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From: "John S. Dyson" <dyson@dyson.iquest.net>
Message-Id: <199707092234.RAA01099@dyson.iquest.net>
Subject: Re: PQ_LARGECACHE and page colouring
In-Reply-To: <199707092048.XAA24685@shadows.aeon.net> from mika ruohotie at "Jul 9, 97 11:48:40 pm"
To: bsdhack@shadows.aeon.net (mika ruohotie)
Date: Wed, 9 Jul 1997 17:34:31 -0500 (EST)
Cc: hackers@FreeBSD.ORG
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> > > > if I add options PQ_LARGECACHE to the kernel config file.
> > > something we with 512K cache should use or not?
> > If you have a 512K direct mapped cache, it is significantly
> 
> direct mapped? uh, mine's pipeline burst, fx chipset, soon tx.
> (and 64 megs ram, i know not to use more)
> 
The FX chipset definitely supported directed mapped caching, it is
likely/possible that TX does also.  You'll probably see a perf
increase under most circumstances.  Actually, it manifests itself
as userland CPU operations simply being a little quicker when running
large programs.

John