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From: Daniel Phillips <phillips@arcor.de>
To: Andrew Morton <akpm@digeo.com>, Rik van Riel <riel@conectiva.com.br>
Cc: William Lee Irwin III <wli@holomorphy.com>,
	sfkaplan@cs.amherst.edu, linux-mm@kvack.org
Subject: Re: [PATCH] modified segq for 2.5
Date: Tue, 10 Sep 2002 00:46:50 +0200	[thread overview]
Message-ID: <E17oXIx-0006vb-00@starship> (raw)
In-Reply-To: <3D7C6C0A.1BBEBB2D@digeo.com>

On Monday 09 September 2002 11:38, Andrew Morton wrote:
> One thing this patch did do was to speed up the initial untar of
> the kernel source - 50 seconds down to 25.  That'll be due to not
> having so much dirt on the inactive list.  The "nonblocking page
> reclaim" code (needs a better name...)

Nonblocking kswapd, no?  Perhaps 'kscand' would be a better name, now.

> ...does that in 18 secs.

Woohoo!  I didn't think it would make *that* much difference, did you
dig into why?

My reason for wanting nonblocking kswapd has always been to be able to
untangle the multiple-simultaneous-scanners mess, which we are now in
a good position to do.  Erm, it never occurred to me it would be as easy
as checking whether the page *might* block and skipping it if so.

-- 
Daniel
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  parent reply	other threads:[~2002-09-09 22:46 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-15 14:24 Rik van Riel
2002-09-09  9:38 ` Andrew Morton
2002-09-09 11:40   ` Ed Tomlinson
2002-09-09 17:10     ` William Lee Irwin III
2002-09-09 18:58     ` Andrew Morton
2002-09-09 13:10   ` Rik van Riel
2002-09-09 19:03     ` Andrew Morton
2002-09-09 19:25       ` Rik van Riel
2002-09-09 19:55         ` Andrew Morton
2002-09-09 20:03           ` Rik van Riel
2002-09-09 20:51         ` Andrew Morton
2002-09-09 20:57           ` Andrew Morton
2002-09-09 21:09           ` Rik van Riel
2002-09-09 21:52             ` Andrew Morton
2002-09-09 22:41               ` Rik van Riel
2002-09-10  0:17                 ` Daniel Phillips
2002-09-09 22:49           ` William Lee Irwin III
2002-09-09 22:54             ` Rik van Riel
2002-09-09 23:32               ` William Lee Irwin III
2002-09-09 23:53                 ` Rik van Riel
2002-09-09 22:46   ` Daniel Phillips [this message]
2002-09-09 22:58     ` Andrew Morton
2002-09-09 23:40       ` William Lee Irwin III
2002-09-10  0:02         ` Andrew Morton
2002-09-10  0:21           ` William Lee Irwin III
2002-09-10  1:13             ` Andrew Morton
2002-09-10  1:50       ` Daniel Phillips
2002-09-10  2:02         ` Rik van Riel

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