Mercurial > public > mercurial-scm > hg-stable
comparison mercurial/revset.py @ 25567:f140d6207cca
revset: use parentsets.min in _children
As stated in the comment, using the smartset 'min' will give more opportunity to
be smart. It give a small but significant boost to the performance. Most of the
time is still spend doing the actual computation but at least we can scrap some
performance when it makes sense.
revset #0: roots(0:tip)
plain
0) 0.046600
1) 0.044109 94%
| author | Pierre-Yves David <pierre-yves.david@fb.com> |
|---|---|
| date | Thu, 11 Jun 2015 19:02:24 -0700 |
| parents | 15412bba5a68 |
| children | 97528adbf74b |
comparison
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| 25566:15412bba5a68 | 25567:f140d6207cca |
|---|---|
| 620 def _children(repo, narrow, parentset): | 620 def _children(repo, narrow, parentset): |
| 621 if not parentset: | 621 if not parentset: |
| 622 return baseset() | 622 return baseset() |
| 623 cs = set() | 623 cs = set() |
| 624 pr = repo.changelog.parentrevs | 624 pr = repo.changelog.parentrevs |
| 625 # XXX this should be 'parentset.min()' assuming 'parentset' is a smartset | 625 minrev = parentset.min() |
| 626 # (and if it is not, it should.) | |
| 627 minrev = min(parentset) | |
| 628 for r in narrow: | 626 for r in narrow: |
| 629 if r <= minrev: | 627 if r <= minrev: |
| 630 continue | 628 continue |
| 631 for p in pr(r): | 629 for p in pr(r): |
| 632 if p in parentset: | 630 if p in parentset: |