From: Andrew Morton <akpm@zip.com.au>
To: Rik van Riel <riel@conectiva.com.br>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: nonblocking-vm.patch
Date: Wed, 04 Sep 2002 14:22:31 -0700 [thread overview]
Message-ID: <3D767997.B6B76833@zip.com.au> (raw)
In-Reply-To: <Pine.LNX.4.44L.0209041755030.1857-100000@imladris.surriel.com>
Rik van Riel wrote:
>
> On Wed, 4 Sep 2002, Andrew Morton wrote:
>
> > > get cleaned. We can do this by simply refusing to
> > > scan that zone again for a number of jiffies, say
> > > 1/4 of a second.
> >
> > Well, it may be better to terminate that sleep earlier if IO
> > completes.
>
> But only if enough IO completes. Otherwise we'll just end
> up doing too much scanning for no gain again.
>
Well we want to _find_ the just-completed IO, yes? Which implies
parking it onto the cold end of the inactive list at interrupt
time, or a separate list or something.
But let's look at the instrumentation and the profiles first. I
expect it'll be OK.
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next prev parent reply other threads:[~2002-09-04 21:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-04 10:28 nonblocking-vm.patch Andrew Morton
2002-09-04 13:32 ` nonblocking-vm.patch Rik van Riel
2002-09-04 18:44 ` nonblocking-vm.patch Andrew Morton
2002-09-04 19:42 ` nonblocking-vm.patch Rik van Riel
2002-09-04 20:14 ` nonblocking-vm.patch Andrew Morton
2002-09-04 20:55 ` nonblocking-vm.patch Rik van Riel
2002-09-04 21:22 ` Andrew Morton [this message]
2002-09-04 21:34 ` nonblocking-vm.patch Rik van Riel
2002-09-04 21:46 ` nonblocking-vm.patch Andrew Morton
2002-09-04 22:12 ` nonblocking-vm.patch Rik van Riel
2002-09-04 22:41 ` nonblocking-vm.patch Andrew Morton
2002-09-04 22:46 ` nonblocking-vm.patch Rik van Riel
2002-09-05 5:43 ` nonblocking-vm.patch Andrew Morton
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