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"Optimizing System Performance"
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Forum Regular
Join Date: Jan 2006
Location: Frogstar World B
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I apologize if this has already been posted - I couldn't get the search feature to work.
I'm just curious, what are our macs doing while "optimizing system performance" in every system installer?
This used to take my iMac DV like 5 minutes or more in 10.3 (My new MacBook Pro does it in less than 30 seconds, but hey).
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Posting Junkie
Join Date: Jan 2006
Location: Colorado
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It is verifying andrepairing disk permissions.
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Professional Poster
Join Date: Jan 2003
Location: Teaneck, NJ
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I think I read around here once that it is defragging some files as well. You know the smaller than 20mb ones that it defrags automatically.
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AT&T iPhone 5S and 6; 13" MBP; MDD G4.
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Addicted to MacNN
Join Date: Oct 2001
Location: Yokohama, Japan
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I don't think it's any of those things. It's updating the prebinding.
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Professional Poster
Join Date: Nov 2000
Location: Tasmania, Australia
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It's updating prebinding. You can do this anytime you like using the command line.
Apple says that this is no longer necessary in Tiger, so I have to wonder why they still do it.
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Mac Elite
Join Date: Dec 2000
Location: Northern California
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Originally Posted by Brass
Apple says that this is no longer necessary in Tiger, so I have to wonder why they still do it.
Maybe that's not what it's doing anymore, then? *shrugs*
BTW, what was changed in Tiger that negated the need for prebinding?
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Mac OS X 10.5.0, Mac Pro 2.66GHz/2 GB RAM/X1900 XT, 23" ACD
esdesign
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Posting Junkie
Join Date: Dec 2000
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Prebinding was a retarded waste of time. It was ridiculous that OS X ever needed it in the first place. Fortunately, they fixed this situation with Tiger, so that the only things that are prebound are a few system libraries and frameworks. Incidentally, this is why the prebinding step always goes so much faster in Tiger than it did in Panther.
Oh and yeah, it's not doing any defragging or repairing permissions.
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Dedicated MacNNer
Join Date: May 2004
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Originally Posted by CharlesS
Prebinding was a retarded waste of time. It was ridiculous that OS X ever needed it in the first place.
While I agree with your sentiments, I don't think it was ever needed as such.
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╭1.5GHz G4 15" PB, 2.0GB RAM, 128MB VRAM, 100GB 7200rpm HD, AEBS, BT kbd
╰2.0GHz T2500 20" iMac, 1.5GB RAM, 128MB VRAM, 250GB 7200rpm HD
http://www.DogLikeNature.com/
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Posting Junkie
Join Date: Dec 2000
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Originally Posted by Dog Like Nature
While I agree with your sentiments, I don't think it was ever needed as such.
True - the system would work without it - applications would just launch more slowly. However, the fact that applications launched slowly in the initial releases of OS X was a problem - prebinding was needed to make it more tolerable. A far better solution would be to speed up the binding system in the first place, which seems to be what has been done in Tiger.
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Fresh-Faced Recruit
Join Date: Apr 2003
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Originally Posted by imitchellg5
It is verifying andrepairing disk permissions.
Wrong.
It is updating the pre-binding.
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Forum Regular
Join Date: Aug 2002
Location: Southern Ca.
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So how does one manually "optimize system performance" on their computer?
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Professional Poster
Join Date: Nov 2000
Location: Tasmania, Australia
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at the risk of sounding like a unix geek...
man update_prebinding
(ie, see the manual page, using Terminal.app, for the command "update_prebinding")
(
Last edited by Brass; Mar 6, 2006 at 08:08 PM.
)
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Mac Elite
Join Date: Feb 2002
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Originally Posted by sc_markt
So how does one manually "optimize system performance" on their computer?
The xupport app supports redoing the "optimize system performancee" feature. Google it.
(I was wondering what was going on too. It almost made me think that you were downloading source files that were getting complied for your particular cpu during the "optimizing system performance" part of the install.)
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Baninated
Join Date: May 2005
Location: England
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Posting Junkie
Join Date: Jan 2006
Location: Colorado
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Macworld says it is repairing disk permissions. I don't really think it is though.
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Dedicated MacNNer
Join Date: May 2004
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Originally Posted by imitchellg5
Macworld says it is repairing disk permissions.
If that's what they say, they're incorrect.
I don't really think it is though.
Healthy skepticism! You can even see [FONT="Courier New"]update_prebinding[/FONT] appear in Activity Monitor if you're really paying attention!
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╭1.5GHz G4 15" PB, 2.0GB RAM, 128MB VRAM, 100GB 7200rpm HD, AEBS, BT kbd
╰2.0GHz T2500 20" iMac, 1.5GB RAM, 128MB VRAM, 250GB 7200rpm HD
http://www.DogLikeNature.com/
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