linux-kernel - Re: [PATCH 0/3] make mapped executable pages the first class citizen

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Message-ID: <20090618012532.GB19732@localhost>
Date:	Thu, 18 Jun 2009 09:25:32 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Rik van Riel <riel@...hat.com>, linux-mm@...ck.org
Subject: Re: [PATCH 0/3] make mapped executable pages the first class
	citizen

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@...radead.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).
> 
> 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!

Thanks,
Fengguang
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