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doc: add description of metric fields for cephfs-top
Fixes: https://tracker.ceph.com/issues/63991 Signed-off-by: Neeraj Pratap Singh <neesingh@redhat.com>
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@ -63,6 +63,62 @@ By default, `cephfs-top` uses `client.fstop` user to connect to a Ceph cluster::
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$ ceph auth get-or-create client.fstop mon 'allow r' mds 'allow r' osd 'allow r' mgr 'allow r'
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$ cephfs-top
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Description of Fields
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---------------------
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1. chit : Cap hit
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Percentage of file capability hits over total number of caps
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2. dlease : Dentry lease
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Percentage of dentry leases handed out over the total dentry lease requests
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3. ofiles : Opened files
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Number of opened files
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4. oicaps : Pinned caps
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Number of pinned caps
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5. oinodes : Opened inodes
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Number of opened inodes
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6. rtio : Total size of read IOs
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Number of bytes read in input/output operations generated by all process
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7. wtio : Total size of write IOs
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Number of bytes written in input/output operations generated by all processes
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8. raio : Average size of read IOs
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Mean of number of bytes read in input/output operations generated by all
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process over total IO done
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9. waio : Average size of write IOs
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Mean of number of bytes written in input/output operations generated by all
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process over total IO done
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10. rsp : Read speed
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Speed of read IOs with respect to the duration since the last refresh of clients
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11. wsp : Write speed
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Speed of write IOs with respect to the duration since the last refresh of clients
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12. rlatavg : Average read latency
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Mean value of the read latencies
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13. rlatsd : Standard deviation (variance) for read latency
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Dispersion of the metric for the read latency relative to its mean
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14. wlatavg : Average write latency
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Mean value of the write latencies
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15. wlatsd : Standard deviation (variance) for write latency
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Dispersion of the metric for the write latency relative to its mean
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16. mlatavg : Average metadata latency
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Mean value of the metadata latencies
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17. mlatsd : Standard deviation (variance) for metadata latency
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Dispersion of the metric for the metadata latency relative to its mean
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Command-Line Options
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--------------------
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