Todd.Kueny@CMU-CS-G.ARPA (08/29/84)
> I would appreciate information about LISP interpreters for a VAX > 11/780 running VMS. Thanks in advance. We use something called PSL (Portable Standard Lisp) from Univ. of Utah. It has both a compiler and interpreter and *opinion* seems to be a heck of a lot faster and far more efficient than DEC COMMON LISP. We have a version we created from Utah's Vax UNIX version; I think Utah will have a VMS version of their own very soon. PSL has a COMMON LISP compatability package, an object oriented programming facility, and loads of other handy stuff. Unlike COMMON LISP PSL has a fixed sized heap with a two state garbage collector. A properly tuned PSL can be very fast (better than C in many cases) and five or six can be run at one time (while still doing other things). Three DEC COMMON LISPs can bog down a VMS 780 system. -Todd K. Unilogic
Parkinson@YALE.ARPA (09/22/84)
From: Gregory Parkinson <Parkinson@YALE.ARPA>
We run Yale's T on VMS and like it a lot. According to our benchmarks
it runs (on the average) a little faster than DEC's Common Lisp. The
T compiler gets rid of tail recursion which speeds things up a bit, and
is about 40 times faster when dealing with labels. Subjectively, working
with CL after working with T feels like driving a 76 Caddie Eldorado (power
windows, seats, brakes, steering, etc.) after getting used to a Honda CRX.
They both get you where you're going, but there's something about the
Honda that makes you feel like you're really driving......
Greg Parkinson
Cognitive Systems, inc.jbn@wdl1.UUCP (jbn ) (09/27/84)
And then, there is INTERLISP-VAX, the Bulgemobile of language systems.