Subject: Re: rtk0: transmit underrun
To: None <>
From: David Young <>
List: current-users
Date: 03/03/2003 11:27:55
On Mon, Mar 03, 2003 at 05:11:29PM +0000, David Laight wrote:
> IMHO the 'early TX start' and 'early RX interrupt' are not 'useful
> ethernet chipset features'.  They are designed soley to improve
> latency at a cost of cpu cycles, this may be appropriate to the
> desktop, but are not relevant to servers.

  Please explain why early Tx start costs CPU cycles on a bus-mastering
  NIC. I just do not see it.

  I do not think any NetBSD ethernet driver uses early Rx interrupts.


David Young             OJC Technologies      Engineering from the Right Brain
                        Urbana, IL * (217) 278-3933