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SubjectRe: Kernel 2.6.13-rc7 Latency Question

On 8/27/05, Justin Piszcz <> wrote:
> These options are self-explanatory:
> x x ( ) No Forced Preemption (Server) x
> x x x ( ) Voluntary Kernel Preemption (Desktop) x
> x x x (X) Preemptible Kernel (Low-Latency Desktop) x x
> It says 100 HZ or 250 HZ is good for SMP systems; however, what if I am
> using a P4 machine with 1 CPU (HT), is 1000HZ still the way to go, as its
> not really 2 *REAL* cpus?

I use 1000HZ on my P4 machine, HT enabled, staircase scheduler.

See LKML topic "Schedulers benchmark" if you want more
information/benchmarks results.

Michal Piotrowski
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