Messages in this thread | | | Date | Fri, 13 May 2011 09:35:33 -0600 | From | David Ahern <> | Subject | Re: perf-stat per thread results |
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On 05/13/11 09:14, Wim Heirman wrote: > Hi all, > > I'm using perf-stat to look at hardware performance counters for a > parallel program. Is there a way to get counter values for each thread > individually, rather than aggregated for the whole process? I know I > can attach to a specific thread using --tid=, but due to the time > required to find the tid and attach/detach this isn't accurate for > short-running programs.
perf-stat requires changes to dump counters per thread; it currently sums all threads into a single value.
> Or, alternatively, can I use perf record --stat and get an exact count > for each performance counter?
perf-record does not read values from hardware counters.
David
> > Thanks, > Wim Heirman > Ghent University, Belgium > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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