-void rate_throttle(struct thread_data *td, unsigned long time_spent,
- unsigned int bytes)
-{
- unsigned long usec_cycle;
- unsigned int bs;
-
- if (!td->o.rate && !td->o.rate_iops)
- return;
-
- if (td_rw(td))
- bs = td->o.rw_min_bs;
- else if (td_read(td))
- bs = td->o.min_bs[DDIR_READ];
- else
- bs = td->o.min_bs[DDIR_WRITE];
-
- usec_cycle = td->rate_usec_cycle * (bytes / bs);
-
- if (time_spent < usec_cycle) {
- unsigned long s = usec_cycle - time_spent;
-
- td->rate_pending_usleep += s;
-
- if (td->rate_pending_usleep >= 100000) {
- struct timeval t;
-
- fio_gettime(&t, NULL);
- usec_sleep(td, td->rate_pending_usleep);
- td->rate_pending_usleep -= utime_since_now(&t);
- }
- } else {
- long overtime = time_spent - usec_cycle;
-
- td->rate_pending_usleep -= overtime;
- }
-}
-