Messages in this thread | | | Subject | Re: [perf] howto switch from pfmon | From | Peter Zijlstra <> | Date | Tue, 23 Jun 2009 14:23:20 +0200 |
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On Tue, 2009-06-23 at 14:12 +0200, Andi Kleen wrote: > Brice Goglin <Brice.Goglin@inria.fr> writes: > > > Hello, > > > > I am trying to play with perfcounters in current git (actually in latest > > mmotm). I'd like to reproduce what I previously did with pfmon, but I > > couldn't so far. > > > > Something like > > pfmon --follow-exec 'foobar' -e > > CPU_TO_DRAM_REQUESTS_TO_TARGET_NODE:LOCAL_TO_0,CPU_TO_DRAM_REQUESTS_TO_TARGET_NODE:LOCAL_TO_1 > > -- <shell script> > > gives the number of memory accesses to dram node #0 and #1 for all > > processes whose name matches 'foobar'. > > My understanding based on recent emails on the topic is that the > perfctr gods decreed you are not to do any of this because they cannot > think of a use case for it, therefore none exist.
I wouldn't put it like that.
But we haven't gotten around to implementing uncore pmu stuff -- assuming that is what was meant.
What would be accurate is to say that we think uncore is a lot less interesting that a lot of other pmu features.
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