milosz writes:
> iperf test coming out fine, actually...
>
> iperf -s -w 64k
>
> iperf -c -w 64k -t 900 -i 5
>
> [ ID] Interval Transfer Bandwidth
> [ 5] 0.0-899.9 sec 81.1 GBytes 774 Mbits/sec
>
> totally steady. i could probably implement some tweaks to improve it, but
> if i were getting a steady 77% of gigabit i'd be very happy.
>
So you're trying to get from 60% to 77%. IIRC you had some
small amount of reads going on. If you can find out where
those come from and eliminate them that could help.
Did we cover maxrecvdataseglen also ? I've seen this help
throughput using solaris initiator :
iscsiadm list target | grep ^Target | awk '{print $2}' | while read
x ; do
iscsiadm modify target-param -p maxrecvdataseglen=65536 $x
done
-r
> not seeing any cpu saturation with mpstat... nothing unusual other than low
> activity while zfs commits writes to disk (ostensibly this is when the
> transfer rate troughs)...
> --
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