Messages in this thread | | | Date | Wed, 17 Jun 2009 14:37:56 -0700 | From | Jesse Barnes <> | Subject | Re: [PATCH 0/3] make mapped executable pages the first class citizen |
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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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