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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.
Jordi Gutiérrez Hermoso - - Load All Authors

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test-bisect3.t
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# Here we create a simple DAG which has just enough of the required
# topology to test all the bisection status labels:
#
# 13--14
# /
# 0--1--2--3---------9--10--11--12
# \ /
# 4--5--6--7--8
$ hg init
$ echo '0' >a
$ hg add a
$ hg ci -u test -d '0 0' -m '0'
$ echo '1' >a
$ hg ci -u test -d '1 0' -m '1'
branch 2-3
$ echo '2' >b
$ hg add b
$ hg ci -u test -d '2 0' -m '2'
$ echo '3' >b
$ hg ci -u test -d '3 0' -m '3'
branch 4-8
$ hg up -r 1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo '4' >c
$ hg add c
$ hg ci -u test -d '4 0' -m '4'
created new head
$ echo '5' >c
$ hg ci -u test -d '5 0' -m '5'
$ echo '6' >c
$ hg ci -u test -d '6 0' -m '6'
$ echo '7' >c
$ hg ci -u test -d '7 0' -m '7'
$ echo '8' >c
$ hg ci -u test -d '8 0' -m '8'
merge
$ hg merge -r 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -u test -d '9 0' -m '9=8+3'
$ echo '10' >a
$ hg ci -u test -d '10 0' -m '10'
$ echo '11' >a
$ hg ci -u test -d '11 0' -m '11'
$ echo '12' >a
$ hg ci -u test -d '12 0' -m '12'
unrelated branch
$ hg up -r 3
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo '13' >d
$ hg add d
$ hg ci -u test -d '13 0' -m '13'
created new head
$ echo '14' >d
$ hg ci -u test -d '14 0' -m '14'
mark changesets
$ hg bisect --reset
$ hg bisect --good 4
$ hg bisect --good 6
$ hg bisect --bad 12
Testing changeset 9:2197c557e14c (6 changesets remaining, ~2 tests)
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg bisect --bad 10
Testing changeset 8:e74a86251f58 (4 changesets remaining, ~2 tests)
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg bisect --skip 7
Testing changeset 8:e74a86251f58 (4 changesets remaining, ~2 tests)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
test template
$ hg log --template '{rev}:{node|short} {bisect}\n'
14:cbf2f3105bbf
13:e07efca37c43
12:98c6b56349c0 bad
11:03f491376e63 bad (implicit)
10:c012b15e2409 bad
9:2197c557e14c untested
8:e74a86251f58 untested
7:a5f87041c899 skipped
6:7d997bedcd8d good
5:2dd1875f1028 good (implicit)
4:2a1daef14cd4 good
3:8417d459b90c ignored
2:e1355ee1f23e ignored
1:ce7c85e06a9f good (implicit)
0:b4e73ffab476 good (implicit)
$ hg log --template '{bisect|shortbisect} {rev}:{node|short}\n'
14:cbf2f3105bbf
13:e07efca37c43
B 12:98c6b56349c0
B 11:03f491376e63
B 10:c012b15e2409
U 9:2197c557e14c
U 8:e74a86251f58
S 7:a5f87041c899
G 6:7d997bedcd8d
G 5:2dd1875f1028
G 4:2a1daef14cd4
I 3:8417d459b90c
I 2:e1355ee1f23e
G 1:ce7c85e06a9f
G 0:b4e73ffab476
test style
$ hg log --style bisect
changeset: 14:cbf2f3105bbf
bisect:
tag: tip
user: test
date: Thu Jan 01 00:00:14 1970 +0000
summary: 14
changeset: 13:e07efca37c43
bisect:
parent: 3:8417d459b90c
user: test
date: Thu Jan 01 00:00:13 1970 +0000
summary: 13
changeset: 12:98c6b56349c0
bisect: bad
user: test
date: Thu Jan 01 00:00:12 1970 +0000
summary: 12
changeset: 11:03f491376e63
bisect: bad (implicit)
user: test
date: Thu Jan 01 00:00:11 1970 +0000
summary: 11
changeset: 10:c012b15e2409
bisect: bad
user: test
date: Thu Jan 01 00:00:10 1970 +0000
summary: 10
changeset: 9:2197c557e14c
bisect: untested
parent: 8:e74a86251f58
parent: 3:8417d459b90c
user: test
date: Thu Jan 01 00:00:09 1970 +0000
summary: 9=8+3
changeset: 8:e74a86251f58
bisect: untested
user: test
date: Thu Jan 01 00:00:08 1970 +0000
summary: 8
changeset: 7:a5f87041c899
bisect: skipped
user: test
date: Thu Jan 01 00:00:07 1970 +0000
summary: 7
changeset: 6:7d997bedcd8d
bisect: good
user: test
date: Thu Jan 01 00:00:06 1970 +0000
summary: 6
changeset: 5:2dd1875f1028
bisect: good (implicit)
user: test
date: Thu Jan 01 00:00:05 1970 +0000
summary: 5
changeset: 4:2a1daef14cd4
bisect: good
parent: 1:ce7c85e06a9f
user: test
date: Thu Jan 01 00:00:04 1970 +0000
summary: 4
changeset: 3:8417d459b90c
bisect: ignored
user: test
date: Thu Jan 01 00:00:03 1970 +0000
summary: 3
changeset: 2:e1355ee1f23e
bisect: ignored
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: 2
changeset: 1:ce7c85e06a9f
bisect: good (implicit)
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: 1
changeset: 0:b4e73ffab476
bisect: good (implicit)
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 0
$ hg log --quiet --style bisect
14:cbf2f3105bbf
13:e07efca37c43
B 12:98c6b56349c0
B 11:03f491376e63
B 10:c012b15e2409
U 9:2197c557e14c
U 8:e74a86251f58
S 7:a5f87041c899
G 6:7d997bedcd8d
G 5:2dd1875f1028
G 4:2a1daef14cd4
I 3:8417d459b90c
I 2:e1355ee1f23e
G 1:ce7c85e06a9f
G 0:b4e73ffab476
$ hg --config extensions.color= --color=debug log --quiet --style bisect
[log.bisect| ] 14:cbf2f3105bbf
[log.bisect| ] 13:e07efca37c43
[log.bisect bisect.bad|B] 12:98c6b56349c0
[log.bisect bisect.bad|B] 11:03f491376e63
[log.bisect bisect.bad|B] 10:c012b15e2409
[log.bisect bisect.untested|U] 9:2197c557e14c
[log.bisect bisect.untested|U] 8:e74a86251f58
[log.bisect bisect.skipped|S] 7:a5f87041c899
[log.bisect bisect.good|G] 6:7d997bedcd8d
[log.bisect bisect.good|G] 5:2dd1875f1028
[log.bisect bisect.good|G] 4:2a1daef14cd4
[log.bisect bisect.ignored|I] 3:8417d459b90c
[log.bisect bisect.ignored|I] 2:e1355ee1f23e
[log.bisect bisect.good|G] 1:ce7c85e06a9f
[log.bisect bisect.good|G] 0:b4e73ffab476