Mercurial > hg
view tests/test-mq-pull-from-bundle.t @ 29787:80df04266a16
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.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 14 Aug 2016 18:37:24 -0700 |
parents | ff083040a555 |
children | eb586ed5d8ce |
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$ cat <<EOF >> $HGRCPATH > [extensions] > mq= > [alias] > tlog = log --template "{rev}: {desc}\\n" > theads = heads --template "{rev}: {desc}\\n" > tincoming = incoming --template "{rev}: {desc}\\n" > EOF Setup main: $ hg init base $ cd base $ echo "One" > one $ hg add adding one $ hg ci -m "main: one added" $ echo "++" >> one $ hg ci -m "main: one updated" Bundle main: $ hg bundle --base=null ../main.hg 2 changesets found $ cd .. Incoming to fresh repo: $ hg init fresh $ hg -R fresh tincoming main.hg comparing with main.hg 0: main: one added 1: main: one updated $ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' || true $ hg -R fresh tincoming bundle:fresh+main.hg comparing with bundle:fresh+main.hg 0: main: one added 1: main: one updated Setup queue: $ cd base $ hg qinit -c $ hg qnew -m "patch: two added" two.patch $ echo two > two $ hg add adding two $ hg qrefresh $ hg qcommit -m "queue: two.patch added" $ hg qpop -a popping two.patch patch queue now empty Bundle queue: $ hg -R .hg/patches bundle --base=null ../queue.hgq 1 changesets found $ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' || true $ cd .. Clone base: $ hg clone base copy updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd copy $ hg qinit -c Incoming queue bundle: $ hg -R .hg/patches tincoming ../queue.hgq comparing with ../queue.hgq 0: queue: two.patch added $ test -f .hg/hg-bundle* && echo 'temp. bundle file remained' || true Pull queue bundle: $ hg -R .hg/patches pull --update ../queue.hgq pulling from ../queue.hgq requesting all changes adding changesets adding manifests adding file changes added 1 changesets with 3 changes to 3 files merging series 2 files updated, 1 files merged, 0 files removed, 0 files unresolved $ test -f .hg/patches/hg-bundle* && echo 'temp. bundle file remained' || true $ hg -R .hg/patches theads 0: queue: two.patch added $ hg -R .hg/patches tlog 0: queue: two.patch added $ hg qseries two.patch $ cd .. Clone base again: $ hg clone base copy2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd copy2 $ hg qinit -c Unbundle queue bundle: $ hg -R .hg/patches unbundle --update ../queue.hgq adding changesets adding manifests adding file changes added 1 changesets with 3 changes to 3 files merging series 2 files updated, 1 files merged, 0 files removed, 0 files unresolved $ hg -R .hg/patches theads 0: queue: two.patch added $ hg -R .hg/patches tlog 0: queue: two.patch added $ hg qseries two.patch $ cd ..