Path: utzoo!attcan!uunet!husc6!think!ames!oliveb!amiga!boing!dale From: dale@boing.UUCP (Dale Luck) Newsgroups: comp.sys.amiga Subject: Re: Memory and the A2024 Hedley monitor. Message-ID: <347@boing.UUCP> Date: 16 Aug 88 16:40:09 GMT References: <8808060100.AA11069@jade.berkeley.edu> <3550@cadnetix.COM> <2746@amiga.UUCP> <11731@cisunx.UUCP> <3608@cadnetix.COM> Reply-To: dale@boing.UUCP (Dale Luck) Organization: Boing, Milpitas, Ca. Lines: 44 In article <3608@cadnetix.COM> childs@cadnetix.COM (David Childs) writes: > >He said because of the blitter, Amiga X would run faster than X on a Sun 3/50, >and because of the lack of UNIX overhead, Amiga X could run as much as 4 times >faster on a 68000 Amiga than a Sun 3/50. (User interface routines and screen >stuff, update window, etc.) Before I get bashed by you sun3 owners out there. (I have 3 at work). Let me clarify the above statements. Because of the blitter and exec not being unix, X would run on a plane 68k based amiga as fast if not faster than a sun3/50. The bits certainly are moved and painted quicker, however X is not just blits. Amiga exec is a very efficient low overhead multitasking system. I can't say the same for unix. Since every operation that X does when dealing with client<->server transactions requires task switching, it gets more effective cpu time with a system that has less overhead when switching tasks. Also before I get flamed for being antiunix, nothing is further from the truth. I've ported several early versions of unix to a 68k based machine in a previous life. It is also quite a bit of nonblitting code which is slower on a 7.2mhz 68000 than a 15mhz 68020. So some operations will be faster, some will be the same speed, and some will be slower. Depends on the resources needed. > >I really like UNIX, but I love the real-timelyness of AmigaDOS. > > David Childs Internet: childs@cadnetix.COM > Cadnetix Corp UUCP: cadnetix!childs > 5775 Flatiron Pkwy {uunet,boulder,nbires}!cadnetix!childs > Boulder, CO 80301 -- Dale Luck Boing, Inc. {cbmvax|oliveb|pyramid}|!amiga!boing!dale Although I do contract work for Amiga-LosGatos, my opinions probably don't represent those of Commodore or its management or its engineers, but I think the world would be a better place if they did.