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You are here: MacNN Forums > Software - Troubleshooting and Discussion > macOS > What's a 'kernel_task' and is it important?

What's a 'kernel_task' and is it important?
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Steve SpotOn
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Join Date: Apr 2001
Location: Manchester, UK
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Jun 17, 2008, 09:12 AM
 
Over the last month my laptop's fans have started running for no apparent reason (even with just Mail open). I've checked the Activity monitor and it shows 'kernel_task' using 1.53GB of virtual memory. What is this and is this activity normal?

Steve
MacBook dual 2g, 2GB RAM, OS10.4.11
     
Chuckit
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Join Date: Oct 2001
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Jun 17, 2008, 11:54 AM
 
It's exactly what it says on the tin — it's the kernel, the core of the system. Virtual memory usage varies a lot from case to case and doesn't really mean very much in practical terms.
Chuck
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"Instead of either 'multi-talented' or 'multitalented' use 'bisexual'."
     
mduell
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Jun 17, 2008, 01:21 PM
 
If you don't understand virtual memory, don't worry about it.
     
Simon
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Jun 17, 2008, 01:48 PM
 
High fan RPMs are caused by CPU load, not VM.
     
   
 
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