Hi,
Am 14.12.2017 um 15:02 schrieb Sage Weil:
> On Thu, 14 Dec 2017, Stefan Priebe - Profihost AG wrote:
>>
>> Am 14.12.2017 um 13:22 schrieb Sage Weil:
>>> On Thu, 14 Dec 2017, Stefan Priebe - Profihost AG wrote:
>>>> Hello,
>>>>
>>>> Am 21.11.2017 um 11:06 schrieb Stefan Priebe - Profihost AG:
>>>>> Hello,
>>>>>
>>>>> to measure performance / latency for filestore we used:
>>>>> filestore:apply_latency
>>>>> filestore:commitcycle_latency
>>>>> filestore:journal_latency
>>>>> filestore:queue_transaction_latency_avg
>>>>>
>>>>> What are the correct ones for bluestore?
>>>>
>>>> really nobody? Does nobody track the latency under bluestore?
>>>
>>> I forget the long names off the top of my head, but the interesting
>>> latency measures are marked with a low priority and come up (with a wide
>>> terminal) when you do 'ceph daemonperf osd.N'. You can see the metrics,
>>> pririties, and descriptions with 'ceph daemon osd.N perf schema'.
>>
>> uhuh very long list. Any idea which ones are relevant?
>>
>> ceph daemon osd.8 perf dump
>
> If you do 'perf schema' you'll see a 'priority' property that calls out
> the important ones. That's how the daemonperf command decides which ones
> to show (based on terminal width and priorities).
>
> sage
So i would start using:
"throttle_lat": {
"type": 5,
"priority": 10
"submit_lat": {
"type": 5,
"priority": 10
"commit_lat": {
"type": 5,
"priority": 10
"read_lat": {
"type": 5,
"priority": 10
But i'm not able to find any hints about those values and their meaning.
Greets,
Stefan
>
>
> >
>> shows me a lot of stuff and even a lot of wait or latancy values.
>>
>> ceph daemon osd.8 perf dump | egrep "wait|lat"
>> "kv_flush_lat": {
>> "kv_commit_lat": {
>> "kv_lat": {
>> "state_prepare_lat": {
>> "state_aio_wait_lat": {
>> "state_io_done_lat": {
>> "state_kv_queued_lat": {
>> "state_kv_commiting_lat": {
>> "state_kv_done_lat": {
>> "state_deferred_queued_lat": {
>> "state_deferred_aio_wait_lat": {
>> "state_deferred_cleanup_lat": {
>> "state_finishing_lat": {
>> "state_done_lat": {
>> "throttle_lat": {
>> "submit_lat": {
>> "commit_lat": {
>> "read_lat": {
>> "read_onode_meta_lat": {
>> "read_wait_aio_lat": {
>> "compress_lat": {
>> "decompress_lat": {
>> "csum_lat": {
>> "complete_latency": {
>> "complete_latency": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "op_latency": {
>> "op_process_latency": {
>> "op_prepare_latency": {
>> "op_r_latency": {
>> "op_r_process_latency": {
>> "op_r_prepare_latency": {
>> "op_w_latency": {
>> "op_w_process_latency": {
>> "op_w_prepare_latency": {
>> "op_rw_latency": {
>> "op_rw_process_latency": {
>> "op_rw_prepare_latency": {
>> "op_before_queue_op_lat": {
>> "op_before_dequeue_op_lat": {
>> "subop_latency": {
>> "subop_w_latency": {
>> "subop_pull_latency": {
>> "subop_push_latency": {
>> "osd_tier_flush_lat": {
>> "osd_tier_promote_lat": {
>> "osd_tier_r_lat": {
>> "initial_latency": {
>> "started_latency": {
>> "reset_latency": {
>> "start_latency": {
>> "primary_latency": {
>> "peering_latency": {
>> "backfilling_latency": {
>> "waitremotebackfillreserved_latency": {
>> "waitlocalbackfillreserved_latency": {
>> "notbackfilling_latency": {
>> "repnotrecovering_latency": {
>> "repwaitrecoveryreserved_latency": {
>> "repwaitbackfillreserved_latency": {
>> "reprecovering_latency": {
>> "activating_latency": {
>> "waitlocalrecoveryreserved_latency": {
>> "waitremoterecoveryreserved_latency": {
>> "recovering_latency": {
>> "recovered_latency": {
>> "clean_latency": {
>> "active_latency": {
>> "replicaactive_latency": {
>> "stray_latency": {
>> "getinfo_latency": {
>> "getlog_latency": {
>> "waitactingchange_latency": {
>> "incomplete_latency": {
>> "down_latency": {
>> "getmissing_latency": {
>> "waitupthru_latency": {
>> "notrecovering_latency": {
>> "get_latency": {
>> "submit_latency": {
>> "submit_sync_latency": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>> "wait": {
>>
>> Stefan
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>>
>>
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