Re: Performance, and how much wiggle room there is with tunables

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On Fri, Nov 10, 2017 at 4:29 AM, Robert Stanford
<rstanford8896@xxxxxxxxx> wrote:
>
>  In my cluster, rados bench shows about 1GB/s bandwidth.  I've done some
> tuning:
>
> [osd]
> osd op threads = 8
> osd disk threads = 4
> osd recovery max active = 7
>
>
> I was hoping to get much better bandwidth.  My network can handle it, and my
> disks are pretty fast as well.  Are there any major tunables I can play with
> to increase what will be reported by "rados bench"?  Am I pretty much stuck
> around the bandwidth it reported?

Are you sure your 1GB/s isn't just the NIC bandwidth limit of the
client you're running rados bench from?

John

>
>  Thank you
>
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