[v8,0/5] ceph: add perf metrics support

Message

Xiubo Li Feb. 21, 2020, 7:05 a.m. UTC

From: Xiubo Li <[e-mail]>

Changed in V8:
- address the comments for cap patch from Jeff.

We can get the metrics from the debugfs:

$ cat /sys/kernel/debug/ceph/0c93a60d-5645-4c46-8568-4c8f63db4c7f.client4267/metrics 
item          total       sum_lat(us)     avg_lat(us)
-----------------------------------------------------
read          13          417000          32076
write         42          131205000       3123928
metadata      104         493000          4740

item          total           miss            hit
-------------------------------------------------
d_lease       204             0               918
caps          204             213             368218


Xiubo Li (5):
  ceph: add global dentry lease metric support
  ceph: add caps perf metric for each session
  ceph: add global read latency metric support
  ceph: add global write latency metric support
  ceph: add global metadata perf metric support

 fs/ceph/acl.c                   |   2 +-
 fs/ceph/addr.c                  |  13 ++++
 fs/ceph/caps.c                  |  19 ++++++
 fs/ceph/debugfs.c               |  71 ++++++++++++++++++++--
 fs/ceph/dir.c                   |  21 +++++--
 fs/ceph/file.c                  |  20 +++++++
 fs/ceph/inode.c                 |   4 +-
 fs/ceph/mds_client.c            | 103 +++++++++++++++++++++++++++++++-
 fs/ceph/mds_client.h            |   4 ++
 fs/ceph/metric.h                |  81 +++++++++++++++++++++++++
 fs/ceph/super.h                 |   9 ++-
 fs/ceph/xattr.c                 |   4 +-
 include/linux/ceph/osd_client.h |   1 +
 net/ceph/osd_client.c           |   2 +
 14 files changed, 336 insertions(+), 18 deletions(-)
 create mode 100644 fs/ceph/metric.h