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From: mash@mips.COM (John Mashey)
Newsgroups: comp.arch
Subject: Re: ~8-job "knee" in response curves on Suns (was Re: IBM RS6000)
Message-ID: <44990@mips.mips.COM>
Date: 17 Jan 91 22:46:38 GMT
References: <1991Jan10.214122.9506@news.arc.nasa.gov> <amos.663857722@shum> <5257@auspex.auspex.com> <3956@skye.ed.ac.uk>
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Reply-To: mash@mips.COM (John Mashey)
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In article <3956@skye.ed.ac.uk> richard@aiai.UUCP (Richard Tobin) writes:
>I've several times heard about the "knee" in the performance of Suns as
>the number of concurrent processes increases, so I wrote a simple
>benchmark.
>Sun 4/470:
>
>No obvious knee.

>36 : 3500 switches / second

As I recall, the 4[79]0s have 64 contexts, hence knee at 64.
-- 
-john mashey	DISCLAIMER: <generic disclaimer, I speak for me only, etc>
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