Messages in this thread |  | | Date | Sun, 20 Aug 2000 12:53:15 -0700 | From | Ralf Baechle <> | Subject | Re: 2.4.x SMP scalability question. |
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On Fri, Aug 18, 2000 at 05:11:13PM -0400, Mike A. Harris wrote:
> With the 2.4 kernel nearing release, what is the perceived level > of scalability that can usefully be achieved now? How many > processors until you max out performance? If it varies from > architecture to architecture, please indicate the differences. > > Please feel free to point me to URL's discussing this. I'm in a > SMP scalability discussion of sorts, and people believe Linux > can't usefully go past 4 processors. I figured that was true for > 2.2.x but believe 2.4.x scales much further and just want to > share the facts - whatever they may be - with people.
We ran AIM benchmarks on an 32 processor Origin 2000. The results as expected differ wildly between compute bound benchmarks which as expected for a ccNUMA machine scale perfectly and OS intensive workloads such as the AIM SHM benchmark. So in other words without knowing your particular load pattern an anwer can't be given.
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