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Date: Tue, 31 Oct 2000 15:50:13 -0700
From: "Jeff V. Merkey" <jmerkey@timpanogas.org>
Organization: TRG, Inc.
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To: Rik van Riel <riel@conectiva.com.br>
CC: Larry McVoy <lm@bitmover.com>, Paul Menage <pmenage@ensim.com>,
        linux-kernel@vger.kernel.org
Subject: Re: 2.2.18Pre Lan Performance Rocks!
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Rik van Riel wrote:
> 
> On Tue, 31 Oct 2000, Jeff V. Merkey wrote:
> > Larry McVoy wrote:
> 
> > > Consider your
> > > recent context switch claims.  Yes, I believe that you can do the moral
> > > equiv of a longjmp() in the kernel in a few cycles, but that isn't a
> > > context switch, at least, it isn't the same a context switch in the
> > > operating system sense.
> 
> > A context switch in anoperating system context in it's simplest for is
> >
> > mov    x, esp
> > mov    esp, y
> 
> > > processes with virtual memory?
> > Yes.
> 
> Maybe you could tell us how long the context switch
> between processes with virtual memory takes, that
> would be a more meaningful comparison...
> 

Rik,

I'll bring down a NetWare 5 server, and snapshot the context switch code
from the NetWare debugger and email to you.

Jeff

> regards,
> 
> Rik
> --
> "What you're running that piece of shit Gnome?!?!"
>        -- Miguel de Icaza, UKUUG 2000
> 
> http://www.conectiva.com/               http://www.surriel.com/
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