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hgweb: profile HTTP requests...
hgweb: profile HTTP requests Currently, running `hg serve --profile` doesn't yield anything useful: when the process is terminated the profiling output displays results from the main thread, which typically spends most of its time in select.select(). Furthermore, it has no meaningful results from mercurial.* modules because the threads serving HTTP requests don't actually get profiled. This patch teaches the hgweb wsgi applications to profile individual requests. If profiling is enabled, the profiler kicks in after HTTP/WSGI environment processing but before Mercurial's main request processing. The profile results are printed to the configured profiling output. If running `hg serve` from a shell, they will be printed to stderr, just before the HTTP request line is logged. If profiling to a file, we only write a single profile to the file because the file is not opened in append mode. We could add support for appending to files in a future patch if someone wants it. Per request profiling doesn't work with the statprof profiler because internally that profiler collects samples from the thread that *initially* requested profiling be enabled. I have plans to address this by vendoring Facebook's customized statprof and then improving it.
Matt Mackall - - Load All Authors

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r22047:8fb6844a default
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test-permissions.t
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Matt Mackall
tests: change some #ifs to #requires
 r22047 #require unix-permissions no-root
Mads Kiilerich
tests: use 'hghave unix-permissions' for tests that really use chmod...
 r15443
Adrian Buehlmann
combine tests
 r12279 $ hg init t
$ cd t
$ echo foo > a
$ hg add a
$ hg commit -m "1"
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
$ chmod -r .hg/store/data/a.i
Matt Mackall
tests: cleanup exit code handling in unified tests
 r12365 $ hg verify
Adrian Buehlmann
combine tests
 r12279 checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
Mads Kiilerich
tests: remove redundant globs...
 r12640 abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i
Matt Mackall
tests: cleanup exit code handling in unified tests
 r12365 [255]
Adrian Buehlmann
combine tests
 r12279
$ chmod +r .hg/store/data/a.i
Matt Mackall
tests: cleanup exit code handling in unified tests
 r12365 $ hg verify
Adrian Buehlmann
combine tests
 r12279 checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
$ chmod -w .hg/store/data/a.i
$ echo barber > a
Matt Mackall
tests: cleanup exit code handling in unified tests
 r12365 $ hg commit -m "2"
Adrian Buehlmann
combine tests
 r12279 trouble committing a!
Mads Kiilerich
tests: remove redundant globs...
 r12640 abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i
Matt Mackall
tests: cleanup exit code handling in unified tests
 r12365 [255]
Adrian Buehlmann
combine tests
 r12279
$ chmod -w .
$ hg diff --nodates
diff -r 2a18120dc1c9 a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-foo
+barber
$ chmod +w .
$ chmod +w .hg/store/data/a.i
$ mkdir dir
$ touch dir/a
$ hg status
M a
? dir/a
$ chmod -rx dir
$ hg status
dir: Permission denied
M a
Reenable perm to allow deletion:
$ chmod +rx dir
Mads Kiilerich
tests: add missing trailing 'cd ..'...
 r16913 $ cd ..