Mercurial > hg
view tests/test-merge5.t @ 27784:432242f41d9f
obsolete: make _computeobsoleteset much faster
This patch makes _computeobsoleteset much faster by looping
over the draft and secrets as opposed to looping over the
successors.
This works because "number of draft and secret" is typically
way smaller(<100) than the number of successor in the repo (~90k in
my checkout of core mercurial as of today). And also because
it is very fast to compute "not public()".
I timed the code with the following setup:
"""
from mercurial import hg, ui, obsolete
ui = ui.ui()
repo = hg.repository(ui, "~/hg")
l = repo.obsstore.successors # This caches the result
"""
With about 90k successors.
k=obsolete._computeobsoleteset(repo) before this patch:
10 loops, best of 3: 33.9 ms per loop
k=obsolete._computeobsoleteset(repo) after this patch:
10000 loops, best of 3: 83.3 µs per loop
author | Laurent Charignon <lc2817@columbia.edu> |
---|---|
date | Wed, 13 Jan 2016 21:52:26 -0800 |
parents | fe80fdf68ba7 |
children | 72072cfc7e91 |
line wrap: on
line source
$ hg init $ echo This is file a1 > a $ echo This is file b1 > b $ hg add a b $ hg commit -m "commit #0" $ echo This is file b22 > b $ hg commit -m "comment #1" $ hg update 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm b $ hg commit -A -m "comment #2" removing b created new head $ hg update 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg update abort: not a linear update (merge or update --check to force update) [255] $ rm b $ hg update -c abort: uncommitted changes [255] $ hg revert b $ hg update -c 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mv a c Should abort: $ hg update 1 abort: uncommitted changes (commit or update --clean to discard changes) [255] $ mv c a Should succeed: $ hg update 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved