If you use a reasonable fetch size in the consumer (e.g. 100+KB) or above, you could probably get most of the sequential scan performance from those disks. Do you mean 250 Mbits or MBytes?
Thanks, Jun On Wed, Oct 2, 2013 at 4:35 PM, Graeme Wallace < [email protected]> wrote: > We notice that we get a lot higher performance from Kafka up until the > point where disk reads are taking place. (which is to be expected as its > reading from filesystem cache). > > However, given that we have 12x7200rpm SATA disks configured as jBOD - what > sort of disk read performance should i see reported by dstat when things > are running flat out ? > > I'm seeing 250-340Mb sustained. > > -- > Graeme Wallace > CTO > FareCompare.com > O: 972 588 1414 > M: 214 681 9018 >
