Mercurial > hg
view tests/test-blackbox.t @ 32783:4483696dacee
profile: upgrade the "profile" context manager to a full class
So far we have been able to use a simple decorator for this. However using the
current context manager makes the scope of the profiling in dispatch
constrainted and the time frame to decide to enable profiling quite limited
(using "maybeprofile")
This is the first step toward the ability to enable the profiling from within
the profiling scope. eg::
with maybeprofiling(ui) as profiler:
...
bar.foo():
...
if options['profile']:
profiler.start()
...
fooz()
...
My target usecase is adding support for "--profile" to alias definitions with
effect. These are to be used with "profiling.output=blackbox" to gather data
about operation that get slow from time to time (eg: pull being minutes instead
of seconds from time to time).
Of course, in such case, the scope of the profiling would be smaller since
profiler would be started after running extensions 'reposetup' (and other
potentially costly logic), but these are not relevant for my target usecase
(multiple second commits, multiple tens of seconds pull).
Currently adding '--profile' to a command through alias requires to re-spin a
Mercurial binary (using "!$HG" in alias), which as a significant performance
impact, especially in context where startup performance is being worked on...
An alternative approach would be to stop using the context manager in dispatch
and move back to a try/finally setup.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Thu, 08 Jun 2017 01:38:48 +0100 |
parents | 1b5c61d38a52 |
children | 75be14993fda |
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setup $ cat >> $HGRCPATH <<EOF > [extensions] > blackbox= > mock=$TESTDIR/mockblackbox.py > mq= > [alias] > confuse = log --limit 3 > EOF $ hg init blackboxtest $ cd blackboxtest command, exit codes, and duration $ echo a > a $ hg add a $ hg blackbox --config blackbox.dirty=True 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> add a 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> add a exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000+ (5000)> blackbox alias expansion is logged $ hg confuse $ hg blackbox 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> add a 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> add a exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000+ (5000)> blackbox 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000+ (5000)> blackbox --config *blackbox.dirty=True* exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> confuse 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> alias 'confuse' expands to 'log --limit 3' 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> confuse exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> blackbox incoming change tracking create two heads to verify that we only see one change in the log later $ hg commit -ma $ hg up null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo b > b $ hg commit -Amb adding b created new head clone, commit, pull $ hg clone . ../blackboxtest2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo c > c $ hg commit -Amc adding c $ cd ../blackboxtest2 $ hg pull pulling from $TESTTMP/blackboxtest (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (run 'hg update' to get a working copy) $ hg blackbox -l 6 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pull 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated served branch cache in * seconds (glob) 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote served branch cache with 1 labels and 2 nodes 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> 1 incoming changes - new heads: d02f48003e62 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pull exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6 we must not cause a failure if we cannot write to the log $ hg rollback repository tip rolled back to revision 1 (undo pull) $ mv .hg/blackbox.log .hg/blackbox.log- $ mkdir .hg/blackbox.log $ hg --debug incoming warning: cannot write to blackbox.log: * (glob) comparing with $TESTTMP/blackboxtest (glob) query 1; heads searching for changes all local heads known remotely changeset: 2:d02f48003e62c24e2659d97d30f2a83abe5d5d51 tag: tip phase: draft parent: 1:6563da9dcf87b1949716e38ff3e3dfaa3198eb06 parent: -1:0000000000000000000000000000000000000000 manifest: 2:ab9d46b053ebf45b7996f2922b9893ff4b63d892 user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: c extra: branch=default description: c $ hg pull pulling from $TESTTMP/blackboxtest (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (run 'hg update' to get a working copy) a failure reading from the log is fatal $ hg blackbox -l 3 abort: *$TESTTMP/blackboxtest2/.hg/blackbox.log* (glob) [255] $ rmdir .hg/blackbox.log $ mv .hg/blackbox.log- .hg/blackbox.log backup bundles get logged $ touch d $ hg commit -Amd adding d created new head $ hg strip tip 0 files updated, 0 files merged, 1 files removed, 0 files unresolved saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/*-backup.hg (glob) $ hg blackbox -l 6 1970/01/01 00:00:00 bob @73f6ee326b27d820b0472f1a825e3a50f3dc489b (5000)> strip tip 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/73f6ee326b27-7612e004-backup.hg (glob) 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated base branch cache in * seconds (glob) 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote base branch cache with 1 labels and 2 nodes 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> strip tip exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6 extension and python hooks - use the eol extension for a pythonhook $ echo '[extensions]' >> .hg/hgrc $ echo 'eol=' >> .hg/hgrc $ echo '[hooks]' >> .hg/hgrc $ echo 'update = echo hooked' >> .hg/hgrc $ hg update hooked 1 files updated, 0 files merged, 0 files removed, 0 files unresolved updated to "d02f48003e62: c" 1 other heads for branch "default" $ hg blackbox -l 6 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> update 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> writing .hg/cache/tags2-visible with 0 tags 1970/01/01 00:00:00 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pythonhook-preupdate: hgext.eol.preupdate finished in * seconds (glob) 1970/01/01 00:00:00 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> exthook-update: echo hooked finished in * seconds (glob) 1970/01/01 00:00:00 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> update exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> blackbox -l 6 log rotation $ echo '[blackbox]' >> .hg/hgrc $ echo 'maxsize = 20 b' >> .hg/hgrc $ echo 'maxfiles = 3' >> .hg/hgrc $ hg status $ hg status $ hg status $ hg tip -q 2:d02f48003e62 $ ls .hg/blackbox.log* .hg/blackbox.log .hg/blackbox.log.1 .hg/blackbox.log.2 $ cd .. $ hg init blackboxtest3 $ cd blackboxtest3 $ hg blackbox 1970/01/01 00:00:00 bob @0000000000000000000000000000000000000000 (5000)> blackbox $ mv .hg/blackbox.log .hg/blackbox.log- $ mkdir .hg/blackbox.log $ sed -e 's/\(.*test1.*\)/#\1/; s#\(.*commit2.*\)#os.rmdir(".hg/blackbox.log")\ > os.rename(".hg/blackbox.log-", ".hg/blackbox.log")\ > \1#' $TESTDIR/test-dispatch.py > ../test-dispatch.py $ python $TESTDIR/blackbox-readonly-dispatch.py running: add foo result: 0 running: commit -m commit1 -d 2000-01-01 foo result: None running: commit -m commit2 -d 2000-01-02 foo result: None running: log -r 0 changeset: 0:0e4634943879 user: test date: Sat Jan 01 00:00:00 2000 +0000 summary: commit1 result: None running: log -r tip changeset: 1:45589e459b2e tag: tip user: test date: Sun Jan 02 00:00:00 2000 +0000 summary: commit2 result: None $ hg blackbox 1970/01/01 00:00:00 bob @0e46349438790c460c5c9f7546bfcd39b267bbd2 (5000)> commit -m commit2 -d 2000-01-02 foo 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> updated served branch cache in * seconds (glob) 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> wrote served branch cache with 1 labels and 1 nodes 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> commit -m commit2 -d 2000-01-02 foo exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> log -r 0 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> writing .hg/cache/tags2-visible with 0 tags 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> log -r 0 exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> log -r tip 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> log -r tip exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> blackbox Test log recursion from dirty status check $ cat > ../r.py <<EOF > from mercurial import context, error, extensions > x=[False] > def status(orig, *args, **opts): > args[0].repo().ui.log("broken", "recursion?") > return orig(*args, **opts) > def reposetup(ui, repo): > extensions.wrapfunction(context.basectx, 'status', status) > EOF $ hg id --config extensions.x=../r.py --config blackbox.dirty=True 45589e459b2e tip cleanup $ cd ..