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From: Andrew Wilson <andrew@aaaaaaaa.demon.co.uk>
Message-Id: <199606261208.NAA00216@aaaaaaaa.demon.co.uk>
Subject: Re: Another try at the vm_pageout.c -stable diff
To: davidg@root.com
Date: Wed, 26 Jun 1996 13:08:44 +0100 (BST)
Cc: dyson@freebsd.org, stable@freebsd.org
In-Reply-To: <199606260337.UAA00265@root.com> from "David Greenman" at Jun 25, 96 08:37:52 pm
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>    Here is yet another diff. This is the product of a discussion I just had
> with John about the nature of some of the performance problems people have
> complained about.
>    This makes a slight change to the policy for bringing pages off of the
> active queue and should make the statistics gather *much* more effective
> in some cases. Please try it out and get back to us. Thanks!
> 
> -DG
>
> David Greenman
> Core-team/Principal Architect, The FreeBSD Project
> 
> (This includes John's other changes, so apply this to a fresh -stable copy of
> vm_pageout.c)

[snip]

No nasty swapping sounds when booting.  xterms etc come up quickly
again with no excess of disk activity.  After about 5 minutes under
openwin xterms refuse to refresh, moving an obscuring window leaves
a big unrendered footprint, mouse cursor can still be moved.  On
exit from openwin the X session hangs everything, rebooted from
the switch.

> Index: vm_pageout.c
> ===================================================================
> RCS file: /home/ncvs/src/sys/vm/vm_pageout.c,v
> retrieving revision 1.51.4.6
> diff -c -r1.51.4.6 vm_pageout.c

Cheers,
Ay.