Nintendo 3DS CPU Profiler  4.04
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void nnprofRuntimeControlSetPerformanceCounters ( NN_PROF_PERFCOUNTERGROUP  perfGroup)

Sets which performance counters to record.

In the case of profiling by performance counter, this will control which performance counter is used for sampling.

Parameters
perfGroupA value from the NN_PROF_PERFCOUNTERGROUP enumeration, corresponding to the performance counter groups available in the profiler GUI.