Re: Large increase in context switch rate

From: Jeremy Fitzhardinge
Date: Thu Jul 17 2008 - 11:03:17 EST

Peter Zijlstra wrote:
Is this specific to Xen?, as a native kernel doesn't do more than ~3k
cs/s with make -j3 on my dual core.

No, it doesn't seem to be. A CONFIG_PARAVIRT kernel running on bare hardware shows the same context switch rate. Merely turning CONFIG_PARAVIRT on should have no effect on context switch rate (though, Alex, it would be worth double-checking, just to be sure).

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