to slow network HP COMPAQ DC7700S

makkintosh · 11-16-2007, 05:56 AM

yesterday i received HP COMPAQ DC7700S.
It had Vista with it. Of course i got rid of it and installed Debian Etch.(netinstall)
When i was getting packages from internet i noticed that trasfer speed is very slow
20kbytes/s max!
i tried to tune MTU but it became worse and i set it to 1500 as it was.
freebsd machine with same wire is doing 2.5 mbites/s! when i plug same ethernet cable to this debian box it becomes 20kb.

Code:

k@makkintosh:~$ lspci
00:00.0 Host bridge: Intel Corporation Q963/Q965 Memory Controller Hub (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Q963/Q965 Integrated Graphics Controller (rev 02)
00:03.0 Communication controller: Intel Corporation Q963/Q965 HECI Controller (rev 02)
00:19.0 Ethernet controller: Intel Corporation 82566DM Gigabit Network Connection (rev 02)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI #2 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HO (ICH8DO) LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA IDE Controller (rev 02)
k@makkintosh:~$ lspci | grep Ethernet
00:19.0 Ethernet controller: Intel Corporation 82566DM Gigabit Network Connection (rev 02)

Code:

k@makkintosh:~$ dmesg | grep eth
HP Compaq Laptop series board detected. Selecting BIOS-method for reboots.
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
e1000: eth0: e1000_watchdog: 10/100 speed: disabling TSO
eth0: no IPv6 routers present

tell me if u need more info .thanx
i really need help with this.

Thanx in advance

wbr
Konstantin Pavlovsky

makkintosh · 11-19-2007, 05:55 AM

Problem was solved by adding the following lines:

Code:

 /etc/sysctl.conf
net.core.rmem_max = 52428
net.core.wmem_max = 52428
net.ipv4.tcp_rmem = 4096 8738 52428
net.ipv4.tcp_wmem = 4096 6553 52428