Subject: Re: very slow TCP connection on localhost
To: Kevin Lahey <>
From: Manuel Bouyer <>
List: tech-net
Date: 09/06/2006 11:49:38
On Wed, Sep 06, 2006 at 07:38:39PM +1000, Daniel Carosone wrote:
> On Tue, Sep 05, 2006 at 09:09:40PM -0700, Kevin Lahey wrote:
> > Yow, that's a weird trace.  I was just going to suggest that you
> > increase the socket buffer size, but that was before I saw the
> > retransmissions and other stuff in the trace.
> Does toggling net.inet.ip.do_loopback_cksum make any difference?  

No, I tried that. I changed it and killed the currently running dump;
the next dump in the list was as slow.

Manuel Bouyer, LIP6, Universite Paris VI. 
     NetBSD: 26 ans d'experience feront toujours la difference