sbaker3
October 3rd, 2007, 06:33 PM
This post could be related to an Ubuntu bug filed at: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/148738 . ---------------------------- . .
Network download is very slow for me on my machine running generic gutsy on AMD Athlon(tm) 64 X2 Dual Core with forcedeth network driver.
Here is a typical iperf run:
$ iperf -c 192.168.1.50 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.50, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.101 port 37835 connected with 192.168.1.50 port 5001
[ 4] local 192.168.1.101 port 5001 connected with 192.168.1.50 port 56946
[ 5] 0.0-10.0 sec 48.4 MBytes 40.6 Mbits/sec
[ 4] 0.0-10.2 sec 1.57 MBytes 1.29 Mbits/sec
Ifconfig shows RX packet errors:
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1A:A0:53:4D:FB
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:73886 errors:3443 dropped:0 overruns:0 frame:3391
TX packets:108585 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:27746730 (26.4 MB) TX bytes:140126662 (133.6 MB)
Interrupt:16 Base address:0x4000
Pertinent excerpts from lshw:
*-cpu
description: CPU
product: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
*-bridge
description: Ethernet interface
product: MCP61 Ethernet
vendor: nVidia Corporation
physical id: 7
bus info: pci@0000:00:07.0
logical name: eth0
version: a2
serial: 00:1a:a0:53:4d:fb
size: 100000000
capacity: 100000000
width: 32 bits
clock: 66MHz
capabilities: bridge pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.60 duplex=full ip=192.168.1.101 latency=0 link=yes maxlatency=20 mingnt=1 module=forcedeth multicast=yes port=MII speed=100MB/s
$ uname -a
Linux steveb-desktop 2.6.22-12-generic #1 SMP Sun Sep 23 18:11:30 GMT 2007 i686 GNU/Linux
In addition to the default boot options following boot options were tried which had no effect on iperf stats speed:
noapictimer irqpoll
noapic nolapic
noapic acpi=noirq
noapic acpi=off
noapictimer
noapic acpi=noirq nolapic
The following boot options segfaulted on boot:
clock=pmtmr notsc
notsc
Disabling fglrx had no effect on iperf stats.
The slow download has occured attached to 2 different routers and different cables.
See the attached launchpad bug for log file attachments
cheers
Network download is very slow for me on my machine running generic gutsy on AMD Athlon(tm) 64 X2 Dual Core with forcedeth network driver.
Here is a typical iperf run:
$ iperf -c 192.168.1.50 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.50, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.101 port 37835 connected with 192.168.1.50 port 5001
[ 4] local 192.168.1.101 port 5001 connected with 192.168.1.50 port 56946
[ 5] 0.0-10.0 sec 48.4 MBytes 40.6 Mbits/sec
[ 4] 0.0-10.2 sec 1.57 MBytes 1.29 Mbits/sec
Ifconfig shows RX packet errors:
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1A:A0:53:4D:FB
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:73886 errors:3443 dropped:0 overruns:0 frame:3391
TX packets:108585 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:27746730 (26.4 MB) TX bytes:140126662 (133.6 MB)
Interrupt:16 Base address:0x4000
Pertinent excerpts from lshw:
*-cpu
description: CPU
product: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
*-bridge
description: Ethernet interface
product: MCP61 Ethernet
vendor: nVidia Corporation
physical id: 7
bus info: pci@0000:00:07.0
logical name: eth0
version: a2
serial: 00:1a:a0:53:4d:fb
size: 100000000
capacity: 100000000
width: 32 bits
clock: 66MHz
capabilities: bridge pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.60 duplex=full ip=192.168.1.101 latency=0 link=yes maxlatency=20 mingnt=1 module=forcedeth multicast=yes port=MII speed=100MB/s
$ uname -a
Linux steveb-desktop 2.6.22-12-generic #1 SMP Sun Sep 23 18:11:30 GMT 2007 i686 GNU/Linux
In addition to the default boot options following boot options were tried which had no effect on iperf stats speed:
noapictimer irqpoll
noapic nolapic
noapic acpi=noirq
noapic acpi=off
noapictimer
noapic acpi=noirq nolapic
The following boot options segfaulted on boot:
clock=pmtmr notsc
notsc
Disabling fglrx had no effect on iperf stats.
The slow download has occured attached to 2 different routers and different cables.
See the attached launchpad bug for log file attachments
cheers