This adds the actual number of samples for bw and iops stats printed
in normal and json fio output. Example for normal output:
bw ( MiB/s): min= 120, max= 3304, per=0.10%, avg=2659.34, stdev=1085.25, samples= 109
iops : min=102776, max=830416, avg=675639.05, stdev=280619.99, samples= 21
Note: This example was created using options
"--write_bw_log=... --log_avg_msec=100 --runtime=11s" (ie. no iops log
written). That is why number of samples differs for IOPs and BW.
Signed-off-by: Andreas Herrmann <aherrmann@xxxxxxxx>
---
stat.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/stat.c b/stat.c
index f39014e..b809129 100644
--- a/stat.c
+++ b/stat.c
@@ -467,12 +467,15 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
}
- log_buf(out, " bw (%5s/s): min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n",
- bw_str, min, max, p_of_agg, mean, dev);
+ log_buf(out, " bw (%5s/s): min=%5lu, max=%5lu, per=%3.2f%%, "
+ "avg=%5.02f, stdev=%5.02f, samples=%5lu\n",
+ bw_str, min, max, p_of_agg, mean, dev,
+ (&ts->bw_stat[ddir])->samples);
}
if (calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
- log_buf(out, " iops : min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n",
- min, max, mean, dev);
+ log_buf(out, " iops : min=%5lu, max=%5lu, "
+ "avg=%5.02f, stdev=%5.02f, samples=%5lu\n",
+ min, max, mean, dev, (&ts->iops_stat[ddir])->samples);
}
}
@@ -1012,6 +1015,8 @@ static void add_ddir_status_json(struct thread_stat *ts,
json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
json_object_add_value_float(dir_object, "bw_mean", mean);
json_object_add_value_float(dir_object, "bw_dev", dev);
+ json_object_add_value_int(dir_object, "bw_samples",
+ (&ts->bw_stat[ddir])->samples);
if (!calc_lat(&ts->iops_stat[ddir], &min, &max, &mean, &dev)) {
min = max = 0;
@@ -1021,6 +1026,8 @@ static void add_ddir_status_json(struct thread_stat *ts,
json_object_add_value_int(dir_object, "iops_max", max);
json_object_add_value_float(dir_object, "iops_mean", mean);
json_object_add_value_float(dir_object, "iops_stddev", dev);
+ json_object_add_value_int(dir_object, "iops_samples",
+ (&ts->iops_stat[ddir])->samples);
}
static void show_thread_status_terse_v2(struct thread_stat *ts,
--
2.7.4
--
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