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Date: Tue, 20 Aug 2002 14:13:13 +0200
From: Jakob Oestergaard <jakob@unthought.net>
To: venom@sns.it
Cc: Larry McVoy <lm@bitmover.com>, linux-kernel@vger.kernel.org
Subject: Re: Does Solaris really scale this well?
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On Tue, Aug 20, 2002 at 12:13:44PM +0200, venom@sns.it wrote:
> 
> 80% is quite possible, I have similar results with a E10K domain of
> around 32 CPUs, with a 100mhz bus. Buf 80% is far from 94%...
> 

[shortening CC: to save electrons]

Let's end this thread shall we.

Anyone talking about scalability without talking about workload and
measurement is just spreading BS.

Anyone can get 100% (or even superlinear) scalability on a 1000
processor i486 with a 1 KHz bus, if the workload is right and
performance is measured "right".

The same person can get negative scalability on any THz (my-privates-
are-longer-and-fatter-than-yours)-bus machine out there, if the workload
is again chosen "correctly".

The thread could have gone on-topic, but it didn't   :)

-- 
................................................................
:   jakob@unthought.net   : And I see the elder races,         :
:.........................: putrid forms of man                :
:   Jakob ?stergaard      : See him rise and claim the earth,  :
:        OZ9ABN           : his downfall is at hand.           :
:.........................:............{Konkhra}...............:
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