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Article View: comp.sys.powerpc
Article #3450

Re: Debate: PowerMac "trounces" Pentium....???

#3450
From: Paul Christenson
Date: Tue, 26 Mar 1996 01:34
43 lines
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: > : On the flip side, Unix users have to set process limits so that things
: > : like Netscape don't bring the whole machine to a snail's pace.

: > I have *NEVER* had to set a "process limit" on ANY *nix system that I've
: > used, from my (primarily) CLI Linux system here at home, to the SGIs at
: > school.  I've run Netscape concurrently with several shells and programs
: > such as Matlab.

: What version of Netscape?  Go to a JavaScript page and let it sit there
: for a while.  People have reported not only noticeable slowdowns of their
: machines, but even crashes of the supposedly uncrashable Unix (it has
: memory protection; how could an app possibly crash it?  How could the
: Titanic sink?).

Netscape 2.0.  The closest I have ever had to a "crash" was a core dump; it
simply shut down the task and went on its merry way.

The only time that happened with Netscape 2 is when I didn't install it
correctly.  Netscape, being a precompiled app, requires certain files to
be in certain locations.

: > The only time I would need to set priorities is when I'm
: > running a timing-sensitive process such as RealAudio.

: The claim was these types of problems went away with PMT.  Guess not.

I said "would need to", not "had to".  Big difference.  RealAudio takes 
about 50% of processor power.  If I valued a steady audio stream above 
everything else I'm doing, then I change the process priority.  Otherwise,
I let the OS do its job.

: > Many of the MEs at school regularly run Netscape while waiting for a long
: > ANSYS job to run.  Most programs (like Netscape) spend most of their time 
: > waiting for input, be it user input or data from the net.

: Are you absolutely sure that someone hasn't imposed a per-process limit on
: the amount of VM a process is allowed to allocate?  There is no difference
: between an admin setting it and you setting it, in my eyes.  A limit is a
: limit.

No limits that I can detect.  I can drive the machine into swap with one 
process if I care to.  I can also have 100% processor utilization with
one process.  The allocations are dynamic.
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Path: arc1-ca.pugleaf.net!moose.erie.net!pce
From: pce@moose.erie.net (Paul Christenson)
Newsgroups: comp.sys.powerpc,comp.os.linux.advocacy,comp.sys.mac.advocacy,comp.os.os2.advocacy,comp.sys.amiga.advocacy,comp.sys.intel
Subject: Re: Debate: PowerMac "trounces" Pentium....???
Followup-To: comp.sys.powerpc,comp.os.linux.advocacy,comp.sys.mac.advocacy,comp.os.os2.advocacy,comp.sys.amiga.advocacy,comp.sys.intel
Date: 26 Mar 1996 01:34:14 GMT
Organization: ErieNet
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