Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH] use local_t for page statistics | Date | Sat, 7 Jan 2006 04:01:47 +0100 |
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On Saturday 07 January 2006 03:52, Nick Piggin wrote:
> No. On many load/store architectures there is no good way to do local_t, > so something like ppc32 or ia64 just uses all atomic operations for
well, they're just broken and need to be fixed to not do that.
Also I bet with some tricks a seqlock like setup could be made to work.
> local_t, and ppc64 uses 3 counters per-cpu thus tripling the cache > footprint.
and ppc64 has big caches so this also shouldn't be a problem.
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