diff options
| author | Xiubo Li <xiubli@redhat.com> | 2020-03-19 23:45:02 -0400 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-06-01 13:22:51 +0200 |
| commit | 70c948206f0616c7e46130a26165b6a5d98bade4 (patch) | |
| tree | e494d909a6cff5bbffd2404ba5188ed46af2fbd8 /fs/ceph/metric.c | |
| parent | 97e27aaa9a2cbd6238c66b3251d397e0eacc9968 (diff) | |
ceph: add metadata perf metric support
Add a new "r_ended" field to struct ceph_mds_request and use that to
maintain the average latency of MDS requests.
URL: https://tracker.ceph.com/issues/43215
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/metric.c')
| -rw-r--r-- | fs/ceph/metric.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c index f5cf32e7789f..9217f35bc2b9 100644 --- a/fs/ceph/metric.c +++ b/fs/ceph/metric.c @@ -44,6 +44,13 @@ int ceph_metric_init(struct ceph_client_metric *m) m->total_writes = 0; m->write_latency_sum = 0; + spin_lock_init(&m->metadata_latency_lock); + m->metadata_latency_sq_sum = 0; + m->metadata_latency_min = KTIME_MAX; + m->metadata_latency_max = 0; + m->total_metadatas = 0; + m->metadata_latency_sum = 0; + return 0; err_i_caps_mis: @@ -123,3 +130,19 @@ void ceph_update_write_latency(struct ceph_client_metric *m, &m->write_latency_sq_sum, lat); spin_unlock(&m->write_latency_lock); } + +void ceph_update_metadata_latency(struct ceph_client_metric *m, + ktime_t r_start, ktime_t r_end, + int rc) +{ + ktime_t lat = ktime_sub(r_end, r_start); + + if (unlikely(rc && rc != -ENOENT)) + return; + + spin_lock(&m->metadata_latency_lock); + __update_latency(&m->total_metadatas, &m->metadata_latency_sum, + &m->metadata_latency_min, &m->metadata_latency_max, + &m->metadata_latency_sq_sum, lat); + spin_unlock(&m->metadata_latency_lock); +} |