+ fprintf(f_out, ";%f%%;%f%%;%lu", usr_cpu, sys_cpu, ts->ctx);
+
+ stat_calc_dist(ts, io_u_dist);
+ stat_calc_lat(ts, io_u_lat);
+
+ fprintf(f_out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]);
+
+ fprintf(f_out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]);
+ fprintf(f_out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]);
+
+ if (ts->description)
+ fprintf(f_out, ";%s", ts->description);
+
+ fprintf(f_out, "\n");
+}
+
+static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
+{
+ double mean, S;
+
+ dst->min_val = min(dst->min_val, src->min_val);
+ dst->max_val = max(dst->max_val, src->max_val);
+ dst->samples += src->samples;
+
+ /*
+ * Needs a new method for calculating stddev, we cannot just
+ * average them we do below for nr > 1
+ */
+ if (nr == 1) {
+ mean = src->mean;
+ S = src->S;
+ } else {
+ mean = ((src->mean * (double) (nr - 1)) + dst->mean) / ((double) nr);
+ S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr);
+ }
+
+ dst->mean = mean;
+ dst->S = S;