Messages in this thread | | | Date | Wed, 10 Jun 2009 03:26:05 +0200 | From | Ingo Molnar <> | Subject | Re: [benchmark] 1% performance overhead of paravirt_ops on native kernels |
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* Paul Mackerras <paulus@samba.org> wrote:
> Ingo Molnar writes: > > > I did this fork overhead measurement some time ago, using > > perfcounters and 'perf': > > Could you post the program? I'd like to try it on some systems > here.
I still have it, it was something really, really simple and silly:
int main(void) { int i;
for (i = 0; i < 8; i++) if (!fork()) wait(0); }
Ingo
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