Messages in this thread | | | Date | Wed, 24 Jan 2007 23:50:36 +1100 | From | Nick Piggin <> | Subject | Re: [RFC] Limit the size of the pagecache |
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Peter Zijlstra wrote: > On Tue, 2007-01-23 at 16:49 -0800, Christoph Lameter wrote:
>>2. Insure rapid turnaround of pages in the cache.
[...]
> The only maybe valid point would be 2, and I'd like to see if we can't > solve that differently - a better use-once logic comes to mind.
There must be something I'm missing with that point. The faster the turnaround of pagecache pages, the *less* efficiently the pagecache is working (assuming a rapid turnaround means a high rate of pages brought into, then reclaimed from pagecache).
I can't argue that a smaller pagecache will be subject to a higher turnaround given the same workload, but I don't know why that would be a good thing.
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