upstream/mercurial-mirror Files · tests/test-no-symlinks.t

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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      #require no-symlink

      # The following script was used to create the bundle:

      #

      # hg init symlinks

      # cd symlinks

      # echo a > a

      # mkdir d

      # echo b > d/b

      # ln -s a a.lnk

      # ln -s d/b d/b.lnk

      # hg ci -Am t

      # hg bundle --base null ../test-no-symlinks.hg

      Extract a symlink on a platform not supporting them

        $ hg init t

        $ cd t

        $ hg pull -q "$TESTDIR/bundles/test-no-symlinks.hg"

        $ hg update

        4 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cat a.lnk && echo

        a

        $ cat d/b.lnk && echo

        d/b

      Copy a symlink and move another

        $ hg copy a.lnk d/a2.lnk

        $ hg mv d/b.lnk b2.lnk

        $ hg ci -Am copy

        $ cat d/a2.lnk && echo

        a

        $ cat b2.lnk && echo

        d/b

      Bundle and extract again

        $ hg bundle --base null ../symlinks.hg

        2 changesets found

        $ cd ..

        $ hg init t2

        $ cd t2

        $ hg pull ../symlinks.hg

        pulling from ../symlinks.hg

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 6 changes to 6 files

        (run 'hg update' to get a working copy)

        $ hg update

        5 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cat a.lnk && echo

        a

        $ cat d/a2.lnk && echo

        a

        $ cat b2.lnk && echo

        d/b

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				#require no-symlink

				# The following script was used to create the bundle:
				#
				# hg init symlinks
				# cd symlinks
				# echo a > a
				# mkdir d
				# echo b > d/b
				# ln -s a a.lnk
				# ln -s d/b d/b.lnk
				# hg ci -Am t
				# hg bundle --base null ../test-no-symlinks.hg

				Extract a symlink on a platform not supporting them

				$ hg init t
				$ cd t
				$ hg pull -q "$TESTDIR/bundles/test-no-symlinks.hg"
				$ hg update
				4 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cat a.lnk && echo
				a
				$ cat d/b.lnk && echo
				d/b

				Copy a symlink and move another

				$ hg copy a.lnk d/a2.lnk
				$ hg mv d/b.lnk b2.lnk
				$ hg ci -Am copy
				$ cat d/a2.lnk && echo
				a
				$ cat b2.lnk && echo
				d/b

				Bundle and extract again

				$ hg bundle --base null ../symlinks.hg
				2 changesets found
				$ cd ..
				$ hg init t2
				$ cd t2
				$ hg pull ../symlinks.hg
				pulling from ../symlinks.hg
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 6 changes to 6 files
				(run 'hg update' to get a working copy)
				$ hg update
				5 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cat a.lnk && echo
				a
				$ cat d/a2.lnk && echo
				a
				$ cat b2.lnk && echo
				d/b