Cephers,
Is there any documents or code definition to explain ceph perf dump? I am a
little confusing about the output, for example, under filestore, there's
journal_latency and apply_latency and each of them has avgcount and sum. I
am not quite sure what's the unit and meaning of the numbers? How can I use
these numbers to tuning my ceph cluster. Thanks a lot.
"filestore": {
"journal_queue_max_ops": 300,
"journal_queue_ops": 0,
"journal_ops": 35893,
"journal_queue_max_bytes": 33554432,
"journal_queue_bytes": 0,
"journal_bytes": 20579009432,
"journal_latency": {
"avgcount": 35893,
"sum": 1213.560761279
},
"journal_wr": 34228,
"journal_wr_bytes": {
"avgcount": 34228,
"sum": 20657713152
},
"journal_full": 0,
"committing": 0,
"commitcycle": 3207,
"commitcycle_interval": {
"avgcount": 3207,
"sum": 16157.379852152
},
"commitcycle_latency": {
"avgcount": 3207,
"sum": 121.892109010
},
"op_queue_max_ops": 50,
"op_queue_ops": 0,
"ops": 35893,
"op_queue_max_bytes": 104857600,
"op_queue_bytes": 0,
"bytes": 20578506930,
"apply_latency": {
"avgcount": 35893,
"sum": 1327.974596287
},
"queue_transaction_latency_avg": {
"avgcount": 35893,
"sum": 0.025993727
}
},
Best Regards
-- Ray
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