From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Neuner Date: Wed, 30 Apr 2003 18:08:52 +0000 Subject: Re: [Linux-ia64] benchmarking results Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org > >>>>> On Wed, 30 Apr 2003 18:17:45 +0200, "Adriano Galano" said: > > Adriano> We need to find some reference of SMP scalability on Linux > Adriano> scheduler. For 1, 2, 4 and 8 processor. How "lineal" is > Adriano> this scalability? Does Linux perform well en 4 or 8 Itanium > Adriano> 2 architecture? > > David Mosberger wrote: > There is no single answer to the scalability question. It totally > depends on what application you're running. SGI has shown that > certain apps scale very nicely all the way to 64 CPUs on their Altix > box. Kernel-intensive apps won't scale that far, but even there there > is some evendice of very nice scaling. ... Hi Adriano, As David points out, there's a lot of factors that can affect scalability results for a particular workload. If you haven't already, you might want to check out the following from the February 2003 issue of Linux Journal magazine: http://linuxjournal.com/article.php?sidd40, which provides more background on the SGI Altix system along with some scaling and benchmark results. Hope that helps. --steve