Mercurial > hg
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rust: itering less on MissingAncestors.bases for max()
Instead of iterating on the whole `self.bases` each time to find
its max, we keep the latter in a separate member attribute and
keep it up to date in `add_bases()`
On a perfdiscovery done on PyPy, with repos prepared with
`contrib/discovery-helper.sh 50 100`, this gives a slight
improvement (around 0.5% on wall time, but 10% on CPU)
before:
! wall 0.172801 comb 0.180000 user 0.180000 sys 0.000000 (median of 541)
after:
! wall 0.171798 comb 0.160000 user 0.160000 sys 0.000000 (median of 551)
(perf command run time upped because of bigger variability during this test).
Differential Revision: https://phab.mercurial-scm.org/D5945
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Mon, 04 Feb 2019 19:46:57 +0100 |
parents | aab43d5861bb |
children | 8492c6293c31 |
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