🚀 go-pugleaf

Klaus Burkert (crest@arkon.dontpanic.sub.org) wrote:
: In article <4il54j$mue@vixen.cso.uiuc.edu> <claevius@firefly.prairienet.org> wrote:
: > Another related question:  Know of any Zorro-III ethernet cards?  If I
: 
: Not necessary.
: 
: > remember correctly, both the Adriane and Commodore's A2065 (I think that's
: > the model number of CBM's own ethernet card, anyway...<?>) are Zorro-II
: > 16-bit cards, which would give them a bus bandwidth of about two and a half
: > meg per second.  Typical ethernet connectivity will give you about nine or
: > ten meg per second, which is pretty close to what the bandwidth of the
: 
: 10 M_BIT_/s, that's slightly abov 1M_BYTE_/s which ZorroII can handle
: without any problems.
: What you're talking about is Fast-Ethernet which is not that widespread
: and the number of Amigas connected to such a net is that small, that you'd
: sell perhaps 50 boards/year which does not make up for manufacturing and
: developing at all. Another issue is, that a lot of performance get's lost
: during the networking-layers (virtual volume -> envoy -> sana.device -> HW).
: As an imgae: two stock A3000 connected via Ariadne and Envoy, DiskSpeed
: on the other A3000's RAMDISK gives about 300 - 350 KB/s. When you equip
: both machines with WarpEngine40/40s, this goes up to well above 600KB/s.
: Under NetBSD we had well above 700KB/s throughput with Ariadne...
: So what would be the point in having 100MBit/s networking on the hardware
: level when the software limits it to below 1 MB/s?
: 
: Ciao, Klaus.

-- 

Respectfully yours            /////R/ snapper@mgl.ca
Allan M. Purtle              ///P///  www.mgl.ca/~snapper
Canadian Prototype Replicas /C/////   +1-519-884-4412