[HECnet] Emulated XQ polling timer setting and data overrun

[Hans Vlems]

Mark, a deuna couldn't even keep up with thick wire ethernet speed. Iirc it could read up to 3 Mb/s average over a period of time, with full sized frames. Probably the same for the deqna.

Verzonden vanaf mijn BlackBerry 10-smartphone.
   Origineel bericht   
Van: Mark Pizzolato - Info Comm
Verzonden: donderdag 5 juni 2014 13:58
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: RE: [HECnet] Emulated XQ polling timer setting and data overrun

On Thursday, June 05, 2014 at 1:27 AM, Johnny Billquist wrote:
On 2014-06-05 02:38, Jean-Yves Bernier wrote:
[...]
I have tested commit 753e4dc9 on Mac OS 10.6, no virtualization. Both
simh instances run on the same hardware. XQ set to different MAC
addresses, since this is now enforced.

Asynchronous network/disk IO may explain the uncommon transfer speed
(I
have filled a RM03 in seconds).

Interesting. I still have real network issues with the latest simh
talking to a real PDP-11 sitting on the same physical network. So you
seem to have hit sime other kind of limitation or something...

Can you elaborate on these 'real network issues'?

This is the first I've heard of anything like this.

I have not had any experience with a real PDP11 talking to a simh PDP or VAX, but in the past there were no issues with multiple simh VAX simulators talking to real VAX systems on the same LAN.

Let me know.

Thanks.

- Mark