Messages in this thread | | | Date | Wed, 22 Feb 2006 12:50:49 -0800 | From | Andrew Morton <> | Subject | Re: [patch] Cache align futex hash buckets |
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Ravikiran G Thirumalai <kiran@scalex86.org> wrote: > > We also collected hash collision statistics for 1024 slots. We found that > 50% of the slots did not take any hit!! So maybe we should revisit the > hashing function before settling on the optimal number of hash slots.
You could try switching from jhash2() to hash_long().
Was there any particular pattern to the unused slots? Not something silly like every second one? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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