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

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

On Thu, Oct 27, 2011 at 07:51:43PM +0200, Manuel Bouyer wrote:
> > 
> > If this hasn't been adjusted to match the Linux driver, you might
> > want to take a quick look at the values it uses and see whether
> > they yield better small-buffer performance in your case.
> 
> I looked quickly at this and came up with the attached patch.

I think what Simon tested was the change to the moderation timers
and thresholds only -- not to the total number of descriptors in
use.  Might be worth checking to see whether that is what's causing
the input errors you're seeing.

Thor