Re: measure performance / latency in blustore

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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'.

sage
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