From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-mm@kvack.org, mbligh@aracnet.com, piggin@cyberone.com.au
Subject: Re: [PATCH] Do not mark being-truncated-pages as cache hot
Date: Mon, 13 Sep 2004 20:10:46 -0300 [thread overview]
Message-ID: <20040913231046.GB23588@logos.cnet> (raw)
In-Reply-To: <20040913164510.249eb7b1.akpm@osdl.org>
On Mon, Sep 13, 2004 at 04:45:10PM -0700, Andrew Morton wrote:
> Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote:
> >
> > The truncate VM functions use pagevec's for operation batching, but they mark
> > the pagevec used to hold being-truncated-pages as "cache hot".
> >
> > There is nothing which indicates such pages are likely to be "cache hot" - the
> > following patch marks being-truncated-pages as cold instead.
>
> Disagree.
>
> blah > /tmp/foo
> rm /tmp/foo
Well thats sys_unlink(). It does truncate?
Anyway, I think thats not the common case at all.
Hum, it depends on the workload, but still.
But yeah, you have a point.
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next prev parent reply other threads:[~2004-09-13 23:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-13 21:57 Marcelo Tosatti
2004-09-13 23:45 ` Andrew Morton
2004-09-13 23:10 ` Marcelo Tosatti [this message]
2004-09-14 0:03 ` Martin J. Bligh
2004-09-13 23:19 ` Marcelo Tosatti
2004-09-14 1:21 ` Andrew Morton
2004-09-14 10:13 ` Marcelo Tosatti
2004-09-14 0:10 ` Andrew Morton
2004-09-14 0:24 ` Martin J. Bligh
2004-09-13 23:31 ` Marcelo Tosatti
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