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ceph: use tracked average r/w/m latencies to display metrics in debugfs

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Signed-off-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Venky Shankar 2022-03-08 07:42:19 -05:00 committed by Ilya Dryomov
parent 54d7b821a3
commit 271251f841
1 changed files with 2 additions and 3 deletions
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5
fs/ceph/debugfs.c
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@ -175,7 +175,7 @@ static int metrics_latency_show(struct seq_file *s, void *p)
struct ceph_fs_client *fsc = s->private;
struct ceph_client_metric *cm = &fsc->mdsc->metric;
struct ceph_metric *m;
s64 total, sum, avg, min, max, sq;
s64 total, avg, min, max, sq;
int i;
seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n");
@ -185,8 +185,7 @@ static int metrics_latency_show(struct seq_file *s, void *p)
m = &cm->metric[i];
spin_lock(&m->lock);
total = m->total;
sum = m->latency_sum;
avg = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum, total) : 0;
avg = m->latency_avg;
min = m->latency_min;
max = m->latency_max;
sq = m->latency_sq_sum;