17 строки
297 B
C
17 строки
297 B
C
|
#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
|