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Re: Polishing the cache routines ...

To: Miguel de Icaza <miguel@nuclecu.unam.mx>
Subject: Re: Polishing the cache routines ...
From: Ralf Baechle <ralf@uni-koblenz.de>
Date: Sun, 21 Dec 1997 20:12:07 +0100
Cc: ralf@mailhost.uni-koblenz.de, linux@cthulhu.engr.sgi.com
In-reply-to: <199712211900.NAA18285@athena.nuclecu.unam.mx>; from Miguel de Icaza on Sun, Dec 21, 1997 at 01:00:51PM -0600
References: <19971220224036.52320@uni-koblenz.de> <199712211900.NAA18285@athena.nuclecu.unam.mx>
Sender: owner-linux@cthulhu.engr.sgi.com
On Sun, Dec 21, 1997 at 01:00:51PM -0600, Miguel de Icaza wrote:
> 
> > minor side effects of polishing the cache routines ...
> > 
> >   Ralf
> 
> What exactly did the polishing do?  I saw that we are down in a couple
> of tests.

Most of these values where we went down aren't stable across several
runs.  The improoved values for the exec & sh test however were pretty
stable.  The optimization was getting rid of flushing the second level
cache in r4k_flush_page_to_ram_d32i32().

  Ralf

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