Thread (72 messages) 72 messages, 13 authors, 2002-07-13

Re: vm lock contention reduction

From: Rik van Riel <hidden>
Date: 2002-07-06 00:11:26

On Fri, 5 Jul 2002, Andrew Morton wrote:
William Lee Irwin III wrote:
quoted
On Thu, Jul 04, 2002 at 07:18:34PM -0700, Andrew Morton wrote:
quoted
Of course, that change means that we wouldn't be able to throttle
page allocators against IO any more, and we'd have to do something
smarter.  What a shame ;)
This is actually necessary IMHO. Some testing I've been able to do seems
to reveal the current throttling mechanism as inadequate.
I don't think so.  If you're referring to the situation where your
4G machine had 3.5G dirty pages without triggering writeback.

That's not a generic problem.
But it is, mmap() and anonymous memory don't trigger writeback.

regards,

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

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