Mercurial > hg
view tests/test-rename-merge1 @ 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 | 6c82beaaa11a |
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#!/bin/sh mkdir t cd t hg init echo "[merge]" >> .hg/hgrc echo "followcopies = 1" >> .hg/hgrc echo foo > a echo foo > a2 hg add a a2 hg ci -m "start" -d "0 0" hg mv a b hg mv a2 b2 hg ci -m "rename" -d "0 0" echo "checkout" hg co 0 echo blahblah > a echo blahblah > a2 hg mv a2 c2 hg ci -m "modify" -d "0 0" echo "merge" hg merge -y --debug hg status -AC cat b hg ci -m "merge" -d "0 0" hg debugindex .hg/store/data/b.i hg debugrename b