[perfmon2] PEBS on Nehalem not supported

Hello, I'd like to collect information about my workload, running on Nehalem, using PEBS, so I use the following command. >> pfmon -e MEM_INST_RETIRED:LATENCY_ABOVE_THRESHOLD --ld-lat-threshold=1 --long-smpl-periods=2000 --short-smpl-periods=200 ./mcf_base inp.in >> load latency threshold not yet

Re: [perfmon2] PEBS on Nehalem not supported

Here is some more additional information pfmon -I detected host CPUs: 8-way 1600MHz/8.0MB -- Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (stepping 4) detected pfmon PMU model: Intel Nehalem detected libpfm PMU model: Intel Nehalem max counters/set: 16 supported pfmon PMU models: [AMD64] [Pentium 4] [