Mercurial > hg
view tests/test-ancestor.py.out @ 27063:37e1fdcb271c
context: optimize _parents()
This patch avoids some extra attribute lookups and list mutations.
This micro-optimization seems to result in a minor speedup for `hg log`
on my Firefox repo:
before: 25.35s
after: 24.91s
delta: -0.44s (98% of original)
Not the biggest gain. But every little bit helps.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 21 Nov 2015 19:04:12 -0800 |
parents | 3b1b8f25443e |
children | b6db2e80a9ce |
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% lazy ancestor set for [], stoprev = 0, inclusive = False membership: [] iteration: [] % lazy ancestor set for [11, 13], stoprev = 0, inclusive = False membership: [7, 8, 3, 4, 1, 0] iteration: [3, 7, 8, 1, 4, 0, 2] % lazy ancestor set for [1, 3], stoprev = 0, inclusive = False membership: [1, 0] iteration: [0, 1] % lazy ancestor set for [11, 13], stoprev = 0, inclusive = True membership: [11, 13, 7, 8, 3, 4, 1, 0] iteration: [11, 13, 3, 7, 8, 1, 4, 0, 2] % lazy ancestor set for [11, 13], stoprev = 6, inclusive = False membership: [7, 8] iteration: [7, 8] % lazy ancestor set for [11, 13], stoprev = 6, inclusive = True membership: [11, 13, 7, 8] iteration: [11, 13, 7, 8]