Subject: Re: 1.5_Beta on 3100/M76 and MVII (hare and tortoise syndrome)
To: Anders Magnusson <>
From: David Brownlee <>
List: port-vax
Date: 10/26/2000 21:00:11
	Is there any difference between tcp and udp?
	Maybe udp with 'sysctl -w net.inet.udp.checksum=0'?
	(ttcp can benchmark tcp and udp)

	Getting more elaborate: (trying different code paths), how about
	comparing 'ping -f' with various options, or (limiting case),
	if you have a mac anywhere nearby, try installing netatalk or
	netatalk-asun, and test the appletalk transfer speeds.

			       -- A pmap for every occasion --

On Thu, 26 Oct 2000, Anders Magnusson wrote:

> >
> > on the MVII, even with a stripped to the bare bones 1.5 kernel.  Ethernet
> > speeds, for example were 33% faster on the 1.3.2 with generic kernel,
> >
> This is true. It's even faster than that. Something has happened in the
> IP stack that makes it much slower on slow machines between 1.3 and 1.5;
> I posted about this on tech-kern a couple of months ago. I have checked
> all obvious details like device drivers and at last it was only the IP
> stack left.
> -- Ragge