Article View: comp.arch
Article #21573performance-sapping OSes (was: Re: 80486 vs. 68040 code size)
From: Snoopy
Date: Sun, 04 Jun 1989 23:41
Date: Sun, 04 Jun 1989 23:41
25 lines
1693 bytes
1693 bytes
In article <8081@killer.Dallas.TX.US> elg@killer.Dallas.TX.US (Eric Green) writes:
|> on the few 68030 machines around (Next, Macs, Suns), it seems that one
|> statement I have read (68030 == 68020+10/15%) is quite reasonable
|
|Figures I've seen indicate about a 20-30% improvement. Note that
|performance gains can be sapped by high-overhead operating systems
|(e.g. Mach on the NeXT) or by anemic memory systems (e.g. Mac IIx).
|You've benchmarked 68030-based Suns??? Considering that they only
|recently introduced them, you've been working fast! (the Sun's got
|about the same overhead as a NeXT anyhow, except it doesn't have the
|object-oriented layer to the user interface).
I'm curious as to why you say that Mach is "high overhead" when it
has better performance than 4.3 BSD. 15% faster compiling the kernel
on a VAX, according to the article in the August '86 _Unix_Review_.
Better/newer numbers welcome.
_____ .-----.
/_____\ Snoopy ./ RIP \.
/_______\ qiclab!sopwith!snoopy | |
|___| parsely!sopwith!snoopy | tekecs |
|___| sun!nosun!illian!sopwith!snoopy |_________|
"I *am* the next man!" -Indy
Technical Details
Message-ID:
<213@sopwith.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!zephyr!tektronix!psueea!parsely!sopwith!snoopyReferences:
<922@aber-cs.UUCP> <8081@killer.Dallas.TX.US>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!zephyr!tektronix!psueea!parsely!sopwith!snoopy From: snoopy@sopwith.UUCP (Snoopy) Newsgroups: comp.arch Subject: performance-sapping OSes (was: Re: 80486 vs. 68040 code size) Message-ID: <213@sopwith.UUCP> Date: 4 Jun 89 23:41:02 GMT References: <922@aber-cs.UUCP> <8081@killer.Dallas.TX.US> Reply-To: snoopy@sopwith.UUCP (Snoopy) Distribution: eunet,world Organization: The Daisy Hill Puppy Farm Lines: 25