PROBLEM: b44 network driver performance

From: Greg Mitchell
Date: Tue Nov 08 2005 - 08:22:08 EST


Summary: Poor performance of b44 driver

Description: I'm getting a transfer rate of 3 MB/s between two machines on the
same 100 Mbit lan. Using Broadcom's bcm4400 driver (which I believe is GPL),
I get 10 MB/s.

Kernel Version: 2.6.13 (vanilla) on a P4


I noticed when this problem was occurring, I frequently see the network
interface going down and then up again in the logs. Other than swapping out
the modules, I haven't done any other testing - so let me know if you need
anything else.


Greg Mitchell
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