Re: SSD OSDs - more Cores or more GHz

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Hi,

Cores > Frequency

If you think about recovery / scrubbing tasks its better when a cpu core
can be assigned to do this.

Compared to a situation where the same cpu core needs to recovery/scrub
and still deliver the productive content at the same time.

The more you can create a situation where an osd has its "own" cpu core,
the better it is. Modern CPU's are anyway so fast, that even SSDs cant
run the CPU's to their limit.

-- 
Mit freundlichen Gruessen / Best regards

Oliver Dzombic
IP-Interactive

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Am 20.01.2016 um 10:01 schrieb Götz Reinicke - IT Koordinator:
> Hi folks,
> 
> we plan to use more ssd OSDs in our first cluster layout instead of SAS
> osds. (more IO is needed than space)
> 
> short question: What would influence the performance more? more Cores or
> more GHz/Core.
> 
> Or is it as always: Depeds on the total of OSDs/nodes/repl-level/etc ... :)
> 
> If needed, I can give some more detailed information on the layout.
> 
> 	Thansk for feedback . Götz
> 
> 
> 
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