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SubjectRe: [PATCH 0/3] make mapped executable pages the first class citizen
On Wed, 17 Jun 2009 14:11:35 -0700
Jesse Barnes <jbarnes@virtuousgeek.org> wrote:

> On Sat, 16 May 2009 16:56:16 +0200
> Peter Zijlstra <peterz@infradead.org> wrote:
>
> > On Sat, 2009-05-16 at 17:00 +0800, Wu Fengguang wrote:
> > > Andrew,
> > >
> > > This patchset makes mapped executable pages the first class
> > > citizen. This version has incorparated many valuable comments
> > > from people in the CC list, and runs OK on my desktop. Let's test
> > > it in your -mm?
> >
> > Seems like a good set to me. Thanks for following this through Wu!
>
> Now that this set has hit the mainline I just wanted to chime in and
> say this makes a big difference. Under my current load (a parallel
> kernel build and virtualbox session the old kernel would have been
> totally unusable. With Linus's current bits, things are much better
> (still a little sluggish with a big dd going on in the virtualbox, but
> actually usable).

To really make things better though, I changed from CFQ to deadline on
the disk I'm using. I also changed swappiness to 40 and reduced my
max_sectors_kb (512 -> 64) though...

--
Jesse Barnes, Intel Open Source Technology Center


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