Re: Linux 2.6 context switching and posix threads performancequestion

[Arjan van de Ven]

>  I'm asking for some kind of an authoritative answer
> quite urgently. What is the optimum thread amount on 2 CPU SMP system
> running Linux ?

context switching in linux isn't THAT expensive compared to some other
operating systems, but it's not free either.
The optimum is obviously 2 threads, one for each cpu that processes your
network service in a state machine like way. This is why thttpd beats
apache by 10x if not more.


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