Message-ID: <20030829184644.5968.qmail@web12802.mail.yahoo.com>
Date: Fri, 29 Aug 2003 11:46:44 -0700 (PDT)
From: Shantanu Goel <sgoel01@yahoo.com>
Subject: Re: [VM PATCH] Faster reclamation of dirty pages and unused inode/dcache entries in 2.4.22
To: Mike Fedyk <mfedyk@matchmail.com>
Cc: Antonio Vargas <wind@cocodriloo.com>, linux-kernel@vger.kernel.org
In-Reply-To: <20030829180623.GB27023@matchmail.com>
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I prefer to run stock kernels so I don't have as much
experience with the -aa patches.  However, I took a
look at the relevant code in 2.4.22pre7aa1 and I
believe my patch should help there as well.  The
writepage() and page rotation behaviour is similar to
stock 2.4.22 though the inactive_list is per-classzone
in -aa.  I am less sure about the inode/dcache part
though under -aa.

--- Mike Fedyk <mfedyk@matchmail.com> wrote:
> On Fri, Aug 29, 2003 at 10:55:44AM -0700, Shantanu
> Goel wrote:
> > I am not very knowledgeable about
> micro-optimizations.
> >  I'll take your word for it. ;-)  What interests
> me
> > more is whether others notice any performance
> > improvement under swapout with this patch given
> that
> > is on the order of milliseconds.
> 
> But have you compared your patch with the VM patches
> in -aa?  Will your
> patch apply on -aa and make improvements there too?
> 
> In other words: Why would I want to use this patch
> when I could use -aa?
> 


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