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All replies
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Helpful answers
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Mar 17, 2013 5:13 AM in response to Mouzyby Lexiepex,To all:
For ML 10.8.3 a memory usage of 900 or more is quite normal, you'll see also that the CPU% is quite low. See my above post
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Mar 17, 2013 10:40 AM in response to mantheyblnby mantheybln,mantheybln wrote:
I'm having this problem as well on my MBPr 15,4 , 256 GB SSD and 8GB of RAM.
kernel_task shows 1.11 to 1.2 GB of memory consumption.
On my macbook unibody late 2008 (256GB SSD / 8GB RAM) with 10.8.2 the kernel_task shows only around 400MB.
Both macbooks have the similar configuration and installed tools.
After the update of my macbook unibody late 2008 from 10.8.2 the kernel_task shows around 600 MB of consumption instead of around 400 MB.
I'm not sure how to detect 3rd party kernel extension, but the kextstat tool shows only "com.apple".. modules.
I guess the difference 600MB -> 1.2GB to the MBPr is caused by different kernel modules for different hardware.
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Mar 17, 2013 11:23 AM in response to Mouzyby Lexiepex,did you count Safari webcontent and Kernel together in the older OS versions? And did you do this in 10.8.3 also? What differences do you get?
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Mar 17, 2013 11:33 AM in response to Lexiepexby blerim1,Memory normal yes, but kernel_task 900 , 1 gb i think is so much from old version 10.8.2 have 400 max 600 mb, and in Macbook pro 13 inch Battery is less , and heats up quickly , this is not normal apple developers must be fixed the problems
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Mar 17, 2013 11:38 AM in response to blerim1by Lexiepex,in old it was more than 1GB for Safari and Kernel together, that has not changed very much: OS AND Safari have been changed in this new update.
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Mar 18, 2013 2:27 PM in response to Mouzyby danielfromemerald hills,I had this on my MBP mid-2010 8GB. Also observed >50% System CPU utilization.
I restarted while holding the shift key down. Looked as though the firmware was being updated (progress bar on grey apple start-up screen.
Once this occurred, upon reboot, the problem was gone.
I suspect a firmware update failed to install during the 10.8.3 install.
Hope this helps(tm)!
Dan.
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Mar 19, 2013 3:25 AM in response to danielfromemerald hillsby Mouzy,What you did , was just enteeing safe mode. If you restart your mac , the problem will be back..:/
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Mar 19, 2013 9:00 AM in response to Mouzyby danielfromemerald hills,Hmmm... I may have indeed just started in safe mode. However, rebooting without holding the shift-key down does not cause the problem to return.
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Mar 19, 2013 7:47 PM in response to Mouzyby Attilas,Have a Macbook Air with 8 gig ram. After upgrade to 10.8.3 i noticed 1.2Gig kernel_task then found this task. Nothing installed since a while, only the OS update +Xcode update for me.
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Mar 27, 2013 3:01 PM in response to Mouzyby rikb2,i'm also bumping into this thread as someone now using 10.8 for the first time on a new 8 Gig MBP. my kernel task reliably uses > 1G and so i'm wondering what that's about. i got a good deal on the just ( ! ) 8 gig MBP, and the only extension i have are:
- MenuMeters
- Flash
- TeXdistribution
could any of these be the issue? else, if MacOS is now taking > 1 G for system, it's seeming even more like Microsoft.
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Apr 9, 2013 9:06 PM in response to Mouzyby bheiser1,Well how about this ... 2.57 GB for the kernel_task. Safari/webcontent etc are listed separately. This is on an early 2013 rMBP (10,1) running 10.8.3.
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Sep 22, 2013 10:12 AM in response to chifromhong kongby felipetrovador,Pals, I think the explanation is:
http://support.apple.com/kb/HT3246#intel4000
Intel HD graphocs 4000 consumes up to 768Mb from RAM...
Hope that helps...
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Nov 14, 2013 7:24 AM in response to Mouzyby descobarpicasso,I have a macbook pro early 2011(13-inch) with the last OSX(Mavericks). My Activity Monitor shows 372.6Mb max on kernel_task activity, but my system starts slow(above 3min or more) and in some moments it becomes unuseful and very laggy, I don't know why. I'm start believing it's something with the HDD but what if I replace it and the problem is still there...

