performance: speedup computation of suspended revisions
In their current state, revset calls can be very costly, as we test
predicates on the entire repository.
This change drops a 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:
! suspended
! wall 0.014319
After:
! suspended
! wall 0.009559
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! suspended
! wall 0.033373
After:
! suspended
! wall 0.000053
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing:
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.