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Date: Fri, 29 Dec 2006 06:26:38 -0800 (PST)
From: "R. B. Riddick" <arne_woerner@yahoo.com>
To: Ivan Voras <ivoras@fer.hr>, freebsd-geom@freebsd.org
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Subject: Re: gstripe performance scaling with many disks
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--- Ivan Voras <ivoras@fer.hr> wrote:
> Vasil Dimov wrote:
> > 17 drives:
> > dT: 0.563s  w: 0.500s
> >  L(q)  ops/s    r/s   kBps   ms/r    w/s   kBps   ms/w   %busy Name
> >     5    185    178    848   18.9      0      0    0.0   88.8| ggate100
> 
> Ok, so ops/s is increasing but it's not conclusive. Does anyone know how
> to get KB/t stats for synthetic geom devices?
> 
I would say:
transaction size = (volume per second) / (operations per second)
E. g.:
848KBps/(178r/s) = 4.76KB/op
or
1028KBps/(116r/s) = 8.86KB/op

-Arne


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