[net-perf] Performance test results

[Mark Boolootian]

> Matt was able to install our key into the nms1-losa box as well.  Here
> are our results:
> 
> UCB -> Abilene LAX 	971 mb/s
> Abilene LAX -> UCB	956 mb/s

We're seeing good performance to this system as well:

 UCSC -> Abilene LAX    964 mbit/sec
 Abilene LAX -> UCSC    839 mbit/sec

Thanks very much for running against the NDT server.  That's the first
time anyone has reported rates from an off-campus, gigE-connected client.

> UCB -> nitro.ucsc.edu (NDT)	876 mb/s
> nitro.ucsc.edu (NDT) -> UCB	882 mb/s

A bwctl run from nitro to the Berkeley system yielded some interesting
results:

  UCSC -> bwctl-001   479 mbit/sec
  bwctl-001 -> UCSC   945 mbit/sec

I'd sure like to see roughly the same rates for iperf and the NDT server,
and that's probably worth looking at a bit more closely.  It looks like
the MTU on the Berkeley machine isn't set for jumbo frames - though I'm
puzzled by the reports of different MSS in the below output from iperf.
The MSS for the Abilene transfer was reported 8140 by both sides.  I'm 
seeing the differing MSS values to Berkeley whether I'm sending or
receiving.  I'm also puzzled as to why it reports the MTU on my side as
6184, since the interface is set to 8192.

---

RECEIVER START
3327932335.306196: iperf -B 192.101.42.22 -P 1 -s -f b -m -p 5001 -w 2097152 -t 
10 -i 2
------------------------------------------------------------
Server listening on TCP port 5001
Binding to local address 192.101.42.22
TCP window size: 2097152 Byte
------------------------------------------------------------
[ 16] local 192.101.42.22 port 5001 connected with 128.114.1.5 port 32830
[ 16]  0.0- 2.0 sec  87158016 Bytes  348632064 bits/sec
[ 16]  2.0- 4.0 sec  149849176 Bytes  599396704 bits/sec
[ 16]  4.0- 6.0 sec  114350008 Bytes  457400032 bits/sec
[ 16]  6.0- 8.0 sec  144752216 Bytes  579008864 bits/sec
[ 16]  8.0-10.0 sec  103329280 Bytes  413317120 bits/sec
[ 16]  0.0-10.0 sec  602177536 Bytes  479749772 bits/sec
[ 16] MSS size 6144 bytes (MTU 6184 bytes, unknown interface)
RECEIVER END
SENDER START
3327932337.308955: iperf -c 192.101.42.22 -B 128.114.1.5 -f b -m -p 5001 -w 2097
152 -t 10 -i 2
------------------------------------------------------------
Client connecting to 192.101.42.22, TCP port 5001
Binding to local address 128.114.1.5
TCP window size: 4194304 Byte (WARNING: requested 2097152 Byte)
------------------------------------------------------------
[ 13] local 128.114.1.5 port 32830 connected with 192.101.42.22 port 5001
[ ID] Interval       Transfer     Bandwidth
[ 13]  0.0- 2.0 sec  89710592 Bytes  358842368 bits/sec
[ 13]  2.0- 4.0 sec  150249472 Bytes  600997888 bits/sec
[ 13]  4.0- 6.0 sec  114483200 Bytes  457932800 bits/sec
[ 13]  6.0- 8.0 sec  144637952 Bytes  578551808 bits/sec
[ 13]  8.0-10.0 sec  103088128 Bytes  412352512 bits/sec
[ 13]  0.0-10.0 sec  602177536 Bytes  479574591 bits/sec
[ 13] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
SENDER END