[DRBD-user] drbd-0.7.0 with linux-2.4. slow?
bernd-schubert at web.de
Wed Aug 4 20:56:47 CEST 2004
> maybe redo that with record size 4K, which will give the average latency
> for single blocks, so a good estimate for a round trip time.
> iozone -i0 -s 4M -r 4k -Q [-o -e -c]
> the same with large record size (-r 1M) does not say too much,
> just by comparing, one can see that linear streaming will do much
> better than wait for the commit of every single block...
> my hope for proto A would be that latency is near the unconnected values,
> which should be virtually identical to the values without drbd.
bernd at pc-lenz test>../test1
('iozone -s 4m -r 4k -i0 -o -c -e -Q' in both cases and in a nfs-mounted
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