Messages in this thread | | | Date | Tue, 12 May 2009 16:17:27 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH -mm] vmscan: protect a fraction of file backed mapped pages from reclaim |
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Christoph Lameter wrote: > On Tue, 12 May 2009, Rik van Riel wrote: > >>> Streaming I/O means access once? >> Yeah, "used-once pages" would be a better criteria, since >> you could go through a gigantic set of used-once pages without >> doing linear IO. > > Can we see some load for which this patch has a beneficial effect? > With some numbers?
How many do you want before you're satisfied that this benefits a significant number of workloads?
How many numbers do you want to feel safe that no workloads suffer badly from this patch?
Also, wow would you measure a concept as nebulous as desktop interactivity?
Btw, the patch has gone into the Fedora kernel RPM to get a good amount of user testing. I'll let you know what the users say (if anything).
-- All rights reversed.
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