Hi,

> Note that not all events support PEBS. This is PMU specific. The kernel
> rejects any attempts to use PEBS on events which do not support it.

$ perf stat -e branches:pp ls
No permission to collect stats.
Consider tweaking /proc/sys/kernel/perf_event_paranoid.

  Does above mean event "branches" does not support PBES? Or something
else?

  Thanks!

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Parallel Processing Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667

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