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From: "Stephen C. Tweedie" <sct@redhat.com>
To: Andrea Arcangeli <andrea@e-mind.com>
Cc: Nimrod Zimerman <zimerman@deskmail.com>,
	Linux Kernel mailing list <linux-kernel@vger.rutgers.edu>,
	linux-mm@kvack.org, Stephen Tweedie <sct@redhat.com>
Subject: Re: VM20 behavior on a 486DX/66Mhz with 16mb of RAM
Date: Tue, 19 Jan 1999 18:02:06 GMT	[thread overview]
Message-ID: <199901191802.SAA05794@dax.scot.redhat.com> (raw)
In-Reply-To: <Pine.LNX.3.96.990116141939.701A-100000@laser.bogus>

Hi,

On Sat, 16 Jan 1999 14:22:10 +0100 (CET), Andrea Arcangeli
<andrea@e-mind.com> said:

> Setting an high limit for the cache when we are low memory is easy doable.
> Comments from other mm guys?

Horrible --- smells like the old problem of "oh, our VM is hopeless at
tuning performance itself, so let's rely on magic numbers to constrain
it to reasonable performance".  I'd much much much much rather see a VM
which manages to work well without having to be constrained by tricks
like that (although by all means supply extra boundary limits for use in
special cases: just don't enable them on a default system).

--Stephen
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  parent reply	other threads:[~1999-01-20  9:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <19990116115459.A7544@hexagon>
1999-01-16 13:22 ` Andrea Arcangeli
1999-01-16 16:37   ` Andrea Arcangeli
1999-01-19 18:02   ` Stephen C. Tweedie [this message]
1999-01-19 20:09     ` John Alvord
1999-01-19 20:35       ` Andrea Arcangeli
1999-01-21 14:47         ` Stephen C. Tweedie
1999-01-21 19:32           ` Andrea Arcangeli
1999-01-23 19:16             ` Stephen C. Tweedie

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