RE: 8260 Network Performance update
From: Allen Curtis <hidden>
Date: 2002-06-06 12:41:39
link parameters. You could try increasing the number of receive buffers in the Ethernet driver, and I guess we should modify the driver to DMA directly into skbufs. I would be surprised if either of these last two would increase the performance, but I've been surprised by a few things lately :-).
The table below is performance vs. number of driver buffers. (16 - 64) 10T Hub | 100BT switch -------------------------------------| 16 RTB | 440KBps | 190KBps | -------------------------------------- 32 RTB | 450KBps | 230KBps | -------------------------------------- 64 RTB | 450KBps | 240KBps | -------------------------------------- There is a slight improvement when you increase the number of buffers from 16 (default) to 32. There does not appear to be any benefit beyond that. I am guessing that the problem is not in the driver unless the driver is suppose to enforce some soft of fair usage algorithm. Is there a network usage scheduler of some kind? I do not have this problem on a x86 RedHat system... ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/