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SubjectRe: [Lse-tech] [RFC] per cpu slab fix to reduce freemiss

Dipankar wrote..
>Isn't it possible to tune the cpucache limit by writing to
>/proc/slabinfo so that you avoid frequent draining of free objects ?
>Am I missing something here ?

Are you referring to raising the per cpu array limit? I don't think you
tune that using /proc/slabinfo. However that does not solve the problem,
it only delays it. It needs to grow/shrink dynamically based on need. I
am not only referring to frequently draining of free objects but also
as a result of this refilling the object array due to subsequent
allocations and so on.


Mala Anand
IBM Linux Technology Center - Kernel Performance
Phone:838-8088; Tie-line:678-8088

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