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Use the PERF_RECORD_MISC_EXACT information to measure the success rate of the PEBS fix-up. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.694233760@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>