Mercurial > hg
view contrib/showstack.py @ 30017:973cf6c3de30
perf: add --reverse to perfrevlog
It can be useful to know how fast we can read revisions from a revlog
in reverse. This operation tends to occur in `hg log` commands,
for example.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 24 Sep 2016 10:44:37 -0700 |
parents | f2fe7b199bb4 |
children | c9eb92fb87b7 |
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# showstack.py - extension to dump a Python stack trace on signal # # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) from __future__ import absolute_import import signal import sys import traceback def sigshow(*args): sys.stderr.write("\n") traceback.print_stack(args[1], limit=10, file=sys.stderr) sys.stderr.write("----\n") def extsetup(ui): signal.signal(signal.SIGQUIT, sigshow) try: signal.signal(signal.SIGINFO, sigshow) except AttributeError: pass