Re: [PATCH 0/3] make mapped executable pages the first classcitizen

From: Wu Fengguang
Date: Wed Jun 17 2009 - 21:25:59 EST

On Thu, Jun 18, 2009 at 05:11:35AM +0800, Jesse Barnes wrote:
> On Sat, 16 May 2009 16:56:16 +0200
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> 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).
> Thanks!

Jesse, thank you for the feedback :) And I'd like to credit Rik for
his patch on protecting active file LRU pages from being flushed by
streaming IO!

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