kuerbiskopf
Level 1 (2 points)

Q: kernel_task using 100% CPU

Hey guys,

my Macbook Air 2013 is two month old, and ever since I upgraded to Mavericks, kernel_task will sometimes eat up to 100% of my CPU. The system will remain usable, but battery life goes down significantly. A reboot will solve this issue for a time, so will quitting all applications in the menu bar, but some time later kernel_task will return in full force.

Things I did and checked:

  • no faulty sensor
  • hardware check
  • no overheating
  • no app seems to be directly responsible
  • SMC and NVRAM/PRAM reset
  • repaired disk permissions and repaired SSD through the recovery partition
  • not yet reinstalled Mavericks
  • no issues in safe mode, at least yet

 

I suspect that this is caused by some kernel extension, but I have no idea which one and how to fix that.

I have in the past installed: some fishy USB to Ethernet driver, BOOM (system wide equilizer), LaTEX and probably more things.

MacBook Air, OS X Mavericks (10.9)

Posted on Nov 3, 2013 6:30 AM

by Linc Davis,Solvedanswer
Linc Davis Linc Davis
Level 10 (207,936 points)
Applications
A:

Your system is very heavily modified. I suggest you start by uninstalling "Boom."

Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.

Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.

I never install system modifications myself, and I don't know how to uninstall them. You'll have to do your own research to find that information.

Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmyrmac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button.

Back up all data before making any changes. You generally have to reboot in order to complete an uninstallation.

If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.

You may be advised by others to try to remove complex system modifications by hunting for files by name, or by running "utilities" that purport to remove software. I don't give such advice. Those tactics often will not work and may  make the problem worse.

Posted on Nov 3, 2013 3:36 PM

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kuerbiskopf

Q: kernel_task using 100% CPU

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  • Helpful answers

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  • by Paul Williams3,

    Paul Williams3 Paul Williams3 Dec 11, 2013 8:14 PM in response to Linc Davis
    Level 2 (430 points)
    Dec 11, 2013 8:14 PM in response to Linc Davis

    My kernel_task memory usage is topping 700mb. Any help would be greatly appreciated -

     

    Step 1:

     

    at.obdev.nke.LittleSnitch (4052)

    com.AmbrosiaSW.AudioSupport (4.1.2)

     

    Step 2:

     

    com.microsoft.office.licensing.helper

    com.intego.BackupManagerPro.daemon

    com.intego.BackupAssistant.daemon

    com.ambrosiasw.ambrosiaaudiosupporthelper.daemon

    com.adobe.SwitchBoard

    com.adobe.fpsaud

    at.obdev.littlesnitchd

     

     

    Step 3:

     

    org.mozilla.firefox.11472

    com.adobe.Photoshop.28720

    com.brother.utility.NETserver.384

    com.brother.utility.USBserver.9360

    com.tomtom.HOMERunnerApp.56704

    net.culater.SIMBL_Agent.47728

    net.culater.SIMBL.Agent

    com.maintain.SystemEvents

    com.intego.backupmanagerpro.agent

    com.intego.backupassistant.agent

    com.brother.LOGINserver

    at.obdev.LittleSnitchUIAgent

    com.adobe.ARM.df0ab5bbe6f698196fcc21e3c1e66dcb758bd911f4d637272d9d8109

    com.adobe.AAM.Scheduler-1.0

     

    Step 4:

     

    /Library/Components:

     

    /Library/Extensions:

    ATTOCelerityFC8.kext

    ATTOExpressSASHBA2.kext

    ATTOExpressSASRAID2.kext

    ArcMSR.kext

    CalDigitHDProDrv.kext

    HighPointIOP.kext

    HighPointRR.kext

    LittleSnitch.kext

    PromiseSTEX.kext

    SoftRAID.kext

     

    /Library/Frameworks:

    AEProfiling.framework

    AERegistration.framework

    Adobe AIR.framework

    AudioMixEngine.framework

    NyxAudioAnalysis.framework

    PluginManager.framework

    iTunesLibrary.framework

     

    /Library/Input Methods:

     

    /Library/Internet Plug-Ins:

    Default Browser.plugin

    Flash Player.plugin

    JavaAppletPlugin.plugin

    Quartz Composer.webplugin

    QuickTime Plugin.plugin

    SharePointBrowserPlugin.plugin

    SharePointWebKitPlugin.webplugin

    flashplayer.xpt

    nsIQTScriptablePlugin.xpt

     

    /Library/Keyboard Layouts:

     

    /Library/LaunchAgents:

    at.obdev.LittleSnitchUIAgent.plist

    com.adobe.AAM.Updater-1.0.plist

    com.brother.LOGINserver.plist

    com.intego.backupassistant.agent.plist

    com.intego.backupmanagerpro.agent.plist

    com.maintain.LogOut.plist

    com.maintain.Restart.plist

    com.maintain.ShutDown.plist

    com.maintain.Sleep.plist

    com.maintain.SystemEvents.plist

    net.culater.SIMBL.Agent.plist

     

    /Library/LaunchDaemons:

    at.obdev.littlesnitchd.plist

    com.adobe.SwitchBoard.plist

    com.adobe.fpsaud.plist

    com.ambrosiasw.ambrosiaaudiosupporthelper.daemon.plist

    com.intego.BackupAssistant.daemon.plist

    com.intego.BackupManagerPro.daemon.plist

    com.maintain.CocktailScheduler.plist

    com.microsoft.office.licensing.helper.plist

     

    /Library/PreferencePanes:

    Flash Player.prefPane

     

    /Library/PrivilegedHelperTools:

    com.microsoft.office.licensing.helper

     

    /Library/QuickLook:

    iBooksAuthor.qlgenerator

    iWork.qlgenerator

     

    /Library/QuickTime:

    AppleIntermediateCodec.component

    AppleMPEG2Codec.component

     

    /Library/ScriptingAdditions:

    Adobe Unit Types.osax

    SIMBL.osax

     

    /Library/Spotlight:

    Microsoft Office.mdimporter

    iBooksAuthor.mdimporter

    iWork.mdimporter

     

    /Library/StartupItems:

    Intego Backup Assistant

    Intego Backup Manager Pro

     

    /etc/mach_init.d:

     

    /etc/mach_init_per_login_session.d:

     

    /etc/mach_init_per_user.d:

     

    Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

    Library/Fonts:

    Jeffrson.ttf

     

    Library/Input Methods:

    .localized

     

    Library/Internet Plug-Ins:

     

    Library/Keyboard Layouts:

     

    Library/LaunchAgents:

    com.adobe.AAM.Updater-1.0.plist

    com.adobe.ARM.df0ab5bbe6f698196fcc21e3c1e66dcb758bd911f4d637272d9d8109.plist

    com.apple.CSConfigDotMacCert-pcwilliams@me.com-SharedServices.Agent.plist

    com.apple.FolderActions.enabled.plist

    com.apple.FolderActions.folders.plist

     

    Library/PreferencePanes:

     

    Library/Services:

    .localized

     

    Step 5:

     

    SIMBL Agent, SpeechSynthesisServer, TomTomHOMERunner

  • by pchiu3375,

    pchiu3375 pchiu3375 Dec 12, 2013 12:17 AM in response to Paul Williams3
    Level 1 (0 points)
    Dec 12, 2013 12:17 AM in response to Paul Williams3

    Hi,

     

    I have the same issue with a third-party software called "Paragon NTFS" (http://www.paragon-software.com/home/ntfs-mac/), even in its latest version (v11.0.112).

     

    kernel_task was 100% high for no reason (no NTFS drive was mounted, nor any NTFS formatted device plugged-in).

     

    Everything went back to normal after *disabling the driver using its control panel in System Preferences*.

     

    Got a clue using the previously mentioned command :

    "kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -ef"

  • by Pierre_Nel,

    Pierre_Nel Pierre_Nel Dec 13, 2013 12:21 AM in response to kuerbiskopf
    Level 1 (0 points)
    Dec 13, 2013 12:21 AM in response to kuerbiskopf

    Same issue here - Macbook Air that's only a few months old + Mavericks - but running the initial command - kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -ef" - doesn't return any results. Only a reboot fixes it :-/

  • by Jrs_Mac,

    Jrs_Mac Jrs_Mac Dec 13, 2013 5:43 AM in response to Pierre_Nel
    Level 1 (0 points)
    Dec 13, 2013 5:43 AM in response to Pierre_Nel

    I thought removing Sound Flower fixed my issue, but it has returned.  I still get one core pegged on the cpu (from the kernal_task) every few days and alternately sleeping the computer and plugging something into the headphone jack seems to stop the problem.

     

    I can't reliably cause the issue to occur and I'm not sure exactly what combination of actions fixes it.

  • by apverde,

    apverde apverde Dec 21, 2013 10:49 AM in response to Linc Davis
    Level 1 (0 points)
    Dec 21, 2013 10:49 AM in response to Linc Davis

    I've got an 2009 MacBook that's starting to slow down - I see high kernal_task usage, so I thought I'd run the diagnostic to see if that helps.

     

    Step 1:

    com.rogueamoeba.HermesAudio (3.0.0)

     

    Step 2:

    com.rogueamoeba.hermes

    com.adobe.fpsaud

     

    Step 3:

    org.mozilla.firefox.12528

    com.rockysandstudio.FreeMemory.3376

    com.google.keystone.user.agent

     

    Step 4:

    /Library/Components:

     

    /Library/Extensions:

    ATTOCelerityFC8.kext

    ATTOExpressSASHBA2.kext

    ATTOExpressSASRAID2.kext

    ArcMSR.kext

    CalDigitHDProDrv.kext

    HighPointIOP.kext

    HighPointRR.kext

    PromiseSTEX.kext

    SoftRAID.kext

     

    /Library/Frameworks:

    AEProfiling.framework

    AERegistration.framework

    AudioMixEngine.framework

    NyxAudioAnalysis.framework

    PluginManager.framework

    TSLicense.framework

    iTunesLibrary.framework

     

    /Library/Input Methods:

     

    /Library/Internet Plug-Ins:

    Default Browser.plugin

    Flash Player.plugin

    Flip4Mac WMV Plugin.plugin

    Google Earth Web Plug-in.plugin

    OfficeLiveBrowserPlugin.plugin

    Quartz Composer.webplugin

    QuickTime Plugin.plugin

    Scorch.plugin

    Silverlight.plugin

    flashplayer.xpt

    iPhotoPhotocast.plugin

    nsIQTScriptablePlugin.xpt

     

    /Library/Keyboard Layouts:

     

    /Library/LaunchAgents:

     

    /Library/LaunchDaemons:

    com.adobe.fpsaud.plist

    com.rogueamoeba.hermes.plist

     

    /Library/PreferencePanes:

    Flash Player.prefPane

    Flip4Mac WMV.prefPane

     

    /Library/PrivilegedHelperTools:

     

    /Library/QuickLook:

    GBQLGenerator.qlgenerator

    iBooksAuthor.qlgenerator

    iWork.qlgenerator

     

    /Library/QuickTime:

    AppleIntermediateCodec.component

    AppleMPEG2Codec.component

    Flip4Mac WMV Advanced.component

    Flip4Mac WMV Export.component

    Flip4Mac WMV Import.component

     

    /Library/ScriptingAdditions:

     

    /Library/Spotlight:

    GBSpotlightImporter.mdimporter

    Microsoft Office.mdimporter

    iBooksAuthor.mdimporter

    iWork.mdimporter

     

    /Library/StartupItems:

     

    /etc/mach_init.d:

     

    /etc/mach_init_per_login_session.d:

     

    /etc/mach_init_per_user.d:

     

    Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

    Library/Fonts:

     

    Library/Input Methods:

    .localized

     

    Library/Internet Plug-Ins:

     

    Library/Keyboard Layouts:

     

    Library/LaunchAgents:

    com.google.keystone.agent.plist

    com.spotify.webhelper.plist

     

    Library/PreferencePanes:

     

    Library/Services:

    .localized

     

    Step 5:

    iTunesHelper

     

    Thanks for any help you can provide.

  • by -Chad-,

    -Chad- -Chad- Dec 23, 2013 8:05 AM in response to kuerbiskopf
    Level 1 (15 points)
    Dec 23, 2013 8:05 AM in response to kuerbiskopf

    My kernal_task issue sort of went away after I disabled "Boom", but I was still seeing high CPU usage when idle.  Today I noticed another similar issue in Xcode, which turned out to be caused by me having edited my etc/hosts file to change my localhost ip to my actual IP instead of the default. The fix was to change etc/hosts so localhost is now the default again... my value:

     

    10.0.1.17  localhost

     

    This should work since that is my IP. However, I changed it back in etc/hosts to:

     

    127.0.0.1  localhost

     

    and Xcode started working and CPU usage seems better for the moment. It's possible this kernal_task issue is similar to the Xcode issue, so I thought I'd mention it here. This would only work for you if you edited etc/hosts at some point to map localhost to your actual IP.

  • by RPashman,

    RPashman RPashman Jan 3, 2014 3:31 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 3, 2014 3:31 PM in response to Linc Davis

    Thanks Linc.


    Here's my info:

     

    com.rogueamoeba.InstantOn (6.0.3)

    com.paceap.kext.pacesupport.snowleopard (5.9.1)

     

    com.wibu.CodeMeter.Server

    com.paceap.pacesupport

    com.paceap.eden.licensed

    com.microsoft.office.licensing.helper

    com.macpaw.CleanMyMac2.Agent

    com.adobe.fpsaud

     

     

    * * * * * "/Library/Internet Plug-Ins/plugins.settings">/dev/null 2>&1

     

    com.getdropbox.dropbox.31360

    com.fiplab.facetab.35056

    com.fiplab.MenuTabHelper

    com.motu.MOTULauncher

    com.ApogeePopup.plist

    com.macpaw.CleanMyMac2Helper.trashWatcher

    com.macpaw.CleanMyMac2Helper.scheduledScan

    com.macpaw.CleanMyMac2Helper.diskSpaceWatcher

    com.google.keystone.user.agent

    com.facebook.videochat.rpashman.updater

    com.cnet.ttengine

    com.adobe.AAM.Scheduler-1.0

     

    /Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

    /Library/Components:

     

    /Library/Extensions:

    ATTOCelerityFC8.kext

    ATTOExpressSASHBA2.kext

    ATTOExpressSASRAID2.kext

    ArcMSR.kext

    CalDigitHDProDrv.kext

    HighPointIOP.kext

    HighPointRR.kext

    PromiseSTEX.kext

    SoftRAID.kext

     

    /Library/Frameworks:

    AECore.framework

    AEProfiling.framework

    AERegistration.framework

    Adobe AIR.framework

    AudioMixEngine.framework

    Compressor.framework

    EWSMac.framework

    Fantom.framework

    FxPlug.framework

    HPDeviceModel.framework

    HPPml.framework

    HPServicesInterface.framework

    HPSmartPrint.framework

    L6TWXY.framework

    MediaServerAPI.framework

    NyxAudioAnalysis.framework

    PACEEdenExperience.framework

    PluginManager.framework

    ProFX.framework

    ProMetadataSupport.framework

    Qmaster.framework

    TSLicense.framework

    VISA.framework

    WibuCmMacX.framework

    iLifeFaceRecognition.framework

    iLifeKit.framework

    iLifePageLayout.framework

    iLifeSQLAccess.framework

    iLifeSlideshow.framework

    iTunesLibrary.framework

     

    /Library/Input Methods:

     

    /Library/Internet Plug-Ins:

    AmazonMP3DownloaderPlugin.plugin

    AmazonMP3DownloaderPlugin101750.plugin

    CouponPrinter-FireFox_v2.plugin

    CouponPrinter-Safari.webplugin

    Default Browser.plugin

    DirectorShockwave.plugin

    Disabled Plug-Ins

    Flash Player.plugin

    Flip4Mac WMV Plugin.plugin

    Flip4Mac WMV Plugin.webplugin

    GarminGpsControl.plugin

    JavaAppletPlugin.plugin

    LogMeIn.plugin

    LogMeInSafari32.plugin

    OfficeLiveBrowserPlugin.plugin

    Photo Center Plugin.plugin

    Quartz Composer.webplugin

    QuickTime Plugin.plugin

    RealPlayer Plugin.plugin

    SharePointBrowserPlugin.plugin

    SharePointWebKitPlugin.webplugin

    Silverlight.plugin

    Unity Web Player.plugin

    Unused

    flashplayer.xpt

    iLok Client Helper Plugin

    iLokClientHelper.plugin

    iPhotoPhotocast.plugin

    nsIQTScriptablePlugin.xpt

     

    /Library/Internet Plug-Ins (Disabled):

    Flash Player.plugin

     

    /Library/Keyboard Layouts:

     

    /Library/LaunchAgents:

    com.ApogeePopup.plist

    com.adobe.AAM.Updater-1.0.plist

    com.motu.MOTULauncher.plist

     

    /Library/LaunchDaemons:

    PACESupport.plist

    com.adobe.fpsaud.plist

    com.macpaw.CleanMyMac2.Agent.plist

    com.microsoft.office.licensing.helper.plist

    com.paceap.eden.licensed.plist

     

    /Library/PreferencePanes:

    Apple Qmaster.prefPane

    Flash Player.prefPane

    Flip4Mac WMV.prefPane

    NIUSBAudio.prefPane

     

    /Library/PrivilegedHelperTools:

    com.macpaw.CleanMyMac2.Agent

    com.microsoft.office.licensing.helper

    licenseDaemon.app

     

    /Library/QuickLook:

    iBooksAuthor.qlgenerator

    iWork.qlgenerator

     

    /Library/QuickTime:

    AppleAVCIntraCodec.component

    AppleHDVCodec.component

    AppleIntermediateCodec.component

    AppleMPEG2Codec.component

    AppleProRes422.component

    AppleProResCodec.component

    DVCPROHDCodec.component

    DVCPROHDMuxer.component

    DVCPROHDVideoDigitizer.component

    DVCPROHDVideoOutput.component

    DVCPROHDVideoOutputClock.component

    DVCPROHDVideoOutputCodec.component

    DesktopVideoOut.component

    DivX 6 Decoder.component

    DivX Decoder.component

    FCP Uncompressed 422.component

    Flip4Mac WMV Advanced.component

    Flip4Mac WMV Export.component

    Flip4Mac WMV Import.component

    IMXCodec.component

    LiveType.component

     

    /Library/ScriptingAdditions:

    Adobe Unit Types

    Adobe Unit Types.osax

    YouSendItOSAX.osax

     

    /Library/Spotlight:

    Microsoft Office.mdimporter

    iBooksAuthor.mdimporter

    iWeb.mdimporter

    iWork.mdimporter

     

    /Library/StartupItems:

    Fantom

    M-Audio Firmware Loader

    Qmaster

     

    /etc/mach_init.d:

     

    /etc/mach_init_per_login_session.d:

     

    /etc/mach_init_per_user.d:

     

    Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

    Library/Fonts:

    Brush Script

     

    Library/Frameworks:

    DL70ACE.framework

    DL70AGM.framework

    DL70ARE.framework

    DL70AXE16SharedExpat.framework

    DL70AXE8SharedExpat.framework

    DL70AdobeXMP.framework

    DL70BIB.framework

    DL70BIBUtils.framework

    DL70CoolType.framework

    DL70JP2K.framework

    DL70PDFL.framework

    EWSMac.framework

     

    Library/Internet Plug-Ins:

    FacebookVideoCalling.bundle

     

    Library/Keyboard Layouts:

     

    Library/LaunchAgents:

    com.adobe.AAM.Updater-1.0.plist

    com.apple.AddressBook.ScheduledSync.PHXCardDAVSource.F0245D19-6137-4CB1-AB87-E33 B7A4D75FD.plist

    com.apple.FolderActions.enabled.plist

    com.apple.FolderActions.folders.plist

    com.cnet.ttengine.plist

    com.facebook.videochat.myappleid.plist

    com.google.keystone.agent.plist

    com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist

    com.macpaw.CleanMyMac2Helper.scheduledScan.plist

    com.macpaw.CleanMyMac2Helper.trashWatcher.plist

     

    Library/PhonePlugins:

    MOTZ3.phoneplugin

     

    Library/PreferencePanes:

    .152W591MTG1DMOIDCB41FQMWWG

    Opera Preferences

    TechTracker.prefPane

     

    Library/Services:

     

    MenuTab for Facebook, Dropbox, ApogeeRegistration, VerizonUpdateCenter

  • by John Galt,

    John Galt John Galt Jan 3, 2014 3:39 PM in response to RPashman
    Level 8 (48,715 points)
    Mac OS X
    Jan 3, 2014 3:39 PM in response to RPashman

    RPashman, please start a new Discussion.

     

    You are replying to someone else's topic that was solved weeks ago, and there is no guarantee Linc Davis or anyone else will see it. When you post that new Discussion, please describe the problems you are experiencing. Thanks!

  • by YaronO,

    YaronO YaronO Jan 5, 2014 6:41 AM in response to Linc Davis
    Level 1 (0 points)
    Jan 5, 2014 6:41 AM in response to Linc Davis

    Step 1:

    com.Cycling74.driver.Soundflower (1.5.1)

     

    Step 2:

    com.tvmobili.tvmobilisvcd

    com.sec.faxdb

    com.microsoft.office.licensing.helper

    com.google.keystone.daemon

    com.adobe.SwitchBoard

    com.adobe.fpsaud

     

    Step 3:

    com.adobe.Photoshop.27840

    org.videolan.vlc.34352

    com.google.GoogleTalkPluginD.49136.AE7D0D1E-FC4D-442B-A3CB-55259D2F0E46

    com.microsoft.autoupdate2.53536

    com.microsoft.autoupdate.fba.53360

    com.microsoft.Excel.3552

    com.readitlater.PocketMac.35760

    com.spotify.client.25200

    com.google.android.mtpagent.9008

    com.google.Chrome.12880

    com.evernote.EvernoteHelper

    com.tvmobili.artwork

    com.hp.messagecenter.launcher

    com.google.keystone.system.agent

    com.divx.update.agent

    com.divx.dms.agent

    com.victorpimentel.TVShowsHelper

    com.spotify.webhelper

    com.facebook.videochat.yo.updater

    com.adobe.ARM.df0ab5bbe6f698196fcc21e3c1e66dcb758bd911f4d637272d9d8109

     

    Step 4:

    /Library/Components:

     

    /Library/Extensions:

    ATTOCelerityFC8.kext

    ATTOExpressSASHBA2.kext

    ATTOExpressSASRAID2.kext

    ArcMSR.kext

    CalDigitHDProDrv.kext

    HighPointIOP.kext

    HighPointRR.kext

    PromiseSTEX.kext

    SoftRAID.kext

     

    /Library/Frameworks:

    AEProfiling.framework

    AERegistration.framework

    Adobe AIR.framework

    AudioMixEngine.framework

    DivX Toolkit.framework

    DivXInstallerUtilities.framework

    NyxAudioAnalysis.framework

    PluginManager.framework

    TSLicense.framework

    iTunesLibrary.framework

     

    /Library/Input Methods:

     

    /Library/Internet Plug-Ins:

    AdobeAAMDetect.plugin

    AdobePDFViewer.plugin

    AdobePDFViewerNPAPI.plugin

    Default Browser.plugin

    DivX Web Player.plugin

    Flash Player.plugin

    Flip4Mac WMV Plugin.plugin

    JavaAppletPlugin.plugin

    LogMeIn.plugin

    LogMeInSafari32.plugin

    OVSHelper.plugin

    Quartz Composer.webplugin

    QuickTime Plugin.plugin

    SharePointBrowserPlugin.plugin

    SharePointWebKitPlugin.webplugin

    Silverlight.plugin

    flashplayer.xpt

    googletalkbrowserplugin.plugin

    npgtpo3dautoplugin.plugin

    nsIQTScriptablePlugin.xpt

    o1dbrowserplugin.plugin

     

    /Library/Keyboard Layouts:

     

    /Library/LaunchAgents:

    com.adobe.AAM.Updater-1.0.plist

    com.divx.dms.agent.plist

    com.divx.update.agent.plist

    com.google.keystone.agent.plist

    com.hp.messagecenter.launcher.plist

    com.oracle.java.Java-Updater.plist

    com.tvmobili.artwork.plist

     

    /Library/LaunchDaemons:

    com.adobe.SwitchBoard.plist

    com.adobe.fpsaud.plist

    com.google.keystone.daemon.plist

    com.microsoft.office.licensing.helper.plist

    com.oracle.java.Helper-Tool.plist

    com.sec.faxdb.plist

    com.tvmobili.tvmobilisvcd.plist

     

    /Library/PreferencePanes:

    EyeConnect.prefPane

    Flash Player.prefPane

    Flip4Mac WMV.prefPane

    JavaControlPanel.prefPane

     

    /Library/PrivilegedHelperTools:

    com.microsoft.office.licensing.helper

     

    /Library/QuickLook:

    iBooksAuthor.qlgenerator

    iWork.qlgenerator

     

    /Library/QuickTime:

    AppleIntermediateCodec.component

    AppleMPEG2Codec.component

    DivX Decoder.component

    DivX Encoder.component

    Flip4Mac WMV Advanced.component

    Flip4Mac WMV Export.component

    Flip4Mac WMV Import.component

     

    /Library/ScriptingAdditions:

    Adobe Unit Types.osax

    YouSendItOSAX.osax

     

    /Library/Spotlight:

    Microsoft Office.mdimporter

    iBooksAuthor.mdimporter

    iWork.mdimporter

     

    /Library/StartupItems:

    EyeConnect

     

    /etc/mach_init.d:

     

    /etc/mach_init_per_login_session.d:

     

    /etc/mach_init_per_user.d:

     

    Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

    Library/Fonts:

    HelveticaNeue.ttf

     

    Library/Input Methods:

    .localized

     

    Library/Internet Plug-Ins:

    .DS_Store

    FacebookVideoCalling.bundle

    Picasa.plugin

    WebEx64.plugin

     

    Library/Keyboard Layouts:

     

    Library/LaunchAgents:

    com.adobe.ARM.df0ab5bbe6f698196fcc21e3c1e66dcb758bd911f4d637272d9d8109.plist

    com.apple.CSConfigDotMacCert-xxxxxx@me.com-SharedServices.Agent.plist

    com.apple.FolderActions.enabled.plist

    com.apple.FolderActions.folders.plist

    com.facebook.videochat.yo.plist

    com.spotify.webhelper.plist

    com.victorpimentel.TVShowsHelper.plist

     

    Library/PreferencePanes:

    MusicManager.prefPane

    Perian.prefPane

    TVShows.prefPane

     

    Library/QuickTime:

    AC3MovieImport.component

    Perian.component

     

    Library/Services:

    .localized

     

    Step 5:

    FamiliarHelper, iTunesHelper, uTorrent, YouSendIt Desktop App, Google Chrome, Android File Transfer Agent, Spotify, Alfred, Dropbox, Spotify

  • by kuerbiskopf,

    kuerbiskopf kuerbiskopf Jan 5, 2014 6:53 AM in response to kuerbiskopf
    Level 1 (2 points)
    Jan 5, 2014 6:53 AM in response to kuerbiskopf

    Okay, little update:

    Boom has been updated to not trigger kernel_task to go 100% which means you can install it and it won't mess with your battery life. However Mavericks itself still has issues with audio devices which include headphones, headphones with controlls and mic, Airplay and Soundflower, which means that this problem still exists. It has nothing to do with Boom though.

    I've been digging around and concluded that this is a system bug by Mavericks. It seems to happen on 2013 Macbooks more often (maybe because of a new audio chip?) and does not hapen on Mountain Lion. Some apps (like Boom used to) that mess with audio are likely to trigger kernel_task to go bananas, however normal use will too.

    One possible solution is connecting headphones, closing the lid, disconnecting the headphones and opening the lid again. Or a reboot, which is almost always impractical.

     

    This is so annoying.

  • by kuerbiskopf,

    kuerbiskopf kuerbiskopf Jan 5, 2014 6:56 AM in response to -Chad-
    Level 1 (2 points)
    Jan 5, 2014 6:56 AM in response to -Chad-

    I think your issues with xcode are unrelated, even if the symptoms are the same. kernel_task seems to have soooo many bugs (just google kernel task 100%). Mine seems to be related to audio only.

  • by Badazrael,

    Badazrael Badazrael Jan 5, 2014 8:39 AM in response to kuerbiskopf
    Level 1 (0 points)
    Jan 5, 2014 8:39 AM in response to kuerbiskopf

    I found a temporary Solution for the kernel_task Problem.

     

    (If you dont want to plug the power cable on and off.)

     

    I bought a mini fan for about 10 € put it next to my macbook pro and turned it to the direction where the battery is. Wait a minute and watch in your activity monitor how the kernel_task slows down from 200% to 4,3 or something like that.. The only thing whats annoying is the sound wich comes from the fan. But thats a small price to pay :-)

     

    I think another solution would be to completely delete your hardrive and install Snow Leopard.

    But im to lazy to try that out so i just stick with my fan solution.

     

    I have this setup for a year now and never had any kernel_task overheating (or whatever you call it) problems again. (even in games with much cpu usage)

  • by esb885,

    esb885 esb885 Jan 10, 2014 12:30 PM in response to kuerbiskopf
    Level 1 (0 points)
    Jan 10, 2014 12:30 PM in response to kuerbiskopf

    I am having the same issue, kernel_task blowing up to over 100% of cpu. I believe I have tied the cause to Spotify, using the headphone jack, and the machine going to sleep.

     

    If I wake up my late 2013 MacBookAir on Maveriks when spotify was paused in the background and headphones plugged in, the CPU is over 100%. Turning off spotify, unplugging the headphones, and going back into sleep seems to bring kernel_task back to normal cpu usage range.

     

    I have also noticed that killing Spotify and opening iTunes will bring the usage back down. Maybe Spotify is a red herring here, but it seems to work in getting kernel_task back down to <1%, albiet in a very annoying way.

  • by d4v1dv00,

    d4v1dv00 d4v1dv00 Jan 15, 2014 4:07 PM in response to esb885
    Level 1 (0 points)
    Jan 15, 2014 4:07 PM in response to esb885

    I think generally something to with earphones, nothing to do with either iTunes or Spotify because the latter 2 were not running and still the kernel_task is running 100%. Not until I unplug the earphone and waited for a few seconds and the CPU usage dropped to normal usage.

     

    Definitely something @Apple need to fix.

  • by Branwyn151,

    Branwyn151 Branwyn151 Jan 17, 2014 10:00 AM in response to Linc Davis
    Level 1 (0 points)
    Jan 17, 2014 10:00 AM in response to Linc Davis

    Hi Linc,

     

    I'm hoping you might be willing to look over my results and share and thoughts or insight you may have. I've been experiencing major lag issues since installing Mavericks and have gone through some basics (recovery boot/repair disk, repair permissions, updated flash & Java, run etrecheck) and while having some minor improvements, still having issues. Have been scouring forums for help and tips to try. Staying on external power over battery power helps (100% cpu kernel_task at times as opposed to over 200%), but still experiencing problems with lag as well as slow computer start ups/reboots. I appreciate any knowledge you can share!

     

    Step 1:

    Blank

     

    Step 2:

    com.oracle.java.Helper-Tool

    com.microsoft.office.licensing.helper

    com.adobe.SwitchBoard

    com.adobe.fpsaud

     

    Step 3:

    com.adobe.PDApp.AAMUpdatesNotifier.7600.0F2ECD39-3908-4433-A459-CAB1003A961C

    com.oracle.java.Java-Updater

    com.adobe.CS5ServiceManager

    com.google.keystone.user.agent

    com.adobe.ARM.925793fb327152fd34795896fa1fb9ffa268b2a852256fe56609efa3

    com.adobe.AAM.Scheduler-1.0

     

    Step 4:

    /Library/Address Book Plug-Ins:

    SkypeABDialer.bundle

    SkypeABSMS.bundle

     

     

    /Library/Components:

     

     

    /Library/Extensions:

    ATTOCelerityFC8.kext

    ATTOExpressSASHBA2.kext

    ATTOExpressSASRAID2.kext

    ArcMSR.kext

    CalDigitHDProDrv.kext

    HighPointIOP.kext

    HighPointRR.kext

    PromiseSTEX.kext

    SoftRAID.kext

     

     

    /Library/Frameworks:

    AEProfiling.framework

    AERegistration.framework

    Adobe AIR.framework

    AudioMixEngine.framework

    DivX Toolkit.framework

    HPDeviceModel.framework

    HPPml.framework

    HPServicesInterface.framework

    HPSmartPrint.framework

    HPSmartX.framework

    NyxAudioAnalysis.framework

    PluginManager.framework

    iLifeFaceRecognition.framework

    iLifeKit.framework

    iLifePageLayout.framework

    iLifeSQLAccess.framework

    iLifeSlideshow.framework

    iTunesLibrary.framework

     

     

    /Library/Input Methods:

     

     

    /Library/Internet Plug-Ins:

    AdobePDFViewer.plugin

    AdobePDFViewerNPAPI.plugin

    ContentUploaderPlugin.plugin

    Default Browser.plugin

    Disabled Plug-Ins

    DivXBrowserPlugin.plugin

    Flash Player.plugin

    Flip4Mac WMV Plugin.plugin

    Flip4Mac WMV Plugin.webplugin

    Google Earth Web Plug-in.plugin

    JavaAppletPlugin.plugin

    MacCouponPrinter3.plugin

    Quartz Composer.webplugin

    QuickTime Plugin.plugin

    RealPlayer Plugin.plugin

    SharePointBrowserPlugin.plugin

    SharePointWebKitPlugin.webplugin

    Silverlight.plugin

    flashplayer.xpt

    iPhotoPhotocast.plugin

    npUpload.xpt

    npdivx.xpt

    nsIQTScriptablePlugin.xpt

     

     

    /Library/Keyboard Layouts:

     

     

    /Library/LaunchAgents:

    com.adobe.AAM.Updater-1.0.plist

    com.adobe.CS5ServiceManager.plist

    com.oracle.java.Java-Updater.plist

     

     

    /Library/LaunchDaemons:

    com.adobe.SwitchBoard.plist

    com.adobe.fpsaud.plist

    com.microsoft.office.licensing.helper.plist

    com.oracle.java.Helper-Tool.plist

     

     

    /Library/PreferencePanes:

    DivX.prefPane

    Flash Player.prefPane

    Flip4Mac WMV.prefPane

    Growl.prefPane

    JavaControlPanel.prefPane

    Perian.prefPane

     

     

    /Library/PrivilegedHelperTools:

    com.microsoft.office.licensing.helper

     

     

    /Library/QuickLook:

    GBQLGenerator.qlgenerator

    iBooksAuthor.qlgenerator

    iWork.qlgenerator

     

     

    /Library/QuickTime:

    AppleIntermediateCodec.component

    AppleMPEG2Codec.component

     

     

    /Library/ScriptingAdditions:

    Adobe Unit Types.osax

     

     

    /Library/Spotlight:

    GBSpotlightImporter.mdimporter

    LogicPro.mdimporter

    Microsoft Entourage.mdimporter

    Microsoft Office.mdimporter

    iBooksAuthor.mdimporter

    iWeb.mdimporter

    iWork.mdimporter

     

     

    /Library/StartupItems:

    HP IO

     

     

    /etc/mach_init.d:

     

     

    /etc/mach_init_per_login_session.d:

     

     

    /etc/mach_init_per_user.d:

     

     

    Library/Address Book Plug-Ins:

     

     

    Library/Fonts:

    Arial

    Brush Script

    Times New Roman

    Verdana

    Wingdings

    Wingdings 2

    Wingdings 3

    bitwise.ttf

     

     

    Library/Internet Plug-Ins:

    Move_Media_Player.plugin

    fbplugin_1_0_3.plugin

     

     

    Library/Keyboard Layouts:

     

     

    Library/LaunchAgents:

    com.adobe.AAM.Updater-1.0.plist

    com.adobe.ARM.925793fb327152fd34795896fa1fb9ffa268b2a852256fe56609efa3.plist

    com.apple.FolderActions.enabled.plist

    com.apple.FolderActions.folders.plist

    com.apple.SafariBookmarksSyncer.plist

    com.google.keystone.agent.plist

     

     

    Library/Services:

    .localized

     

    Step 5:

    WDQuickView, HPEventHandler, HP Scheduler

     

    Note: The items in step 5 I found while looking into my login info under users & groups. I want to remove them, but it notes that I cannot change or remve because Users & Group preferences are locked. :/ I know the first item is from software that automatically installed from my external HD. I've tried to remove. The HP stuff--I no longer have any HP software installed.

     

    Thanks in advance for your time!

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