Skip navigation
This discussion is archived

"Kernel Task" = 50MB??????

805 Views 5 Replies Latest reply: Oct 11, 2005 4:31 PM by jedidiah RSS
Matthew Lenda Calculating status...
Currently Being Moderated
Oct 11, 2005 4:31 PM
I don't know where else to put this... so yeah.

I was browsing my Activity Monitor today and noticed a process entitled "Kernel Task," which is taking up 50MB of my precious RAM.

Just out curiosity, what is this "Kernel Task"?
  • Barry Hemphill Level 7 Level 7 (33,065 points)
    Currently Being Moderated
    Oct 4, 2005 5:43 AM (in response to Matthew Lenda)
    Hello Matthew:

    You can get Apple's definition by searching the knowledge base articles (kernel task is an operating system process). More to the point, I suggest you read this knowledge base article that gives a good explanation of memory use under OS X 10.4.x.

    http://docs.info.apple.com/article.html?artnum=107918

    OS X uses a sophisticated algorithm to manage memory - both real and virtual. I suggest you not worry about memory use unless you experience performance problems.

    Barry
  • Frank STENGEL Level 4 Level 4 (1,840 points)
    Currently Being Moderated
    Oct 4, 2005 11:00 AM (in response to Matthew Lenda)
    By the way kernel_task is the place where most of the kernel activity takes place. That's where all your device drivers run, that's where all the (very low level) interaction between the system and the hardware takes place. Basically it is the visible core of your system.

    This is why it uses a lot (well not that much) of memory. This is also why, if one piece of harware is having problems it can start using a lot of CPU...
  • jedidiah Level 1 Level 1 (15 points)
    Currently Being Moderated
    Oct 10, 2005 9:41 AM (in response to Matthew Lenda)
    I'm curious about my kernel_task as well. It's currently using 67.3MB of real memory (not a huge deal), but it's also using a whopping 1GB of virtual memory. My hard drive spins ALL THE TIME and I'm thinking the kernel_task is to blame. I can't figure out how to stop it and it's really starting to worry me.
  • Frank STENGEL Level 4 Level 4 (1,840 points)
    Currently Being Moderated
    RE:
    Oct 10, 2005 11:00 AM (in response to jedidiah)
    Before blaming kernel_task, one should look at other possibilities. You say your HD spins all the time:
    * Can you elaborate?
    * In the Energy Saver preference pane is the "Put the hard disk to sleep whenever possible" cheked? Does it change anything if you check it?
    * Open console.app (found in /Applications/Utilities/). Open the console and system logs (command-shift-O, command-alt-O). Do things change all the time in these windows?
    * if you log in as another user, does the problem persist?
  • jedidiah Level 1 Level 1 (15 points)
    Currently Being Moderated
    Oct 11, 2005 4:31 PM (in response to Frank STENGEL)
    Frank,

    Good questions. Oddly enough, the problem seems to have solved itself after about a week. I didn't uninstall any preference panes or drivers or anything. Per another friend's suggestion, I had previously logged on as another user to see if the problem persisted and it did.

    Per your suggestion, I looked at the energy saver pane and switched from optimal performance to normal. I also started freeing up space on my hard drive (I don't know if this has anything to do with anything).

    Anyhow, the constant hard drive soft crunching sound is gone. Before, I'd hear it spin around no matter what I was doing until it went to sleep.

    Oh, and the console and system logs weren't showing any activity by the time I checked.

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.