Hi,
I am trying to use the offcore pmu counters on my Ivy Bridge processor
(model Core-i7 3770) with libpfm 4.5.0. But I always get zero value for
these counters. For example:
task -i -e L2_RQSTS:RFO_MISS,OFFCORE_RESPONSE_0:ANY_REQUEST:ANY_RESPONSE
./cmd 4
65 580 863 L2_RQSTS:RFO_MISS (0,00% scaling, ena=14 842 987 603, run=14 842
987 603)
0 OFFCORE_RESPONSE_1:ANY_REQUEST:ANY_RESPONSE (0,00%
scaling, ena=14 842 987 603, run=14 842 987 603)
The same command with same benchmark works fine on Nehalem and Haswell. My
kernel version is a bit old (3.2.0). Can it be because of that?
Regards
Bhavi
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