2020-12-08 07:09:47 +00:00
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:orphan:
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==========================================
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cephfs-top -- Ceph Filesystem Top Utility
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==========================================
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.. program:: cephfs-top
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Synopsis
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========
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| **cephfs-top** [flags]
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Description
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===========
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**cephfs-top** provides top(1) like functionality for Ceph Filesystem.
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Various client metrics are displayed and updated in realtime.
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Ceph Metadata Servers periodically send client metrics to Ceph Manager.
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``Stats`` plugin in Ceph Manager provides an interface to fetch these metrics.
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Options
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=======
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.. option:: --cluster
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Cluster: Ceph cluster to connect. Defaults to ``ceph``.
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.. option:: --id
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Id: Client used to connect to Ceph cluster. Defaults to ``fstop``.
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.. option:: --selftest
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Perform a selftest. This mode performs a sanity check of ``stats`` module.
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2021-03-31 14:00:03 +00:00
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Descriptions of fields
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======================
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.. describe:: chit
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cap hit rate
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.. describe:: rlat
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read latency
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.. describe:: wlat
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write latency
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.. describe:: mlat
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metadata latency
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.. describe:: dlease
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dentry lease rate
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.. describe:: ofiles
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number of opened files
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.. describe:: oicaps
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number of pinned caps
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.. describe:: oinodes
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number of opened inodes
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2020-12-08 07:09:47 +00:00
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Availability
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============
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**cephfs-top** is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at
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http://ceph.com/ for more information.
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See also
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========
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:doc:`ceph <ceph>`\(8),
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:doc:`ceph-mds <ceph-mds>`\(8)
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