Mercurial > hg
view tests/test-pull-permission @ 5339:058e93c3d07d
I have spotted the biggest bottleneck in "bdiff.c". Actually it was
pretty easy to find after I recompiled the python interpreter and
mercurial for profiling.
In "bdiff.c" function "equatelines" allocates the minimum hash table
size, which can lead to tons of collisions. I introduced an
"overcommit" factor of 16, this is, I allocate 16 times more memory
than the minimum value. Overcommiting 128 times does not improve the
performance over the 16-times case.
author | Christoph Spiel <cspiel@freenet.de> |
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date | Thu, 27 Sep 2007 23:57:57 -0500 |
parents | c0b449154a90 |
children | 4c94b6d0fb1c |
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#!/bin/sh mkdir a cd a hg init echo foo > b hg add b hg ci -m "b" -d "1000000 0" chmod -w .hg/store cd .. hg clone a b chmod +w a/.hg/store # let test clean up cd b hg verify