LX3 - Network transfer speed issue

[rassi]

I do seem to have network transfer speed issue with LX3. What kind of speeds others are getting with it?
LX3 over gbit network with NFS:


Results for write throughput:
97.612 Mbit/s with udp,async,wsize=8192
97.612 Mbit/s with tcp,async,wsize=8192
97.612 Mbit/s with tcp,async,wsize=32768
97.612 Mbit/s with tcp,async,wsize=16384
89.478 Mbit/s with udp,async,wsize=4096
89.478 Mbit/s with udp,async,wsize=16384
89.478 Mbit/s with tcp,async,wsize=4096
42.949 Mbit/s with udp,async,wsize=32768

Results for read throughput:
1073.741 Mbit/s with udp,async,rsize=8192
1073.741 Mbit/s with udp,async,rsize=32768
1073.741 Mbit/s with udp,async,rsize=16384
1073.741 Mbit/s with tcp,async,rsize=8192
1073.741 Mbit/s with tcp,async,rsize=4096
1073.741 Mbit/s with tcp,async,rsize=32768
1073.741 Mbit/s with tcp,async,rsize=16384

To the same server but with other machine, so server not limiting write throughput


Results for write throughput:
1073.741 Mbit/s with udp,async,wsize=32768
536.870 Mbit/s with udp,async,wsize=8192
357.913 Mbit/s with tcp,async,wsize=4096

Results for read throughput:
1073.741 Mbit/s with udp,async,rsize=32768


root@xpeedlx3:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Link partner advertised pause frame use: Symmetric Receive-only
Link partner advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 4
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: ags
Wake-on: d
SecureOn password: 00:00:00:00:00:00
Link detected: yes

[rassi]

Tested now with several different images from different ages and this is the best result


root@xpeedlx3:~# dd if=/dev/zero of=/home/root/temp/testfile bs=512k count=1000

1000+0 records in
1000+0 records out
524288000 bytes (500.0MB) copied, 45.118345 seconds, 11.1MB/s

[rassi]

Back on track. Bad connector on network.


root@xpeedlx3:~# dd if=/dev/zero of=/media/hdd/testfile2231 bs=512k count=1000
1000+0 records in
1000+0 records out
524288000 bytes (500.0MB) copied, 10.616792 seconds, 47.1MB/s