Re: [PATCH v2 1/2] perf/core: Share an event with multiple cgroups

Hi Namhyung, I love your patch! Perhaps something to improve: [auto build test WARNING on tip/perf/core] [also build test WARNING on tip/master linux/master linus/master v5.12-rc7 next-20210413] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we

Re: [PATCH v2 1/2] perf/core: Share an event with multiple cgroups

Hi Namhyung, I love your patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on tip/master linux/master linus/master v5.12-rc7 next-20210412] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest

Re: [PATCH v2 1/2] perf/core: Share an event with multiple cgroups

Hi Namhyung, I love your patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on tip/master linux/master linus/master v5.12-rc7 next-20210412] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest

[PATCH v2 1/2] perf/core: Share an event with multiple cgroups

As we can run many jobs (in container) on a big machine, we want to measure each job's performance during the run. To do that, the perf_event can be associated to a cgroup to measure it only. However such cgroup events need to be opened separately and it causes significant overhead in event multi