Re: High vm-exit latencies during kvm boot-up/shutdown

Jan Kiszka
2007-10-24T09:16:07Z

Avi Kivity wrote:
> Jan Kiszka wrote:
>> I ran
>>
>> user/kvmctl user/test/bootstrap user/test/smp.flat
>>
>> with the busy loop hacked into bootstrap, but I got no latency spots
>> this time. And what should I look for in the output of kvm_stat?
>>
>>
>
> The first numeric column is the total number of exits; the second is the
> rate of change (per second). For a spinning workload, both irq_exits
> and exits rate should equal the timer frequency.

It matches roughly, but this isn't surprising given the lack of latency
peaks in this scenario.

Jan

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