diff options
| author | Xiubo Li <xiubli@redhat.com> | 2020-03-20 06:45:02 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-06-01 14:22:51 +0300 |
| commit | 70c948206f0616c7e46130a26165b6a5d98bade4 (patch) | |
| tree | e494d909a6cff5bbffd2404ba5188ed46af2fbd8 /fs/ceph/mds_client.c | |
| parent | 97e27aaa9a2cbd6238c66b3251d397e0eacc9968 (diff) | |
| download | linux-70c948206f0616c7e46130a26165b6a5d98bade4.tar.xz | |
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/mds_client.c')
| -rw-r--r-- | fs/ceph/mds_client.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 39a27c56411a..20fab5c72d39 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -10,6 +10,7 @@ #include <linux/seq_file.h> #include <linux/ratelimit.h> #include <linux/bits.h> +#include <linux/ktime.h> #include "super.h" #include "mds_client.h" @@ -2201,6 +2202,7 @@ ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode) mutex_init(&req->r_fill_mutex); req->r_mdsc = mdsc; req->r_started = jiffies; + req->r_start_latency = ktime_get(); req->r_resend_mds = -1; INIT_LIST_HEAD(&req->r_unsafe_dir_item); INIT_LIST_HEAD(&req->r_unsafe_target_item); @@ -2547,6 +2549,8 @@ out: static void complete_request(struct ceph_mds_client *mdsc, struct ceph_mds_request *req) { + req->r_end_latency = ktime_get(); + if (req->r_callback) req->r_callback(mdsc, req); complete_all(&req->r_completion); @@ -3155,6 +3159,9 @@ out_err: /* kick calling process */ complete_request(mdsc, req); + + ceph_update_metadata_latency(&mdsc->metric, req->r_start_latency, + req->r_end_latency, err); out: ceph_mdsc_put_request(req); return; |