Messages in this thread | | | Date | Thu, 13 Oct 2011 09:15:39 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [PATCH] Reduce vm_stat cacheline contention in __vm_enough_memory |
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On Wed, 12 Oct 2011, Tim Chen wrote:
> Yeah, we have had this discussion on vm_enough_memory before. > > https://lkml.org/lkml/2011/1/26/473 > > The current version of per cpu counter was not really suitable because > the batch size is not appropriate. I've tried to use per cpu counter > with batch size adjusted in my attempt. Andrew has suggested having an > elastic batch size that's proportional to the size of the central > counter but I haven't gotten around to try that out.
These counter are already managed as a ZVC counter. It may be easiest to adjust the batching parameters for those to solve this issue.
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