--- /dev/null
+#ifndef FIO_STAT_H
+#define FIO_STAT_H
+
+extern void add_clat_sample(struct thread_data *, int, unsigned long);
+extern void add_slat_sample(struct thread_data *, int, unsigned long);
+extern void add_bw_sample(struct thread_data *, int);
+extern void show_run_stats(void);
+extern void init_disk_util(struct thread_data *);
+extern void update_rusage_stat(struct thread_data *);
+extern void update_io_ticks(void);
+extern void disk_util_timer_arm(void);
+#endif