linux - Event "cache-misses" not supported by perf in aws -


i having trouble running perf on aws(ubuntu 14.04.4) . seems none of hardware events supported. idea what's going on? using dedicated instance.

here's example:

$ perf stat sleep 4   performance counter stats 'sleep 4':            0.388772 task-clock (msec)         #    0.000 cpus utilized                            1 context-switches          #    0.003 m/sec                                    0 cpu-migrations            #    0.000 k/sec                                  179 page-faults               #    0.460 m/sec                      <not supported> cycles                      <not supported> stalled-cycles-frontend    <not supported> stalled-cycles-backend    <not supported> instructions                <not supported> branches                    <not supported> branch-misses                    4.000773655 seconds time elapsed

perf version:

$ perf version perf version 3.13.11-ckt39

kernel version:

$ uname -r 3.13.0-92-generic


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