if (!td->o.group_reporting) {
steadystate_alloc(td);
+ td->ss.state |= __FIO_SS_DATA;
continue;
}
if (prev_groupid != td->groupid) {
if (prev_td != NULL) {
- prev_td->ss.state |= __FIO_SS_LAST;
+ prev_td->ss.state |= __FIO_SS_DATA;
steadystate_alloc(prev_td);
}
prev_groupid = td->groupid;
}
if (prev_td != NULL && prev_td->o.group_reporting) {
- prev_td->ss.state |= __FIO_SS_LAST;
+ prev_td->ss.state |= __FIO_SS_DATA;
steadystate_alloc(prev_td);
}
}
*/
ss->slope = (ss->sum_xy - (double) ss->sum_x * ss->sum_y / ss->dur) /
(ss->sum_x_sq - (double) ss->sum_x * ss->sum_x / ss->dur);
- if (ss->pct)
+ if (ss->state & __FIO_SS_PCT)
ss->criterion = 100.0 * ss->slope / (ss->sum_y / ss->dur);
else
ss->criterion = ss->slope;
ss->deviation = max(ss->deviation, diff * (diff < 0.0 ? -1.0 : 1.0));
}
- if (ss->pct)
+ if (ss->state & __FIO_SS_PCT)
ss->criterion = 100.0 * ss->deviation / mean;
else
ss->criterion = ss->deviation;
ss->prev_iops = td_iops;
ss->prev_bytes = td_bytes;
- if (td->o.group_reporting && !(ss->state & __FIO_SS_LAST))
+ if (td->o.group_reporting && !(ss->state & __FIO_SS_DATA))
continue;
/*
}
}
-void td_steadystate_init(struct thread_data *td)
+int td_steadystate_init(struct thread_data *td)
{
struct steadystate_data *ss = &td->ss;
struct thread_options *o = &td->o;
+ struct thread_data *td2;
+ int j;
memset(ss, 0, sizeof(*ss));
- if (!o->ss_dur)
- return;
+ if (o->ss_dur) {
+ steadystate_enabled = true;
+ o->ss_dur /= 1000000L;
+
+ /* put all steady state info in one place */
+ ss->dur = o->ss_dur;
+ ss->limit = o->ss_limit.u.f;
+ ss->ramp_time = o->ss_ramp_time;
+
+ ss->state = o->ss;
+ if (!td->ss.ramp_time)
+ ss->state |= __FIO_SS_RAMP_OVER;
+
+ ss->sum_x = o->ss_dur * (o->ss_dur - 1) / 2;
+ ss->sum_x_sq = (o->ss_dur - 1) * (o->ss_dur) * (2*o->ss_dur - 1) / 6;
+
+ td->ts.ss = ss;
+ }
+
+ /* make sure that ss options are consistent within reporting group */
+ for_each_td(td2, j) {
+ if (td2->groupid == td->groupid) {
+ struct steadystate_data *ss2 = &td2->ss;
+
+ if (ss2->dur != ss->dur ||
+ ss2->limit != ss->limit ||
+ ss2->ramp_time != ss->ramp_time ||
+ ss2->state != ss->state ||
+ ss2->sum_x != ss->sum_x ||
+ ss2->sum_x_sq != ss->sum_x_sq) {
+ td_verror(td, EINVAL, "job rejected: steadystate options must be consistent within reporting groups");
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
- steadystate_enabled = true;
- o->ss_dur /= 1000000L;
+unsigned long long steadystate_bw_mean(struct steadystate_data *ss)
+{
+ int i;
+ unsigned long long sum;
- /* put all steady state info in one place */
- ss->dur = o->ss_dur;
- ss->limit = o->ss_limit.u.f;
- ss->ramp_time = o->ss_ramp_time;
- ss->pct = o->ss_pct;
+ for (i = 0, sum = 0; i < ss->dur; i++)
+ sum += ss->bw_data[i];
- ss->state = o->ss;
- if (!td->ss.ramp_time)
- ss->state |= __FIO_SS_RAMP_OVER;
+ return sum / ss->dur;
+}
+
+unsigned long long steadystate_iops_mean(struct steadystate_data *ss)
+{
+ int i;
+ unsigned long long sum;
- ss->sum_x = o->ss_dur * (o->ss_dur - 1) / 2;
- ss->sum_x_sq = (o->ss_dur - 1) * (o->ss_dur) * (2*o->ss_dur - 1) / 6;
+ for (i = 0, sum = 0; i < ss->dur; i++)
+ sum += ss->iops_data[i];
- td->ts.ss = ss;
+ return sum / ss->dur;
}