Re: perf event grouping for dummies (was Re: [PATCH] arc: perf: Enable generic "cache-references" and "cache-misses" events)

2016-09-22 Thread Paul Clarke
On 09/22/2016 12:50 PM, Vineet Gupta wrote: On 09/22/2016 12:56 AM, Peter Zijlstra wrote: On Wed, Sep 21, 2016 at 07:43:28PM -0500, Paul Clarke wrote: On 09/20/2016 03:56 PM, Vineet Gupta wrote: On 09/01/2016 01:33 AM, Peter Zijlstra wrote: - is that what perf event grouping is ? Again

Re: perf event grouping for dummies (was Re: [PATCH] arc: perf: Enable generic "cache-references" and "cache-misses" events)

2016-09-21 Thread Paul Clarke
e active simultaneously. I suppose it's possible for the _groups_ to be multiplexed with other events or groups, but the group as a whole will be scheduled together, as a group. If you have a single counter, I don't believe you can support perf event grou