Mercurial > hg > mercurial-crew-with-dirclash
view .hgtags @ 5363:058e93c3d07d
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> |
|---|---|
| date | Thu, 27 Sep 2007 23:57:57 -0500 |
| parents | a084ed4b0c35 |
| children | 040984468440 |
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