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revisionbranchcache: fall back to slow path if starting readonly (issue4531)...
revisionbranchcache: fall back to slow path if starting readonly (issue4531) Transitioning to Mercurial versions with revision branch cache could be slow as long as all operations were readonly (revset queries) and the cache would be populated but not written back. Instead, fall back to using the consistently slow path when readonly and the cache doesn't exist yet. That avoids the overhead of populating the cache without writing it back. If not readonly, it will still populate all missing entries initially. That avoids repeated writing of the cache file with small updates, and it also makes sure a fully populated cache available for the readonly operations.

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r23277:581d3bc0 default
r24159:5b4ed033 3.3.1 stable
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test-hup.t
47 lines | 923 B | text/troff | Tads3Lexer
Matt Mackall
tests: replace exit 80 with #require
r22046 #require serve fifo
Matt Mackall
tests: unify test-hup
r12413 Test hangup signal in the middle of transaction
$ hg init
$ mkfifo p
Matt Mackall
tests: make test-hup more race-proof...
r16342 $ hg serve --stdio < p 1>out 2>&1 &
Matt Mackall
tests: unify test-hup
r12413 $ P=$!
Matt Mackall
tests: remove sleep/startup/shutdown races from test-hup
r16299
Do test while holding fifo open
$ (
> echo lock
> echo addchangegroup
Pierre-Yves David
tests: prevent test-hup from hanging forever if the transaction does not start...
r20896 > start=`date +%s`
> # 10 second seems much enough to let the server catch up
> deadline=`expr $start + 10`
> while [ ! -s .hg/store/journal ]; do
> sleep 0;
> if [ `date +%s` -gt $deadline ]; then
> echo "transaction did not start after 10 seconds" >&2;
> exit 1;
> fi
> done
Matt Mackall
tests: remove sleep/startup/shutdown races from test-hup
r16299 > kill -HUP $P
> ) > p
Matt Mackall
tests: make test-hup more race-proof...
r16342
Matt Mackall
tests: avoid zombie lockup with test-hup...
r16344 $ wait
Matt Mackall
tests: make test-hup more race-proof...
r16342 $ cat out
Matt Mackall
tests: unify test-hup
r12413 0
0
adding changesets
transaction abort!
rollback completed
killed!
Matt Mackall
tests: remove sleep/startup/shutdown races from test-hup
r16299
Pierre-Yves David
test-hup: use ls instead of echo...
r23277 $ ls -1d .hg/* .hg/store/*
.hg/00changelog.i
.hg/journal.bookmarks
.hg/journal.branch
.hg/journal.desc
.hg/journal.dirstate
.hg/requires
.hg/store
.hg/store/00changelog.i
.hg/store/00changelog.i.a
.hg/store/journal.phaseroots