Mercurial > hg
view tests/test-fastannotate-perfhack.t @ 42943:5fadf6103790
remotefilelog: replace repack lock to solve race condition
2c74337e6483 reduced the probability of race-conditions when starting
background repack and prefetch and we saw the difference in our CI instance
with all failures disappearing except one where one call to waitonrepack seems
to returns too early.
I'm not sure what exactly goes wrong but I realized that while the prefetch
operation uses a standard Mercurial lock, the repack operation is using a
custom lock based on `fcntl.flock` on available platforms. As `extutil.flock`
fallback on traditional Mercurial locks on other platforms and the tests are
stable on my laptop, our CI environment and GCC112, I'm sending this patch to
standardize the behavior across environments.
Differential Revision: https://phab.mercurial-scm.org/D6844
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Wed, 11 Sep 2019 17:41:13 +0200 |
parents | 7116fc614cfc |
children |
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$ cat >> $HGRCPATH << EOF > [extensions] > fastannotate= > [fastannotate] > perfhack=1 > EOF $ hg init repo $ cd repo a simple merge case $ echo 1 > a $ hg commit -qAm 'append 1' $ echo 2 >> a $ hg commit -m 'append 2' $ echo 3 >> a $ hg commit -m 'append 3' $ hg up 1 -q $ cat > a << EOF > 0 > 1 > 2 > EOF $ hg commit -qm 'insert 0' $ hg merge 2 -q $ echo 4 >> a $ hg commit -m merge $ hg log -G -T '{rev}: {desc}' @ 4: merge |\ | o 3: insert 0 | | o | 2: append 3 |/ o 1: append 2 | o 0: append 1 $ hg fastannotate a 3: 0 0: 1 1: 2 2: 3 4: 4 $ hg fastannotate -r 0 a 0: 1 $ hg fastannotate -r 1 a 0: 1 1: 2 $ hg fastannotate -udnclf a test 3 d641cb51f61e Thu Jan 01 00:00:00 1970 +0000 a:1: 0 test 0 4994017376d3 Thu Jan 01 00:00:00 1970 +0000 a:1: 1 test 1 e940cb6d9a06 Thu Jan 01 00:00:00 1970 +0000 a:2: 2 test 2 26162a884ba6 Thu Jan 01 00:00:00 1970 +0000 a:3: 3 test 4 3ad7bcd2815f Thu Jan 01 00:00:00 1970 +0000 a:5: 4 $ hg fastannotate --linear a 3: 0 0: 1 1: 2 4: 3 4: 4 incrementally updating $ hg fastannotate -r 0 a --debug fastannotate: a: using fast path (resolved fctx: True) 0: 1 $ hg fastannotate -r 0 a --debug --rebuild fastannotate: a: 1 new changesets in the main branch 0: 1 $ hg fastannotate -r 1 a --debug fastannotate: a: 1 new changesets in the main branch 0: 1 1: 2 $ hg fastannotate -r 3 a --debug fastannotate: a: 1 new changesets in the main branch 3: 0 0: 1 1: 2 $ hg fastannotate -r 4 a --debug fastannotate: a: 1 new changesets in the main branch 3: 0 0: 1 1: 2 2: 3 4: 4 $ hg fastannotate -r 1 a --debug fastannotate: a: using fast path (resolved fctx: True) 0: 1 1: 2 rebuild happens automatically if unable to update $ hg fastannotate -r 2 a --debug fastannotate: a: cache broken and deleted fastannotate: a: 3 new changesets in the main branch 0: 1 1: 2 2: 3 config option "fastannotate.mainbranch" $ hg fastannotate -r 1 --rebuild --config fastannotate.mainbranch=tip a --debug fastannotate: a: 4 new changesets in the main branch 0: 1 1: 2 $ hg fastannotate -r 4 a --debug fastannotate: a: using fast path (resolved fctx: True) 3: 0 0: 1 1: 2 2: 3 4: 4 rename $ hg mv a b $ cat > b << EOF > 0 > 11 > 3 > 44 > EOF $ hg commit -m b -q $ hg fastannotate -ncf --long-hash b 3 d641cb51f61e331c44654104301f8154d7865c89 a: 0 5 d44dade239915bc82b91e4556b1257323f8e5824 b: 11 2 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a: 3 5 d44dade239915bc82b91e4556b1257323f8e5824 b: 44 $ hg fastannotate -r 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a 0: 1 1: 2 2: 3 fastannotate --deleted $ hg fastannotate --deleted -nf b 3 a: 0 5 b: 11 0 a: -1 1 a: -2 2 a: 3 5 b: 44 4 a: -4 $ hg fastannotate --deleted -r 3 -nf a 3 a: 0 0 a: 1 1 a: 2 file and directories with ".l", ".m" suffixes $ cd .. $ hg init repo2 $ cd repo2 $ mkdir a.l b.m c.lock a.l.hg b.hg $ for i in a b c d d.l d.m a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a; do > echo $i > $i > done $ hg add . -q $ hg commit -m init $ hg fastannotate a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a d.l d.m a b c d 0: a 0: a.l.hg/a 0: a.l/a 0: b 0: b.hg/a 0: b.m/a 0: c 0: c.lock/a 0: d 0: d.l 0: d.m empty file $ touch empty $ hg commit -A empty -m empty $ hg fastannotate empty