3c59x very slow with 2.6.X
Hello,
somehow the network speed is reduced to 14MBit with 2.6.X on my system, with 2.4.X it has full 100MBit.
As all our systems boot diskless this is really annoying and I will reboot 2.4.27 soon.
euklid:~# nttcp -T hamilton2
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
l 8388608 4.73 4.60 14.2004 14.5911 2048 433.36 445.3
1 8388608 4.73 0.03 14.1984 2236.9621 6145 1300.12 204833.3from dmesg:
3c59x: Donald Becker and others. www.scyld.com/network/vortex.html 0000:00:0a.0: 3Com PCI 3c905B Cyclone 100baseTx at 0xb800. Vers LK1.1.19
euklid:~# mii-tool eth0: 100 Mbit, full duplex, link ok
Any ideas whats going on?
Please tell me if you need further information.
Cheers,
Bernd
PS: Happens with 2.6.7 and 2.6.8-rc2-mm2
Signature · 6 lines
Bernd Schubert Physikalisch Chemisches Institut / Theoretische Chemie Universität Heidelberg INF 229 69120 Heidelberg e-mail: [email protected]
Quoted 9 lines · Bernd Schubert
Hello,
somehow the network speed is reduced to 14MBit with 2.6.X on my system, with 2.4.X it has full 100MBit. As all our systems boot diskless this is really annoying and I will reboot 2.4.27 soon.
euklid:~# nttcp -T hamilton2 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s l 8388608 4.73 4.60 14.2004 14.5911 2048 433.36 445.3 1 8388608 4.73 0.03 14.1984 2236.9621 6145 1300.12 204833.3
No problem here: both machines have a 3com 3c905CX-TX and run kernel 2.6.7.
zassenhaus /root# nttcp -T riemann
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
l 8388608 0.71 0.01 94.9903 7457.3690 2048 2898.87 227580.8 1 8388608 0.71 0.04 93.9984 1598.0964 5794 8115.57 137975.4
The driver is compiled into the kernel, not as module. Could that make a difference for you?
cu,
Frank
Signature · 5 lines
Dipl.-Inform. Frank Steiner Web: http://www.bio.ifi.lmu.de/~steiner/ Lehrstuhl f. Bioinformatik Mail: http://www.bio.ifi.lmu.de/~steiner/m/ LMU, Amalienstr. 17 Phone: +49 89 2180-4049 80333 Muenchen, Germany Fax: +49 89 2180-99-4049 * Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *
Quoted 13 lines · Frank Steiner
Quoted 9 lines · Bernd Schubert
Hello,
somehow the network speed is reduced to 14MBit with 2.6.X on my system, with 2.4.X it has full 100MBit.
As all our systems boot diskless this is really annoying and I will reboot 2.4.27 soon.euklid:~# nttcp -T hamilton2 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s l 8388608 4.73 4.60 14.2004 14.5911 2048 433.36 445.3 1 8388608 4.73 0.03 14.1984 2236.9621 6145 1300.12 204833.3No problem here: both machines have a 3com 3c905CX-TX and run kernel 2.6.7.
Quoted 7 lines
zassenhaus /root# nttcp -T riemann
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s l 8388608 0.71 0.01 94.9903 7457.3690 2048 2898.87 227580.8 1 8388608 0.71 0.04 93.9984 1598.0964 5794 8115.57 137975.4The driver is compiled into the kernel, not as module. Could that make a difference for you?
FWIW, I'm using a 3c905C-TX with kernel 2.6.6 and 3c59x as a module, without any problems at all.
Signature · 2 lines
Måns Rullgård [email protected]
Quoted 16 lines · you
Quoted 7 lines · Bernd Schubert
Hello,
somehow the network speed is reduced to 14MBit with 2.6.X on my system, with 2.4.X it has full 100MBit.
As all our systems boot diskless this is really annoying and I will reboot 2.4.27 soon.Quoted 5 lines
euklid:~# nttcp -T hamilton2 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s l 8388608 4.73 4.60 14.2004 14.5911 2048 433.36 445.3 1 8388608 4.73 0.03 14.1984 2236.9621 6145 1300.12 204833.3No problem here: both machines have a 3com 3c905CX-TX and run kernel 2.6.7.
Quoted 8 lines
zassenhaus /root# nttcp -T riemann
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s
CPU-C/s l 8388608 0.71 0.01 94.9903 7457.3690 2048
2898.87 227580.8 1 8388608 0.71 0.04 93.9984 1598.0964
5794 8115.57 137975.4The driver is compiled into the kernel, not as module. Could that make a difference for you?
Its also compiled into the kernel on our systems. Here are the numbers with 2.4.27-rc5:
euklid:~# nttcp -T hamilton2
Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
l 8388608 0.71 0.04 94.9401 1677.7216 2048 2897.34 51200.0 1 8388608 0.71 0.03 94.1146 2236.9621 5797 8129.81 193233.3
Cheers,
Bernd