Re: NetBSD 5.1 TCP performance issue (lots of ACK)

[Thor Lancelot Simon <tls%panix.com@localhost>]

On Thu, Oct 27, 2011 at 04:02:12PM +0200, Manuel Bouyer wrote:
> 
> ttcp is at 108KB/s (so it's also faster without tso4). Looks like there's
> definitively a problem with TSO on our side.

The sending network adapter is a 'wm'?  There are a few models of wm
with broken TSO support, but as far as I know most work fine.  In
particular, most 82573 variants you'll actually encounter in the field
are bad.

Thor