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From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: comp.os.vms,comp.lang.c
Subject: Re: VAX C compilation speeds on 750
Message-ID: <8790@utzoo.UUCP>
Date: Mon, 19-Oct-87 16:01:19 EDT
Article-I.D.: utzoo.8790
Posted: Mon Oct 19 16:01:19 1987
Date-Received: Mon, 19-Oct-87 16:01:19 EDT
References: <1021@oakhill.UUCP>
Organization: U of Toronto Zoology
Lines: 15

> Now I realize this is comparing apples and oranges, but I never thought
> a PC would beat a VAX, even a 750, particularly since a Sun 3/50 blows
> both of these away (compilation in less than a minute)...

The 750 is a much-overrated processor.  It is in fact a little slower than
a pdp11/44, and I think a well-configured AT is a bit faster than a 44.
It is no surprise that a 3/50 does much better than either -- its cpu is
3-4 times as fast.  I/o configuration does also enter the picture, of
course.  As does compiler technology:  the PC compilers quite possibly put
more emphasis on fast compilation (since the PC is useless for anything
else while the compiler is running) while minicomputer compilers generally
work harder on code quality.
-- 
"Mir" means "peace", as in           |  Henry Spencer @ U of Toronto Zoology
"the war is over; we've won".        | {allegra,ihnp4,decvax,utai}!utzoo!henry