Re: SMP kernel on uniprocessor system?

Chris Wedgwood (cw@f00f.org)
Tue, 5 Oct 1999 08:14:04 +1300


> Well for one thing, I would expect your context switching and lock
> primitives to have extra overhead, which would result in overall
> performance degradation. Any extra bookeeping involved in SMP
> increases the probability of cache misses.

Sure... must most linux users (ie. who don't compile their own
kernel, etc.) will probably never notice this. We talking about a few
percent here (perhaps) in terms of system time, which for many people
is only a small fraction of the real-time.

-cw

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