anyone measured context-switch cost on Linux/ia32?

[Artur Skawina]

Mikael Pettersson wrote:
> 
> Has anyone measured the cost (in cycles or time) of the
> context-switch path in Linux/ia32?

here, on a celeron and a slightly hacked UP kernel, a context switch
(time between one process stops executing, is preempted, and another
starts running) is ~4800 cycles (10.7us) at best. stock kernels are
probably not much different in this area.


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