Commits
Robert Richter committed 6accb9cf760
perf/x86-ibs: Fix frequency profiling Fixing profiling at a fixed frequency, in this case the freq value and sample period was setup incorrectly. Since sampling periods are adjusted we also allow periods that have lower 4 bits set. Another fix is the setup of the hw counter: If we modify hwc->sample_period, we also need to update hwc->last_period and hwc->period_left. Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1333390758-10893-5-git-send-email-robert.richter@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org>