[Mono-devel-list] String::Equals Performance
bmaurer at ximian.com
Sat Jul 3 20:25:20 EDT 2004
(I assume you did not mean to continue the OOo thread)
On Sat, 2004-07-03 at 19:35, Andreas Nahr wrote:
> this is a patch to speedup the Equals - Function of String.
> Perfomance gain is from about 10% for a small string with few needed
> compares to more that 300% for a string with 100 chars length that is equal.
One thing that I found while working on this function was that we often
had mispredicted branches because of the
construct. One thing you might want to try is replacing that with:
rfalse: return false;
Just doing that got me a fairly large boost on the existing code base.
Also, please attach your benchmarks. I would like to be able to
reproduce your numbers on my box.
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