Re: Why is my gigabit ethernet so slow?

[Martti Kuparinen <martti.kuparinen%iki.fi@localhost>]

Antti Kantee wrote:
> On Tue, Jan 26, 2010 at 01:53:13PM +0000, Matthias Scheler wrote:
> > On Tue, Jan 26, 2010 at 02:46:26PM +0200, Martti Kuparinen wrote:
> > > How can I get better speed (800+ Mbps) within NetBSD?
> > 2.) Please try to run "ttcp" with the option "-s 131072" to increase
> >     the socket buffer size.
>
> Wouldn't net.inet.tcp.recv/sendbuf_auto set to 1 solve that?  Is
> there any reason it isn't the default?

I ran

sysctl -w net.inet.tcp.recvbuf_auto=1
sysctl -w net.inet.tcp.sendbuf_auto=1

sysctl -w net.inet6.tcp6.recvbuf_auto=1
sysctl -w net.inet6.tcp6.sendbuf_auto=1

ifconfig wm0 ip4csum tcp4csum udp4csum tcp6csum udp6csum
ifconfig wm1 ip4csum tcp4csum udp4csum tcp6csum udp6csum

and now I get 545.01 Mbps.

Martti