I am trying to use perf tool. I have installed ubuntu 12.04 on Pandaboard. After booting up the system, installed linux-tools. Which installed linux-tools-3.0.0-25. running the perf, gives following error.
perf_3.0.0-25 stat ls
Error: open_counter returned with 19 (No such device). /bin/dmesg may provide additional information. Fatal: Not all events could be opened.
How do I fix the above problem? Did anyone get the perf to work on any ubuntu releases on Pandaboard? I can use any build if perf and cpufreq are available. I am a newbie to linux/ubuntu. Any help is appreciated.