On Thu, 23 Sep 2004, Esben Nielsen wrote:
ArcNet can't compete with ethernet as LAN: It can only run 10 Mbit whereas 100 Mbit ethernet can run roughly 50 Mbit in practice.
most 100Mb/s ethernet card/switch combo's will happily push 90+ Mb/s bi-directionally between two hosts.
But ArcNet doesn't degrade in performance when you try to fill it up as ethernet does. Thus ArcNet is very good for real-time applications - and is used for such in the industry. But that is not an area where people usually use Linux.
well maybe your "realtime" application doesn't run on linux.
if you want non-degrading ethernet performance buy a switch, if you want bandwidth reservation, buy an l3 switch.
There just isn't anyone using arcnet or arcnet+ anymore, the writing was on the wall for thomas conrad more than a decade ago, and my datapoint mainframe days are far behind me, and I don't miss them.
But don't worry, the windoze drivers aren't good either. The official driver for the PCMCIA card crashed Windows XP - with no chance of fixing them as I have with the Linux one :-)
Esben
On Thu, 23 Sep 2004, David S. Miller wrote:
On Thu, 23 Sep 2004 22:59:58 +0200 (METDST) Esben Nielsen <simlo@phys.au.dk> wrote:
After I got the arcnet device running labtop computer froze up. I have turned off preemtion and SMP. It seems to make it more stable but I can't be conclusive.
Based upon the fact that most Arcnet drivers set hw.open() to NULL, and you're the first person to report this, I doubt arcnet is getting any serious use or testing at all these days. Sorry :-/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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