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Date: Wed, 1 Nov 2000 00:54:46 +0100 (CET)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: mingo@elte.hu
To: "Jeff V. Merkey" <jmerkey@timpanogas.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.2.18Pre Lan Performance Rocks!
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On Tue, 31 Oct 2000, Jeff V. Merkey wrote:

> A "context" is usually assued to be a "stack". [...]

a very clintonesque definition indeed ;-)

what is relevant is the latency to switch from one process to another one.
And this is what we call a context switch. It includes scheduling
decisions and all sorts of other stuff. You are comparing stack &
caller-saved register switching performance (which is just a small part of
context switching and has no standing alone) against full Linux context
switch performance (this is what i quoted), and thus you have won my
'Mindcraft benchmark of the day' award :-)

	Ingo

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