Messages in this thread | | | Date | Fri, 25 Mar 2011 11:12:38 +0100 | From | Tejun Heo <> | Subject | Re: [PATCH 2/2] mutex: Apply adaptive spinning on mutex_trylock() |
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Hello,
On Thu, Mar 24, 2011 at 10:41:51AM +0100, Tejun Heo wrote: > USER SYSTEM SIRQ CXTSW THROUGHPUT > SIMPLE 61107 354977 217 8099529 845.100 MB/sec > SPIN 63140 364888 214 6840527 879.077 MB/sec > > On various runs, the adaptive spinning trylock consistently posts > higher throughput. The amount of difference varies but it outperforms > consistently.
I've been running more of these tests and am having doubts about the consistency. It seems that, even on a fresh filesystem, some random initial condition seems to have persistent effect on the whole run. I'll run more tests and report back.
Thanks.
-- tejun
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