Messages in this thread | | | Date | Mon, 15 Nov 2010 12:31:48 +0100 | From | Andi Kleen <> | Subject | Re: [PATCH 1/2] perf-events: Add support for supplementary event registers v2 |
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> Why would you want to measure both at the same time? > Because you can measure two distinct request/response in one run. > > If you want to measure both you need to create two distinct perf events.
What I did currently was to assign some cache events to 0xb7 and others to bb on Westmere. That's a bit arbitrary, but allows to measure some common combinations together at least.
In theory one could teach the scheduler that these events are equivalent, but that seems like too much complexity for me currently. -Andi
-- ak@linux.intel.com -- Speaking for myself only.
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