On Wed, May 25, 2005 at 03:33:39PM -0700, Jon Dama wrote: > Could this be quantified by setting up a synthetic experiement: > > 1) one machine uses dummynet to generate a uniform packet/sec stream > 2) another machine has a process receiving those packets and recording > their arrival relative to the local TSC. afaik, the TSC is the only > source of wall-time that doesn't involve a system call. Is that right? > Are the TSCs synchronized on SMP systems? > 3) Generate another source of activity on the receiving machine to > estimate the effect of PREEMPTION relative to the (lack of) quiescence. > 4) use the jitter in the TSC deltas to infer the effect of preemption
That would be attempting to benchmark something entirely different. Kris
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