[HECnet] Test ping

Dave McGuire mcguire at neurotica.com
Tue Nov 20 12:47:53 PST 2012


On 11/19/2012 09:18 PM, John Wilson wrote:
It's just such an amazingly bad match for that type of hardware
architecture.   *shudder*

Yeah we had it at RPI and it was insanely slow.   Sometimes it would drop
you during login because it couldn't process your username/password within
the 60-second timeout.   And the software BS didn't help.   The C compiler
was High-C and it had all kinds of bugs including choking on its own
#include files.

  Fear.

Another side of the same mainframe ran MTS (from UMich) and a lot of people
never got over the culture shock, but it sure ran like a bat outta hell!
So it wasn't a slow computer, unless they horribly misconfigured the VM
AIX/370 was in, I guess.

  VM tuning is a bit of a black art, even more involved than VMS tuning. (but VM doesn't have autogen ;))   Given the penchant for secrecy in the IBM world, at least compared to the DEC and UNIX worlds, I guess it's pretty conceivable that such things could happen.

P.S. I wrote the ROM half of PD.SYS for E11's new PDT-11/150 emulation and
now I'm working on the PDT-11/130 (TU58 with mutated DLV11) version for
good measure ... but slightly sidetracked attempting Terak stuff.   I guess
this release is going to be all about the weird LSI-11-based micros!

  That's gonna be just too much fun. :-)

                        -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA



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