Mercurial > hg
view contrib/tcsh_completion_build.sh @ 35599:af25237be091
perf: add threading capability to perfbdiff
Since we are releasing the GIL during diffing, it is interesting to see how a
thread pool would perform on diffing. We add a new `--threads` argument to
commands. Synchronizing the thread pool is a bit complex because we want to be
able to reuse it from one run to another.
On my computer (i7 with 4 cores + hyperthreading), I get the following data for
about 12000 revisions:
threads wall comb wall gain comb overhead
none 31.596715 31.59 0.00% 0.00%
1 31.621228 31.62 -0.08% 0.09%
2 16.406202 32.8 48.08% 3.83%
3 11.598334 34.76 63.29% 10.03%
4 9.205421 36.77 70.87% 16.40%
5 8.517604 42.51 73.04% 34.57%
6 7.94645 47.58 74.85% 50.62%
7 7.434972 51.92 76.47% 64.36%
8 7.070638 55.34 77.62% 75.18%
Compared to the feature disabled (threads=0), the overhead is negligible with
the threading code (threads=1), and the gain is already 48% with two threads.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Sun, 17 Dec 2017 04:31:27 +0100 |
parents | 2616325766e3 |
children |
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#!/bin/sh # # tcsh_completion_build.sh - script to generate tcsh completion # # # Copyright (C) 2005 TK Soh. # # This is free software; you can redistribute it and/or modify it under # the terms of the GNU General Public License as published by the Free # Software Foundation; either version 2 of the License, or (at your # option) any later version. # # # Description # ----------- # This script generates a tcsh source file to support completion # of Mercurial commands and options. # # Instruction: # ----------- # Run this script to generate the tcsh source file, and source # the file to add command completion support for Mercurial. # # tcsh% tcsh_completion.sh FILE # tcsh% source FILE # # If FILE is not specified, tcsh_completion will be generated. # # Bugs: # ---- # 1. command specific options are not supported # 2. hg commands must be specified immediately after 'hg'. # tcsh_file=${1-tcsh_completion} hg_commands=`hg --debug help | \ sed -e '1,/^list of commands:/d' \ -e '/^enabled extensions:/,$d' \ -e '/^additional help topics:/,$d' \ -e '/^ [^ ]/!d; s/[,:]//g;' | \ xargs -n5 | \ sed -e '$!s/$/ \\\\/g; 2,$s/^ */ /g'` hg_global_options=`hg -v help | \ sed -e '1,/global/d;/^ *-/!d; s/ [^- ].*//' | \ sed -e 's/ *$//; $!s/$/ \\\\/g; 2,$s/^ */ /g'` hg_version=`hg version | sed -e '1q'` script_name=`basename $0` cat > $tcsh_file <<END # # tcsh completion for Mercurial # # This file has been auto-generated by $script_name for # $hg_version # # Copyright (C) 2005 TK Soh. # # This is free software; you can redistribute it and/or modify it under # the terms of the GNU General Public License as published by the Free # Software Foundation; either version 2 of the License, or (at your # option) any later version. # complete hg \\ 'n/--cwd/d/' 'n/-R/d/' 'n/--repository/d/' \\ 'C/-/($hg_global_options)/' \\ 'p/1/($hg_commands)/' END