Gigabit network slow samba, ftp, iperf?
I'm having many little problems with my gigabit network.
My hard drive reads at 85 MB/s, so why am I downloading from the ftp server at 68 MB/s? How could I diagnose what is eating those 17 MB/s?
Why does my windows machine have a slow 326 Mbit/s transmit speed compared with ubuntu's transmit speed of 763 Mbit/s when testing with iperf?
Why do I get slow samba speeds?
Windows is connected to Ubuntu with a 6 foot crossover cable. Both machines are fully updated.
motherboard: gigabit ga-965p-ds3
cpu: C2D E4400
hard drives: 250gb seagate, read = 85 MB/s
lan: marvel 8053 Gigabit LAN (onboard, PCI-E)
ubuntu 8.04 gateway
motherboard: Asus P5B-MX
cpu: C2D E2160
hard drive: 250gb seagate, read = 85 MB/s
lan: attansic® L1 PCI-E Gigabit LAN controller (onboard, PCI-E)
- windows pc downloading from gateway: 763 Mbit/s = 95 MB/s
- gateway downloading from windows pc: 326 Mbit/s = 41 MB/s
- windows pc downloading from gateway: 544 Mbit/s = 68 MB/s
- windows pc downloading from gateway: 194 MBit/s = 24 MB/s
- gateway downloading from windows pc: 160 MBit/s = 20 MB/s
netbios name = SHWICK_GATEWAY
server string = SHWICK_GATEWAY
interfaces = lo, eth1
bind interfaces only = Yes
map to guest = Bad User
passdb backend = tdbsam
syslog only = Yes
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
os level = 65
preferred master = Yes
domain master = Yes
dns proxy = No
wins support = Yes
invalid users = root
path = /home/ftp/
create mask = 0640
directory mask = 0750
guest only = Yes
guest ok = Yes