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[v3,0/4] ceph: periodically send perf metrics to ceph

Message ID 1592832300-29109-1-git-send-email-xiubli@redhat.com (mailing list archive)
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Series ceph: periodically send perf metrics to ceph | expand

Message

Xiubo Li June 22, 2020, 1:24 p.m. UTC 
From: Xiubo Li <xiubli@redhat.com>

This series is based the previous patches of the metrics in kceph[1]
and mds daemons record and forward client side metrics to manager[2][3].

This will send the caps/read/write/metadata metrics to any available
MDS only once per second as default, which will be the same as the
userland client, or every metric_send_interval seconds, which is a
module parameter, the valid values for metric_send_interval will be
0~5 seconds, 0 means disabled.

And will also send the metric flags to MDS, currently it supports the
cap, read latency, write latency and metadata latency.

Also have pushed this series to github [4].

[1] https://patchwork.kernel.org/project/ceph-devel/list/?series=238907 [Merged]
[2] https://github.com/ceph/ceph/pull/26004 [Merged]
[3] https://github.com/ceph/ceph/pull/35608 [Merged]
[4] https://github.com/lxbsz/ceph-client/commits/perf_metric2

Changed in V3:
- fold "check the METRIC_COLLECT feature before sending metrics" into previous one
- use `enable_send_metrics` on/off switch instead

Changed in V2:
- split the patches into small ones as possible.
- check the METRIC_COLLECT feature before sending metrics
- switch to WARN_ON and bubble up errnos to the callers


Xiubo Li (4):
  ceph: add check_session_state helper and make it global
  ceph: periodically send perf metrics to ceph
  ceph: switch to WARN_ON and bubble up errnos to the callers
  ceph: send client provided metric flags in client metadata

 fs/ceph/mds_client.c         | 152 ++++++++++++++++++++++++++++++++++---------
 fs/ceph/mds_client.h         |   8 ++-
 fs/ceph/metric.c             | 142 ++++++++++++++++++++++++++++++++++++++++
 fs/ceph/metric.h             |  91 ++++++++++++++++++++++++++
 fs/ceph/super.c              |  42 ++++++++++++
 fs/ceph/super.h              |   2 +
 include/linux/ceph/ceph_fs.h |   1 +
 7 files changed, 407 insertions(+), 31 deletions(-)