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authorVenky Shankar <vshankar@redhat.com>2022-03-08 15:42:19 +0300
committerIlya Dryomov <idryomov@gmail.com>2022-03-21 15:35:16 +0300
commit271251f841a53ce20c4e49047278e06c205a8ebd (patch)
treeff6e13ecf8430f87641b42010401ca32a10f1d60 /fs/ceph
parent54d7b821a37fdb805ffc8545e536fb228c1113b2 (diff)
downloadlinux-271251f841a53ce20c4e49047278e06c205a8ebd.tar.xz
ceph: use tracked average r/w/m latencies to display metrics in debugfs
Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/debugfs.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 3cf7c9c1085b..bec3c4549c07 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -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;