Mercurial > hg
view tests/test-push-checkheads-unpushed-D3.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 | 43c91eb53806 |
children | b11e8c67fb0f |
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==================================== Testing head checking code: Case D-3 ==================================== Mercurial checks for the introduction of new heads on push. Evolution comes into play to detect if existing branches on the server are being replaced by some of the new one we push. This case is part of a series of tests checking this behavior. Category D: remote head is "obs-affected" locally, but result is not part of the push TestCase 3: multi-changeset branch, split on multiple new others, only one of them is pushed .. old-state: .. .. * 2 changesets branch .. .. new-state: .. .. * 2 new branches, each superseding one changeset in the old one. .. .. expected-result: .. .. * pushing only one of the resulting branch (either of them) .. * push denied .. .. graph-summary: .. .. B'◔⇢ø B .. | | .. A | ø⇠◔ A' .. | |/ .. \| .. ● $ . $TESTDIR/testlib/push-checkheads-util.sh Test setup ---------- $ mkdir D3 $ cd D3 $ setuprepos creating basic server and client repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd server $ mkcommit B0 $ hg up 0 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ cd ../client $ hg pull pulling from $TESTTMP/D3/server (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 up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit A1 created new head $ hg up '0' 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit B1 created new head $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"` $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"` $ hg log -G --hidden @ 25c56d33e4c4 (draft): B1 | | o f6082bc4ffef (draft): A1 |/ | x d73caddc5533 (draft): B0 | | | x 8aaa48160adc (draft): A0 |/ o 1e4be0697311 (public): root Actual testing -------------- $ hg push --rev 'desc(A1)' pushing to $TESTTMP/D3/server (glob) searching for changes abort: push creates new remote head f6082bc4ffef! (merge or see 'hg help push' for details about pushing new heads) [255] $ hg push --rev 'desc(B1)' pushing to $TESTTMP/D3/server (glob) searching for changes abort: push creates new remote head 25c56d33e4c4! (merge or see 'hg help push' for details about pushing new heads) [255] Extra testing ------------- In this case, even a bare push is creating more heads $ hg push pushing to $TESTTMP/D3/server (glob) searching for changes abort: push creates new remote head 25c56d33e4c4! (merge or see 'hg help push' for details about pushing new heads) [255] $ cd ../..