I am having trouble running perf on aws(Ubuntu 14.04.4) . It seems that none of the hardware events are supported. Any idea what's going on? I am using a dedicated instance.
Here's an example:
$ perf stat sleep 4
Performance counter stats for '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