FreeBSD 7.0-RELEASE getting terrible throughput using sk0 adapter

David Polak me at
Sun Aug 31 17:34:30 UTC 2008

> -----Original Message-----
> From: owner-freebsd-questions at [mailto:owner-freebsd-
> questions at] On Behalf Of Wojciech Puchar
> Sent: Sunday, August 31, 2008 11:21 AM
> To: David Polak
> Cc: freebsd-questions at
> Subject: Re: FreeBSD 7.0-RELEASE getting terrible throughput using sk0
> adapter
> > still seeing really slow download speeds. I then decided to see if
> something
> > was wrong with the system by downloading the same image from the same
> source
> > that I downloaded on linux in order to bootstrap freebsd and the
> speed
> > difference was appaling. It had downloaded at 10.29 MB/s. Once
> freebsd was
> > installed, It will only go at 60KB/s..
> >
> >
> looks like problems with speed/duplex autoconfiguration with the
> switch,
> or bad support for PHY in FreeBSD.
> what you describe is quite common case when one side gets configured
> for
> full duplex, other for half duplex.
> as it works for linux, maybe PHY support in FreeBSD is buggy.
> try setting up speed and duplex options manually

I have set the duplex to full-duplex and it has increased the speed to about
200kb/s on the same file.

As far as phy support, I guess I really don't know, but the drivers for the
chipset have been around for a while. 

More information about the freebsd-questions mailing list