On 02/16/2012 11:52 PM, Pradeep Kumar wrote:
> Xiao,
>
> i tried your perf events patch set on RHEL 6.1 host and failed to trace kvm-events with below error message.
>
> [root@kvm perf]# ./perf kvm-events report
> Warning: unknown op '{'
> Warning: Error: expected type 5 but read 1
> Warning: failed to read event print fmt for hrtimer_start
> Warning: unknown op '{'
> Warning: Error: expected type 5 but read 1
> Warning: failed to read event print fmt for hrtimer_expire_entry
> Analyze events for all VCPUs:
> VM-EXIT Samples Samples% Time% Avg time
> Total Samples:0, Total events handled time:0.00us.
> [root@kvm perf]#
>
Thanks for your try, Pradeep!
It seems that kvm events do not be recorded.
Do your guest was running when kvm-events was executed?
What is the output of "./perf script | grep kvm_*"?
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