gstripe performance scaling with many disks
R. B. Riddick
arne_woerner at yahoo.com
Fri Dec 29 06:26:39 PST 2006
--- Ivan Voras <ivoras at 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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