Improve latency_target runs
Reset the stats when we have found our target, and then do
another latency_window run with those settings so that the
final results reflect the probed values.
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/stat.h b/stat.h
index 7ad0c9d..bc4f6da 100644
--- a/stat.h
+++ b/stat.h
@@ -224,6 +224,7 @@
extern void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat);
extern void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat);
extern void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist);
+extern void reset_io_stats(struct thread_data *);
static inline int usec_to_msec(unsigned long *min, unsigned long *max,
double *mean, double *dev)