Hi Andrew
I have a T2000 1Ghz 16 CPU's I'm running what came with the
system which is Generic_127111-09, which is not U4, not sure what
update that is. I did do a quick test before I upgrade those machines,
with the same parameters as before. What I have is Streams MDT,
and Streams LSO
MDT 1500 1.2G
LSO 1500 692Mb/s
MDT 9000 2.1G
LSO 689Mb/s
Given the numbers you have shown, you've now raised my
expectations of sparc, thanks. It's not clear why LSO is fixed
at ~690Mb/s but I'm going to upgrade the systems and get
onto Nevada see what I get after that.
thanks
Frank
Andrew Gallatin wrote:
> Francesco DiMambro wrote:
>
>> Would you be prepared to share the options you used to get the
>> result, and the version of netperf? It's good to know there's more
>
> Just the same as you. netperf -H ... -- -s 1M -S 1M
> to a linux receiver (dual dual core woodcrest, barely even
> noticed a 2.2Gb/s load), 1500B MTU.
>
> The linux host was running netperf 2.4.3 (kernel 2.6.22),
> and the sparc was running netperf 2.4.2 (solaris S10U4):
>
> % netperf242 -H10.0.130.183 -C -c -l60 -- -s1M -S1M
> TCP STREAM TEST from ::ffff:0.0.0.0 (0.0.0.0) port 0 AF_INET to
> ::ffff:10.0.130.183 (10.0.130.183) port 0 AF_INET
> Recv Send Send Utilization Service
> Demand
> Socket Socket Message Elapsed Send Recv Send
> Recv
> Size Size Size Time Throughput local remote local
> remote
> bytes bytes bytes secs. 10^6bits/s % M % S us/KB
> us/KB
>
> 2097152 1048576 1048576 60.00 2239.60 4.31 4.56
> 5.049 0.667
>
>
> Sendfile helps a little:
>
> % netperf242 -H10.0.130.183 -C -c -l60 -tTCP_SENDFILE -F /var/tmp/zot
> -P 0 -- -s1M -S1M
> 2097152 1048576 1048576 60.00 2705.02 6.45 6.03
> 6.252 0.730
>
>
> (it takes a few streams to get up to line rate on a cool threads
> machine :)
>
> Anyway, if you've got an LSO implementation, I'd really like to see
> LSO results compared to MDT results on the same hardware.
>
> Drew
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