Patch to use fence instructions
martin at gneto.com
Wed Sep 21 04:45:13 PDT 2005
John Baldwin wrote:
> This patch changes the atomic operations and bus space barriers to use the x86
> fence instructions. Please test, thanks!
What kind of performance improvements can we expect with this patch?
Is it worthwile to compare performance on dualcore Pentium D with
sysbench before and after this patch? Does it affect threads & mutex
Sysbench is a benchmark specially made to determine lowlevel performance
important for MySQL and be found here: http://sysbench.sourceforge.net/
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