From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Hajnoczi <stefanha@gmail.com>
Subject: Re: Wiki docs on counting and tracing KVM perf events
Date: Thu, 20 May 2010 13:24:09 +0100
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Cc: Jes Sorensen <Jes.Sorensen@redhat.com>, kvm <kvm@vger.kernel.org>
To: Avi Kivity <avi@redhat.com>
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On Thu, May 20, 2010 at 1:14 PM, Avi Kivity <avi@redhat.com> wrote:
>> echo 1>/sys/kernel/debug/tracing/events/kvm/enable
>> cat /sys/kernel/debug/tracing/trace_pipe>results/trace&
>
> perf will enable the events by itself (no?), so all you need is is the perf
> call in the middle.

Yes, it will enable events.  However, I am also generating a
kvm_trace-like log using trace_pipe.  On this box I couldn't get perf
trace working so I used trace_pipe for the kvm_trace-equivalent and
perf stat for the kvm_stat equivalent.

Stefan