On Fri, Jul 15, 2016 at 11:08:10AM +0100, Mark Rutland wrote:
> In create_perf_stat_counter, when a target CPU has not been provided, we
> call __perf_evsel__open with empty_cpu_map, and open a single FD per
> thread. However, in read_counter we assume that we opened events for
> the product of thr
In create_perf_stat_counter, when a target CPU has not been provided, we
call __perf_evsel__open with empty_cpu_map, and open a single FD per
thread. However, in read_counter we assume that we opened events for
the product of threads and CPUs described in the evsel's cpu_map.
Thus, if an evsel has
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