From: Daniel Phillips <phillips@bonn-fries.net>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Marcelo Tosatti <marcelo@conectiva.com.br>,
lkml <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@conectiva.com.br>
Subject: Re: Inclusion of zoned inactive/free shortage patch
Date: Thu, 19 Jul 2001 18:33:26 +0200 [thread overview]
Message-ID: <01071918332601.00317@starship> (raw)
In-Reply-To: <Pine.LNX.4.33.0107181555181.1237-100000@penguin.transmeta.com> <0107190142450I.12129@starship>
In-Reply-To: <0107190142450I.12129@starship>
On Thursday 19 July 2001 01:42, Daniel Phillips wrote:
> Yes. The inactive shortage needs to be a function of the length of
> the inactive_dirty queue rather than just the amount that free pages
> is less than some fixed minimum.
Oops, it already is, good :-]
> The target length of the
> inactive_dirty queue in turn can be a function of the global free
> shortage (which is where the minimum free numbers get used)
ditto, it's already that way...
> and the transfer rate of the disk(s).
This we don't do, and afaics, this is the only way to get stability
across a really wide range of loads, and on system configurations we
can't possibly pre-tune for.
> Again, experimental - without careful
> work a feedback mechanism like this could oscillate wildly. It's
> most probably the way forward in the long run though.
>
> --
> Daniel
next prev parent reply other threads:[~2001-07-19 16:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-18 0:30 Inclusion of zoned inactive/free shortage patch Marcelo Tosatti
2001-07-18 2:05 ` Linus Torvalds
2001-07-18 1:19 ` Marcelo Tosatti
2001-07-18 3:56 ` Linus Torvalds
2001-07-18 2:56 ` Marcelo Tosatti
2001-07-18 4:55 ` Linus Torvalds
2001-07-18 3:46 ` Marcelo Tosatti
2001-07-18 16:30 ` Linus Torvalds
2001-07-18 20:45 ` Marcelo Tosatti
2001-07-18 22:23 ` Linus Torvalds
2001-07-18 20:58 ` Marcelo Tosatti
2001-07-18 22:50 ` Linus Torvalds
2001-07-18 22:11 ` Marcelo Tosatti
2001-07-18 22:14 ` Marcelo Tosatti
2001-07-19 1:02 ` Linus Torvalds
2001-07-19 7:30 ` Marcelo Tosatti
2001-07-19 17:12 ` Linus Torvalds
2001-07-21 2:55 ` Marcelo Tosatti
2001-07-18 22:57 ` Daniel Phillips
2001-07-18 22:59 ` Linus Torvalds
2001-07-18 23:42 ` Daniel Phillips
2001-07-19 16:33 ` Daniel Phillips [this message]
2001-07-18 13:27 ` Rik van Riel
2001-07-18 13:23 ` Rik van Riel
2001-07-18 18:22 ` Mike Galbraith
2001-07-18 18:39 ` Rik van Riel
2001-07-18 19:25 ` Mike Galbraith
2001-07-18 20:02 ` Rik van Riel
2001-07-18 21:25 ` Marcelo Tosatti
2001-07-18 19:50 ` Marcelo Tosatti
2001-07-18 21:37 ` Rik van Riel
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