Path: utzoo!attcan!uunet!mcvax!hp4nl!ruuinf!piet
From: piet@ruuinf (Piet van Oostrum)
Newsgroups: comp.sys.hp
Subject: speed of Pascal programs
Summary: how fast are they?
Keywords: Pascal HP9000/318
Message-ID: <921@ruuinf.UUCP>
Date: 16 Dec 88 16:15:40 GMT
Sender: piet@ruuinf.UUCP
Reply-To: piet@ruuinf (Piet van Oostrum)
Organization: Dept of Computer Science, University of Utrecht, Holland
Lines: 21

Today I tried to run a Pascal comparison Sun 3/60 vs HP9000/318. The
results are very surprising:

The Sun3/60 is a 20 MHz 68020, The HP9000/318 is a 16.7 MHz 68020. The
speed diffrence of compilation and C programs is 20-50% in favor of the
Sun. So far so good. But:

The speed of a translated Pascal program on the Sun is 6-7 times the
speed of the program on HP. (I used the TeX tangle program as an example).
Both are compiled without optimizations and with runtime checks (which
doesn't make much difference). I can't check the figures for HP, because I
don't have one at hand, so I must trust what I wrote down, but tangling
tangle.web tangle.ch took about 34 seconds on the HP and 5.2 seconds on Sun.

WHY IS THE HP PASCAL CODE SO SLOW????

Does anybody have experience with this?
-- 
Piet van Oostrum, Dept of Computer Science, University of Utrecht
Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands
Telephone: +31-30-531806        UUCP: ...!mcvax!hp4nl!ruuinf!piet