Messages in this thread | | | Date | Sat, 15 Aug 2009 23:56:39 -0400 | From | Rik van Riel <> | Subject | Re: [RFC] respect the referenced bit of KVM guest pages? |
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Wu Fengguang wrote:
> Right, but I meant busty page allocations and accesses on them, which > can make a large continuous segment of referenced pages in LRU list, > say 50MB. They may or may not be valuable as a whole, however a local > algorithm may keep the first 4MB and drop the remaining 46MB.
I wonder if the problem is that we simply do not keep a large enough inactive list in Jeff's test. If we do not, pages do not have a chance to be referenced again before the reclaim code comes in.
The cgroup stats should show how many active anon and inactive anon pages there are in the cgroup.
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