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Message-Id: <20070719235157.9715baff.kamezawa.hiroyu@jp.fujitsu.com>
Date: Thu, 19 Jul 2007 23:51:57 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To: Zoltan Menyhart <Zoltan.Menyhart@...l.net>
Cc: linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-mm@...ck.org, tony.luck@...el.com, nickpiggin@...oo.com.au,
mike@...oyan.net, dmosberger@...il.com, y-goto@...fujitsu.com
Subject: Re: [BUGFIX]{PATCH] flush icache on ia64 take2
On Thu, 19 Jul 2007 16:15:03 +0200
Zoltan Menyhart <Zoltan.Menyhart@...l.net> wrote:
> We may have, say 1 Gbyte / sec local i/o activity (using some RAIDs).
> Assume a few % of this 1 Gbyte is the program execution, or program swap in.
> It gives some hundreds of new exec pages / sec =>
> some msec-s can be lost each sec.
>
> I can agree that it should not be a big deal :-)
>
Hmm...but the current code flushes the page. just do it in "lazy" way.
much difference ?
-Kame
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