Mercurial > hg
annotate contrib/showstack.py @ 42423:0ae593e791fb
profiling: show actual time spent in hotpath display
To get, for instance:
...
\ 6.6% 4.08s lock.py: __exit__ line 1566: ...
| 6.5% 4.01s exchange.py: close line 1191: ...
| 6.5% 4.01s transaction.py: _active line 1443: ...
| 6.5% 4.01s transaction.py: close line 47: ...
| 6.2% 3.84s scmutil.py: wrapped line 529: ...
| 6.2% 3.81s localrepo.py: wrapper line 2114: ...
| 6.2% 3.81s localrepo.py: updatecaches line 177: ...
...
instead of:
...
\ 6.6% lock.py: __exit__ line 1566: ...
| 6.5% exchange.py: close line 1191: ...
| 6.5% transaction.py: _active line 1443: ...
| 6.5% transaction.py: close line 47: ...
| 6.2% scmutil.py: wrapped line 529: ...
| 6.2% localrepo.py: wrapper line 2114: ...
| 6.2% localrepo.py: updatecaches line 177: ...
...
I find that if it's not displayed, I frequently end up estimating the
numbers by hand.
Differential Revision: https://phab.mercurial-scm.org/D6477
author | Valentin Gatien-Baron <vgatien-baron@janestreet.com> |
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date | Wed, 05 Jun 2019 12:51:21 -0400 |
parents | 6dae1f31c6c9 |
children | 2372284d9457 |
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1 # showstack.py - extension to dump a Python stack trace on signal |
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2 # |
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3 # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) |
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4 r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs) |
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5 """ |
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6 |
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7 from __future__ import absolute_import, print_function |
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8 import signal |
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9 import sys |
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10 import traceback |
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11 |
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12 def sigshow(*args): |
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13 sys.stderr.write("\n") |
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14 traceback.print_stack(args[1], limit=10, file=sys.stderr) |
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15 sys.stderr.write("----\n") |
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16 |
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17 def sigexit(*args): |
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18 sigshow(*args) |
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19 print('alarm!') |
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20 sys.exit(1) |
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21 |
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22 def extsetup(ui): |
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23 signal.signal(signal.SIGQUIT, sigshow) |
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24 signal.signal(signal.SIGALRM, sigexit) |
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25 try: |
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26 signal.signal(signal.SIGINFO, sigshow) |
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27 except AttributeError: |
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28 pass |