Date: Thu, 20 Nov 1997 12:42:42 +0000 (GMT) From: Stephen Roome <steve@visint.co.uk> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: freebsd-smp@freebsd.org Subject: Re: rc564 on SMP Message-ID: <Pine.BSF.3.95.971120124045.17318S-100000@dylan.visint.co.uk> In-Reply-To: <20588.879964802@critter.freebsd.dk>
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On Wed, 19 Nov 1997, Poul-Henning Kamp wrote: > In message <Pine.BSF.3.95.971119174808.15331D-100000@dylan.visint.co.uk>, Steph > en Roome writes: <snip> > >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. I'm not sure this is as in depth an explanation as needed for me to be making sense of this! The chipset in the smp machine is HX, in the UP case it's VX, I wasn't aware there was that much of a speed difference. The RAM is identical 60ns EDO, with the same amount per processor. I'm not too worried about how this is the case, but it's good enough for me anyway! Steve. Steve Roome - Vision Interactive Ltd. Tel:+44(0)117 9730597 Home:+44(0)976 241342 WWW: http://dylan.visint.co.uk/
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