Date: Wed, 19 Nov 1997 19:40:02 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Stephen Roome <steve@visint.co.uk> Cc: freebsd-smp@freebsd.org Subject: Re: rc564 on SMP Message-ID: <20588.879964802@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 19 Nov 1997 18:10:58 GMT." <Pine.BSF.3.95.971119174808.15331D-100000@dylan.visint.co.uk>
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In message <Pine.BSF.3.95.971119174808.15331D-100000@dylan.visint.co.uk>, Steph en Roome writes: >My desktop P166 (32Mb Ram) not much load at the moment is doing >200kkeys/sec. > >With 2 processes running on a dual processor P133, each process is doing >180kkeys/sec. > >The thing about this is that a p133 doing something like this that I would >have thought of as processor intensive should only get 133/166 the speed >of a P166 (okay so that's obvious). > >But 180,000 / 133 * 166 is 224,000. > >i.e. FreeBSD-SMP on very similar hardware here seems to be actually >outperforming my desktop system. Maybe it's late in the day and I'm >missing something obvious, but it's a nice sign to go home on. =) This is not really CPU limited, but to a large extent CPU <--> RAM speed limited. You probably have different chipsets and or RAM type in the two machines. -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop."
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