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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Mac OS X > mds, mdworker - what do they do?

mds, mdworker - what do they do?
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Forum Regular
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Dec 3, 2007, 08:55 PM
 
besides sucking up CPU? Just idly browsing with Safari, fan starts ramping up to 5000 rpm plus, CPU temp starts climbing, so I check Activity Monitor, & these two things seem to have taken over. A few minutes later, the fan starts easing off, temp drops, things get back to normal. Then they start up again.

Just what are these processes, what do they do, & does this sound like normal behaviour?

MacBook 1.83GHz, 2 GB RAM, 10.5.1

     
Clinically Insane
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Dec 3, 2007, 08:59 PM
 
They are the behind-the-scenes face of Spotlight. Sounds like it's just indexing something.
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Dec 3, 2007, 09:56 PM
 
I have the same issues on my iBook since upgrading to Leopard. At times nearly my entire cpu will be chewed up by one of those processes, even when spotlight says it isn't actively indexing. A few times it's been so bad that I've had to force quit them just to be able to use my computer. I never had that issue under Tiger.
     
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Dec 3, 2007, 10:01 PM
 
Originally Posted by gradient View Post
I have the same issues on my iBook since upgrading to Leopard. At times nearly my entire cpu will be chewed up by one of those processes, even when spotlight says it isn't actively indexing. A few times it's been so bad that I've had to force quit them just to be able to use my computer. I never had that issue under Tiger.
Sometimes the processes go out of control, especially on laptops, when you keep putting them to sleep.
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Dec 3, 2007, 11:12 PM
 
Originally Posted by C.A.T.S. CEO View Post
Sometimes the processes go out of control, especially on laptops, when you keep putting them to sleep.
What purpose would that serve? I do sleep my iBook often, if I don't need to use it for a period of time, to save on battery power - isn't that the point?
     
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Dec 4, 2007, 03:17 AM
 
Originally Posted by gradient View Post
I have the same issues on my iBook since upgrading to Leopard. At times nearly my entire cpu will be chewed up by one of those processes, even when spotlight says it isn't actively indexing. A few times it's been so bad that I've had to force quit them just to be able to use my computer. I never had that issue under Tiger.
I've had the same problem on Tiger with my iBook G4. I never found a solution, though my new MacBook running Leopard hasn't seemed to have the same issue.
     
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Dec 4, 2007, 05:08 AM
 
You could trash Spotlight and disable it.
     
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Dec 4, 2007, 04:24 PM
 
Hmm, no.
     
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Dec 4, 2007, 04:42 PM
 
Originally Posted by iMan G5 View Post
You could trash Spotlight and disable it.
Spotlight is apart of the system, trashing Spotlight would trash the system.
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Dec 4, 2007, 04:59 PM
 
Just take out your Hard Drive. Then it wont have anything to index, and you'll be a-ok.
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Dec 4, 2007, 07:25 PM
 
I trashed Spotlight.app and disabled it through a Terminal command. I use Quicksilver now.
     
   
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