Allow period= in perf stat CPU event descriptions.

This avoids the JSON PMU events parser having to know whether its aliases
are for perf stat or perf record.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
1 file changed