Messages in this thread | | | Date | Tue, 23 Jun 2009 16:00:21 +0200 | From | Brice Goglin <> | Subject | Re: [perf] howto switch from pfmon |
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Ingo Molnar wrote: > * Ingo Molnar <mingo@elte.hu> wrote: > > >> $ perf stat -e cycles -e instructions -e r1000ffe0 ./hackbench 10 >> Time: 0.186 >> > > Correction: that should be r10000ffe0. >
Oh thanks a lot, it seems to work now!
One strange thing I noticed: sometimes perf reports that there were some accesses to target numa nodes 4-7 while my box only has 4 numa nodes: If I request counters only for the non-existing target numa nodes (4-7, with -e r1000010e0 -e r1000020e0 -e r1000040e0 -e r1000080e0), I always get 4 zeros. But if I mix some couinters from the existing nodes (0-3) with some counters from non-existing nodes (4-7), the non-existing ones report some small but non-empty values. Does it ring any bell?
Brice
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