Messages in this thread | | | Subject | Re: High resolution timers and BH processing on -RT | From | Thomas Gleixner <> | Date | Fri, 28 Jan 2005 09:20:10 +0100 |
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On Fri, 2005-01-28 at 05:43 +0100, Ingo Molnar wrote: > * > is this due to algorithmic/PIT-programming overhead, or due to the noise > introduced by other, non-hard-RT timers? I'd guess the later from the > looks of it, but did your test introduce such noise (via networking and > application workloads?). >
Right, it's due to noise by non-RT timers, which I enforced by adding networking and applications.
This adds random timer expires and admittedly the PIT reprogramming overhead is adding portions of that noise.
tglx
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