Re: [RFC] NUMA futex hashing

[Andi Kleen]

Jes Sorensen <jes@xxxxxxx> writes:
> 
> Using that argument, all you need to do is to add the alignment
> ____cacheline_aligned_in_smp to the definition of
> struct futex_hash_bucket and the problem is solved, given that the
> internode cacheline in a NUMA system is defined to be the same as the
> SMP cacheline size.

Yes but it would waste quite a lot of memory and cache.
Wasted cache = slow.

-Andi
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