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Date:      Mon, 7 May 2001 15:10:06 -0300 (BRST)
From:      Rik van Riel <riel@conectiva.com.br>
To:        Matt Dillon <dillon@earth.backplane.com>
Cc:        Sheldon Hearn <sheldonh@uunet.co.za>, Kris Kennaway <kris@obsecurity.org>, Dennis Glatting <dennis.glatting@software-munitions.com>, <freebsd-stable@frebsd.org>, <freebsd-current@FreeBSD.ORG>
Subject:   Re: pgm to kill 4.3 via vm 
Message-ID:  <Pine.LNX.4.33.0105071508100.18102-100000@duckman.distro.conectiva>
In-Reply-To: <200105071807.f47I73l62730@earth.backplane.com>

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On Mon, 7 May 2001, Matt Dillon wrote:

> :Indeed, this is an interesting area. In the process of
> :researching how to best implement this for Linux I have
> :found various reasons why both FreeBSD's and NetBSD's
> :load control systems cannot work in various realistic
> :scenarios.
>
>     A
>     load control system is something like... oh, the 20 second enforced swap
>     out that can be triggered when the VM system is under extreme memory
>     pressure.

Yup. Too bad the 20 second enforced swap out isn't enforced...
(at least, not by the code in vm_glue.c)

I'll write up an email about this later this week...

>     Load control is a completely different issue from swap
>     exhaustion.  The two are entirely unrelated to each other.

I know, that's why I only quoted the part of your message that
was about load control and snipped the swap exhaustion part ;)

regards,

Rik
--
Linux MM bugzilla: http://linux-mm.org/bugzilla.shtml

Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

		http://www.surriel.com/
http://www.conectiva.com/	http://distro.conectiva.com/


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