Mercurial > hg
view tests/test-issue1877.t @ 18272:95ef7a87c053
performance: speedup computation of hidden revisions
In their current state, revset calls can be very costlys, as we
test predicates on the entire repository. The hidden filter is very
widely used, and needs to be very fast.
This change drops revset calls in favor of direct revision manipulation.
Performance test on my Mercurial checkout
- 19857 total changesets,
- 1584 obsolete changesets,
- 13310 obsolescence markers.
Before:
! hidden
! wall 0.077553
After this changes:
! hidden
! wall 0.011230
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! hidden
! wall 0.389472
After:
! hidden
! wall 0.000079
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Fri, 04 Jan 2013 05:44:01 +0100 |
parents | f2719b387380 |
children | ca275f7ec576 |
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http://mercurial.selenic.com/bts/issue1877 $ hg init a $ cd a $ echo a > a $ hg add a $ hg ci -m 'a' $ echo b > a $ hg ci -m'b' $ hg up 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg book main $ hg book * main 0:cb9a9f314b8b $ echo c > c $ hg add c $ hg ci -m'c' created new head $ hg book * main 2:d36c0562f908 $ hg heads changeset: 2:d36c0562f908 bookmark: main tag: tip parent: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: c changeset: 1:1e6c11564562 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: b $ hg up 1e6c11564562 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg merge main 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg book main 2:d36c0562f908 $ hg ci -m'merge' $ hg book main 2:d36c0562f908 $ cd ..