Andrew Gallatin wrote:
Skavberg, Robin writes:
> ) I am using a direct connection between the two servers using a 10GB
> rated fiber patch, however I cannot achieve throughput speeds greater
> than ~2.3GB when using utils such as nuttcp. I don't want to enable
> jumbo frames and would be happy if I could just stream five consecutive
> 1Gbit threads, but I am not. Some details: Sol 10 6/06 w/latest
T2000 is quite CPU limited for a single threaded application.
I *think* nuttcp uses a single thread and opens multiple
connections in that thread. I'd try running a multithreaded
benchmark, such as iperf.
I'm working on this area of performance. If you aren't using jumbo
frames, you need a card that supports LSO. The only option at the
moment is "xge" (Neterion.)
For all other NICs, the per-packet-overheads associated with 1500 byte
frames are quite limiting at 10Gb. I'm spending a lot of time examining
ways to improve this for Solaris Nevada, some of these may be backported
to Solaris 10 in the future.
-- Garrett
Drew
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