Mercurial > hg
view tests/test-debugindexdot.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 | a03c3ba3e4b5 |
children | 435481393198 |
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Just exercise debugindexdot Create a short file history including a merge. $ hg init t $ cd t $ echo a > a $ hg ci -qAm t1 -d '0 0' $ echo a >> a $ hg ci -m t2 -d '1 0' $ hg up -qC 0 $ echo b >> a $ hg ci -m t3 -d '2 0' created new head $ HGMERGE=true hg merge -q $ hg ci -m merge -d '3 0' $ hg debugindexdot .hg/store/data/a.i digraph G { -1 -> 0 0 -> 1 0 -> 2 2 -> 3 1 -> 3 } $ cd ..