Mercurial > hg
changeset 18277:a58260bc101f
performance: speedup computation of extinct revisions
In their current state, revset calls can be very costly, as we test
predicates on the entire repository.
This change drops revset calls in favor of direct testing of the phase
of changesets.
Performance test on my Mercurial checkout
- 19857 total changesets,
- 1584 obsolete changesets,
- 13310 obsolescence markers.
Before:
! extinct
! wall 0.015124
After:
! extinct
! wall 0.009424
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! extinct
! wall 0.032844
After:
! extinct
! wall 0.000066
| author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
|---|---|
| date | Fri, 04 Jan 2013 03:16:08 +0100 |
| parents | 834ef7e70d0f |
| children | 753acee7d6dd |
| files | mercurial/obsolete.py |
| diffstat | 1 files changed, 1 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/mercurial/obsolete.py Fri Jan 04 03:15:44 2013 +0100 +++ b/mercurial/obsolete.py Fri Jan 04 03:16:08 2013 +0100 @@ -677,7 +677,7 @@ @cachefor('extinct') def _computeextinctset(repo): """the set of obsolete parents without non obsolete descendants""" - return set(repo.revs('obsolete() - obsolete()::unstable()')) + return getrevs(repo, 'obsolete') - getrevs(repo, 'suspended') @cachefor('bumped')