Is your driver on Linux 2.6 NAPI enabled ? And is CONFIG_PREEMPT=y?
[mailto:email@example.com] On Behalf Of firstname.lastname@example.org
Sent: Wednesday, July 13, 2005 9:30 PM
Subject: Au1550 ethernet throughput low
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I've got a au1550 board based largely on the pb1550. The ethernet
throughput is ~66Mbps using the 2.6 kernel. This also consumes a lot of
cpu cycles to send.
We have older designs using au1000 and mvista 2.4 kernel that achieve
full line rate throughput without using a lot of the cpu.
Can someone with a pb/db1550 and linux 2.6 do a quick test to verify
that is is not a 2.6 kernel problem, and is a problem with our HW/SW.
If anyone can do the same with a 2.4 kernel too that would be great.
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