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SubjectRe: [PATCH -mm] vmscan: protect a fraction of file backed mapped pages from reclaim
On Tue, 12 May 2009, Rik van Riel wrote:

> How many do you want before you're satisfied that this
> benefits a significant number of workloads?

One would be a good starter.

> 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?

Measure the response to desktop clicks? I.e. retrieve an URL with a
webbrowser that was running when the other load started.

> 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).

I have not seen a single reference to a measurement taken with this patch.

Maybe that is because I have not looked at the threads that discuss
measurements with this patch. Where are they?


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