I am wondering the same thing as Joseph (joemp) in the #10 comment. On my Pandaboard, I see that my kernel is configured correctly, and hw perf events come up in dmesg, like so...
$ uname -a Linux pandaboard01 3.2.0-1419-omap4 #26-Ubuntu SMP PREEMPT Wed Sep 12 14:32:40 UTC 2012 armv7l armv7l armv7l GNU/Linux $ grep PERF_EVENTS /boot/config-3.2.0-1419-omap4 CONFIG_HAVE_PERF_EVENTS=y CONFIG_HW_PERF_EVENTS=y CONFIG_PERF_EVENTS=y $ dmesg|grep -i perf [ 0.072387] Initializing cgroup subsys perf_event [ 0.164306] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available ... and yet when I run a `perf stat` command I receive an error: $ sudo perf stat -e cycles ls / Error: open_counter returned with 19 (No such device). /bin/dmesg may provide additional information. Fatal: Not all events could be opened. There is nothing in dmesg. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1018092 Title: Perf test fails on Pandaboard (3.4 TILT) To manage notifications about this bug go to: https://bugs.launchpad.net/linaro-landing-team-ti/+bug/1018092/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
