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SubjectRe: [patch] Cache align futex hash buckets
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?
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