Messages in this thread | | | Date | Mon, 25 Apr 2016 11:18:05 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 4/4] perf/x86/cqm: Support cqm/mbm only for perf events |
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On Fri, Apr 22, 2016 at 05:27:21PM -0700, Vikas Shivappa wrote: > The cgroup support for cqm is broken. Instead of mapping RMID to a > cgroup currently its mapped to the task and then hence when task moves > cgroup we get incorrect count. > > Also the conflict handling code which is meant to handle the case of > co-existing cgroup and task events, is broken. It reports very > confusing numbers of intermittent zero and some occupancy when perf is > run with cgroup and task events. > > Hence removing support for the parts which are broken rather than > pretending to support it and giving incorrect data.
Uh what, how about attempt to fix it?
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