cephfs-top -- Ceph Filesystem Top Utility
Synopsis
Description
cephfs-top provides top(1) like functionality for Ceph Filesystem. Various client metrics are displayed and updated in realtime.
Ceph Metadata Servers periodically send client metrics to Ceph Manager.
Stats
plugin in Ceph Manager provides an interface to fetch these metrics.
Options
- --cluster
Cluster: Ceph cluster to connect. Defaults to
ceph
.
- --id
Id: Client used to connect to Ceph cluster. Defaults to
fstop
.
- --selftest
Perform a selftest. This mode performs a sanity check of
stats
module.
Descriptions of fields
- chit
cap hit rate
- rlat
read latency
- wlat
write latency
- mlat
metadata latency
- dlease
dentry lease rate
- ofiles
number of opened files
- oicaps
number of pinned caps
- oinodes
number of opened inodes
- rtio
total size of read IOs
- wtio
total size of write IOs
- raio
average size of read IOs
- waio
average size of write IOs
- rsp
speed of read IOs compared with the last refresh
- wsp
speed of write IOs compared with the last refresh
Availability
cephfs-top is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at http://ceph.com/ for more information.