Mercurial > hg
view tests/test-issue522.t @ 18275:9818f22785b7
performance: speedup computation of unstable revisions
In their current state, revset calls can be very costly, as we test
predicates on the entire repository.
This change drops revset call 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:
! unstable
! wall 0.017366
After this changes:
! unstable
! wall 0.008093
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! unstable
! wall 0.045190
After:
! unstable
! wall 0.000032
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Fri, 04 Jan 2013 03:15:21 +0100 |
parents | b87acfda5268 |
children | bcf29565d89f |
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http://mercurial.selenic.com/bts/issue522 In the merge below, the file "foo" has the same contents in both parents, but if we look at the file-level history, we'll notice that the version in p1 is an ancestor of the version in p2. This test makes sure that we'll use the version from p2 in the manifest of the merge revision. $ hg init $ echo foo > foo $ hg ci -qAm 'add foo' $ echo bar >> foo $ hg ci -m 'change foo' $ hg backout -r tip -m 'backout changed foo' reverting foo changeset 2:4d9e78aaceee backs out changeset 1:b515023e500e $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ touch bar $ hg ci -qAm 'add bar' $ hg merge --debug searching for copies back to rev 1 unmatched files in local: bar resolving manifests overwrite: False, partial: False ancestor: bbd179dfa0a7, local: 71766447bdbb+, remote: 4d9e78aaceee foo: remote is newer -> g updating: foo 1/1 files (100.00%) getting foo 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg debugstate | grep foo n 0 -2 unset foo $ hg st -A foo M foo $ hg ci -m 'merge' $ hg manifest --debug | grep foo c6fc755d7e68f49f880599da29f15add41f42f5a 644 foo $ hg debugindex foo rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 5 ..... 0 2ed2a3912a0b 000000000000 000000000000 (re) 1 5 9 ..... 1 6f4310b00b9a 2ed2a3912a0b 000000000000 (re) 2 14 5 ..... 2 c6fc755d7e68 6f4310b00b9a 000000000000 (re)