Re: osd and/or filestore tuning for ssds?

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> Op 28 april 2017 om 19:14 schreef Sage Weil <sweil@xxxxxxxxxx>:
> 
> 
> Hi everyone,
> 
> Are there any osd or filestore options that operators are tuning for 
> all-SSD clusters?  If so (and they make sense) we'd like to introduce them 
> as defaults for ssd-backed OSDs.
> 

osd_op_threads and osd_disk_threads. They can be increased to 2x or 4x to get performance improvments on SSDs.

> BlueStore already has different hdd and ssd default values for many 
> options that it chooses based on the type of device; we'd like to do that 
> for other options in either filestore or the OSD if it makes sense.
> 
> Thanks!
> sage
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