major bge(4) performance problem

Laurent Frigault lolo at
Sat Dec 15 09:42:22 PST 2007

On Fri, Dec 14, 2007 at 12:20:22PM +0300, Lenar Tukhvatullin wrote:

> > We are experiencing a problem with BCM5721 bge interfaces, which seems to
> > be able to receive at almost 1Gbps but can only transmit at < 540Mbps.

> Hello, can you test patch from Igor Sysoev with recommended tunables?
> Also comments from Bruce Evans:
> I have same problem with bge, but currently can't
> test this patch on production system.

I apply those patches (edited version) on our test server (7.0BETA4).
Unfortunately, it does not seems to change anything about our transmit
performance problem. I tried to play with the new sysctls, but without
any knowlegde on the driver internal, I did not see any noticeable
improvement and our FreeBSD mirror project remains stalled.

Laurent Frigault |
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