Messages in this thread | | | Date | Fri, 24 Jul 2020 07:46:32 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH V7 07/14] perf/core: Add a new PERF_EV_CAP_COEXIST event capability |
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> Something that seems to 'work' is: > '{cycles,cpu/instructions,period=50000/}', so maybe you can make the > group modifier :S use any sampling event if there is one, and otherwise > designate the leader. > > Then you can write things like: > > '{slots, metric1, metric2, cpu/cycles,freq=50000/}:S' > > and then since cycles is specified as a sampling event, it will use > that.
Okay possible, but it makes things more complicated for the user to understand and requires special documentation. Hopefully it's worth it the internal simplification.
-andi
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