> > I'm running the r193133 amd64 with a custom kernel and all debugging off > on an AMD Athlon64 3400+ single-core, and I haven't noticed any significant > slowing, although I haven't been doing any systematic benchmarking. > > What would be the penalties of running an SMP -CURRENT kernel on > single-core hardware with no hyperthreading? Can anyone quantify the > typical added overhead? Or, counterintuitively, would an SMP kernel > be better in some ways? > He is trying to diagnose if the problem was introduced by enabling adaptive spinning on sx locks. They're only enabled on SMP kernels. Cheers, KipReceived on Sun May 31 2009 - 01:55:22 UTC
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