linux-kernel - Re: 103 sec. latency: sync_page() with TASK

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Message-Id: <20080322224340.bd08981b.akpm@linux-foundation.org>
Date:	Sat, 22 Mar 2008 22:43:40 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Carlos R. Mafra" <crmafra2@...il.com>,
	linux-kernel@...r.kernel.org, riel@...hat.com, rjw@...k.pl
Subject: Re: 103 sec. latency: sync_page() with TASK_UNINTERRUPTIBLE (?)
 (bisected)

On Sat, 22 Mar 2008 22:41:43 -0700 Andrew Morton <akpm@...ux-foundation.org> wrote:

> > If a revert the above commit from the latest git kernel
> > (v2.6.25-rc6-243-g028011e), then I get an very good interactivity
> > while xjed is loading the 380MB file (meaning that I can do other things
> > during the load). Otherwise it takes almost 3 times longer to load,
> > and interactivity is very bad in the meanwhile. I doubled checked it.

hm.

> 
> Thanks, I queued the below reversion.  It would be great if you could
> confirm that this patch does indeed make 2.6.25-rc6 work as well as 2.6.24.

I guess you've already done this.
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