Messages in this thread | | | Date | Thu, 04 Sep 2003 10:54:26 +1000 | From | Nick Piggin <> | Subject | Re: UP Regression (was) Re: Scaling noise |
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Cliff White wrote:
>[snip] >. > >>I don't think anyone advocates sacrificing UP performance for 32 ways, but >>as he says it can happen .1% at a time. >> >>But it looks like 2.6 will scale well to 16 way and higher. I wonder if >>there are many regressions from 2.4 or 2.2 on small systems. >> >> >> >On the Scalable Test Platform, running osdl-aim-7, for the >UP case, 2.4 is a bit better than 2.6, this is consistent across >many runs. For SMP, 2.6 is better, but the delta is rather >small, until we get to 8 CPUS. We have a lot of un-parsed data from other >tests - might be some trends there also. >See http://developer.osdl.org/cliffw/reaim/index.html >2.4 kernels are at the bottom of the page. >
Forgive my ignorance of your benchmarks, but this might very well be HZ == 1000?
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