of 25)
after: ! wall 0.267711 comb 0.270000 user 0.210000 sys 0.060000 (median of 38)
Boris Feld <boris.feld@octobus.net> [Tue, 20 Nov 2018 10:46:20 +0000] rev 40744
perf: add a `clear-revlogs` flag to `perftags`
This flag (on by default) makes it possible to disable the refresh of the
changelog and revlog. This is useful to check for the time spent in the core
tags logic without the associated side effects. Usually, these side effects
are shared with other logics (eg: bookmarks).
Example output in my Mercurial repository
$ hg perftags
! wall 0.017919 comb 0.020000 user 0.020000 sys 0.000000 (best of 141)
$ hg perftags --no-clear-revlogs
! wall 0.012982 comb 0.010000 user 0.010000 sys 0.000000 (best of 207)