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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.
Pierre-Yves David - - Load All Authors

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test-debugbuilddag.t
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Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 plain
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922
Martin Geisler
test-debugbuilddag: replace unneeded 'rm -rf' with 'rm -r'
 r14278 $ hg init
Martin Geisler
debugbuilddag: output progress information
 r14279 $ hg debugbuilddag '+2:f +3:p2 @temp <f+4 @default /p2 +2' \
> --config extensions.progress= --config progress.assume-tty=1 \
> --config progress.delay=0 --config progress.refresh=0 \
Julien Cristau
tests: disable progress estimate in test-debugbuilddag.t...
 r16368 > --config progress.format=topic,bar,number \
Mads Kiilerich
tests: drop filtercr.py and use the very explicit '\r (no-eol) (esc)' markup
 r17743 > --config progress.width=60
\r (no-eol) (esc)
building [ ] 0/12\r (no-eol) (esc)
building [ ] 0/12\r (no-eol) (esc)
building [==> ] 1/12\r (no-eol) (esc)
building [==> ] 1/12\r (no-eol) (esc)
building [======> ] 2/12\r (no-eol) (esc)
building [=========> ] 3/12\r (no-eol) (esc)
building [=============> ] 4/12\r (no-eol) (esc)
building [=============> ] 4/12\r (no-eol) (esc)
building [=============> ] 4/12\r (no-eol) (esc)
building [================> ] 5/12\r (no-eol) (esc)
building [====================> ] 6/12\r (no-eol) (esc)
building [=======================> ] 7/12\r (no-eol) (esc)
building [===========================> ] 8/12\r (no-eol) (esc)
building [===========================> ] 8/12\r (no-eol) (esc)
building [==============================> ] 9/12\r (no-eol) (esc)
building [==================================> ] 10/12\r (no-eol) (esc)
building [=====================================> ] 11/12\r (no-eol) (esc)
\r (no-eol) (esc)
Martin Geisler
debugbuilddag: output progress information
 r14279
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 tags
$ cat .hg/localtags
66f7d451a68b85ed82ff5fcc254daf50c74144bd f
bebd167eb94d257ace0e814aeb98e6972ed2970d p2
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 dag
$ hg debugdag -t -b
+2:f
+3:p2
@temp*f+3
@default*/p2+2:tip
tip
$ hg id
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 000000000000
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 glog
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev}: {desc} [{branches}] @ {date}\n'
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 o 11: r11 [] @ 11.00
|
o 10: r10 [] @ 10.00
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o 9: r9 [] @ 9.00
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| o 8: r8 [temp] @ 8.00
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| o 7: r7 [temp] @ 7.00
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| o 6: r6 [temp] @ 6.00
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| o 5: r5 [temp] @ 5.00
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o | 4: r4 [] @ 4.00
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o | 3: r3 [] @ 3.00
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o | 2: r2 [] @ 2.00
|/
o 1: r1 [] @ 1.00
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o 0: r0 [] @ 0.00
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 overwritten files, starting on a non-default branch
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163
Martin Geisler
test-debugbuilddag: replace unneeded 'rm -rf' with 'rm -r'
 r14278 $ rm -r .hg
$ hg init
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 $ hg debugbuilddag '@start.@default.:f +3:p2 @temp <f+4 @default /p2 +2' -q -o
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 tags
$ cat .hg/localtags
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 f778700ebd50fcf282b23a4446bd155da6453eb6 f
bbccf169769006e2490efd2a02f11c3d38d462bd p2
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 dag
$ hg debugdag -t -b
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 @start+1
@default+1:f
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 +3:p2
@temp*f+3
@default*/p2+2:tip
tip
$ hg id
000000000000
glog
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev}: {desc} [{branches}] @ {date}\n'
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 o 11: r11 [] @ 11.00
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 |
o 10: r10 [] @ 10.00
|
o 9: r9 [] @ 9.00
|\
| o 8: r8 [temp] @ 8.00
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| o 7: r7 [temp] @ 7.00
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| o 6: r6 [temp] @ 6.00
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| o 5: r5 [temp] @ 5.00
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o | 4: r4 [] @ 4.00
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o | 3: r3 [] @ 3.00
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o | 2: r2 [] @ 2.00
|/
o 1: r1 [] @ 1.00
|
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 o 0: r0 [start] @ 0.00
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922
glog of
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev}: {desc} [{branches}]\n' of
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 o 11: r11 []
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 |
o 10: r10 []
|
o 9: r9 []
|\
| o 8: r8 [temp]
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| o 7: r7 [temp]
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| o 6: r6 [temp]
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| o 5: r5 [temp]
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o | 4: r4 []
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o | 3: r3 []
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o | 2: r2 []
|/
o 1: r1 []
|
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 o 0: r0 [start]
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922
tags
$ hg tags -v
Wagner Bruna
debugbuilddag: fix starting a dag on a non-default branch
 r16219 tip 11:9ffe238a67a2
p2 4:bbccf1697690 local
f 1:f778700ebd50 local
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 cat of
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 $ hg cat of --rev tip
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 r11
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 new and mergeable files
Martin Geisler
test-debugbuilddag: replace unneeded 'rm -rf' with 'rm -r'
 r14278 $ rm -r .hg
$ hg init
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 $ hg debugbuilddag '+2:f +3:p2 @temp <f+4 @default /p2 +2' -q -mn
dag
$ hg debugdag -t -b
+2:f
+3:p2
@temp*f+3
@default*/p2+2:tip
tip
$ hg id
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 000000000000
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 glog
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev}: {desc} [{branches}] @ {date}\n'
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 o 11: r11 [] @ 11.00
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 |
o 10: r10 [] @ 10.00
|
o 9: r9 [] @ 9.00
|\
| o 8: r8 [temp] @ 8.00
| |
| o 7: r7 [temp] @ 7.00
| |
| o 6: r6 [temp] @ 6.00
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| o 5: r5 [temp] @ 5.00
| |
o | 4: r4 [] @ 4.00
| |
o | 3: r3 [] @ 3.00
| |
o | 2: r2 [] @ 2.00
|/
o 1: r1 [] @ 1.00
|
o 0: r0 [] @ 0.00
glog mf
Martin Geisler
tests: don't load unnecessary graphlog extension...
 r20117 $ hg log -G --template '{rev}: {desc} [{branches}]\n' mf
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 o 11: r11 []
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 |
o 10: r10 []
|
o 9: r9 []
|\
| o 8: r8 [temp]
| |
| o 7: r7 [temp]
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| o 6: r6 [temp]
| |
| o 5: r5 [temp]
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o | 4: r4 []
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o | 3: r3 []
| |
o | 2: r2 []
|/
o 1: r1 []
|
o 0: r0 []
man r4
$ hg manifest -r4
mf
nf0
nf1
nf2
nf3
nf4
cat r4 mf
$ hg cat -r4 mf
0 r0
1
2 r1
3
4 r2
5
6 r3
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8 r4
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man r8
$ hg manifest -r8
mf
nf0
nf1
nf5
nf6
nf7
nf8
cat r8 mf
$ hg cat -r8 mf
0 r0
1
2 r1
3
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10 r5
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12 r6
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14 r7
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16 r8
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man
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 $ hg manifest --rev tip
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 mf
nf0
nf1
nf10
nf11
nf2
nf3
nf4
nf5
nf6
nf7
nf8
nf9
cat mf
Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163 $ hg cat mf --rev tip
Pradeepkumar Gayam
tests: unify test-debugbuilddag
 r11922 0 r0
1
2 r1
3
4 r2
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6 r3
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8 r4
9
10 r5
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12 r6
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14 r7
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16 r8
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18 r9
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22 r11
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Peter Arrenbrecht
debugbuilddag: use memctx for speed...
 r14163