I found the magic sauce for getting the PMU event counters working in recent upstream code. On the 4460 the EMU clock has to be forced on. A patch for this, and for missing PMU/CTI interrupt mods is being applied to our 3.4 branch now. With this it will be possible to build a kernel with hardware event counters enabled and use perf to collect counter data. Bear in mind there is still nothing we can do to really work around the problem of occasional lost PMU interrupts, as that is a hardware issue.
-- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
