On 05/13/2010 05:35 PM, Stefan Hajnoczi wrote:
How to count and trace KVM perf events:
http://www.linux-kvm.org/page/Perf_events
I want to draw attention to this because traditional kvm_stat and
kvm_trace use has been moving over to the debugfs based tracing
mechanisms. Perhaps we can flesh out documentation and examples of
common perf event usage.
Two things are missing to make this really useful:
- a continuously updating difference mode like kvm_stat
- subevents; for example kvm:kvm_exit is an aggregate of all exit types
that can be split using filters to show individual exit reason statistics
The plan is to eventually remove kvm_stat based performance monitoring
in favour of perf events.
--
error compiling committee.c: too many arguments to function
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