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- #ifndef __PERF_STATS_H
- #define __PERF_STATS_H
- #include "types.h"
- struct stats
- {
- double n, mean, M2;
- };
- void update_stats(struct stats *stats, u64 val);
- double avg_stats(struct stats *stats);
- double stddev_stats(struct stats *stats);
- double rel_stddev_stats(double stddev, double avg);
- #endif
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