Any others with 27" iMac 10.9.4 memory issues... my experience.

Hi, I just thought I would provide my experience here to both see if others have seen and dealt with the issue - and to alert others that this may be something worth considering in upgrading from Mac OSX 10.9.3
My 27" iMac 11,1 update to 10.9.4 was a disaster.  From the time I restarted my Mac it bogged down in performance and my applications were being paused (as seen in the Force Quit window).  The mermory task_kernel was grabbing over 5 GB of my 8 and not letting go.  At idle with no applications running all was fine with memory, but the moment I launched any of my standard browser (Firefox or Safari) or Windows apps (Outlook, PPt, Word, etc) or nearly anything else the Mac ground to a halt and applications were being Paused.  Quitting applications did not release memory from task_kernel.
I finally re-installed Maverics from scratch and nothing changed.  I tried Disk permissions and cleaning out as much as I dared and re-updating things like Flash but nothing made a difference.
For 3 days I searched all over the net for answers and could only find some reference to changing files that are energy-management related.  Apparently this was an issue for many portable users in the upgrade.  I tried their work around but this did not work for me either.
Being without a working Mac was getting to be too much so I finally decided to go backwards and used Time Machine (thank you, thank you, thank you Time Machine!) to go back to my last backup with 10.9.3.  I held my breath when it started and with Activity Monitor running all started fine... and stayed fine!  And has for days now.
By the way, I have an identical iMac with same software that was not upgraded that has stayed fine as well with every other upgrade but 10.9.4.
I do not know why this problem happened but clearly 10.9.4 is either not properly tuned for my Mac or it is creating a not so obvious conflict that is beyond my ability to manage.  I could spend days trying to figure this out - or - just leave well enough alone and hope that Apple fixes the issue or let's us know what is going on that we should fix.
For now, it's goodbye 10.9.4 and will be looking forward to but apprehensively at 10.9.5

Sorry, I had it ready didn't post.  Even have the log file as it was happening.  I took a video of Activity Monitor during it too.
EtreCheck version: 1.9.13 (49)
Report generated 15 August 2014 1:41:52 pm AEST
Hardware Information: ?
    iMac (27-inch, Late 2009) (Verified)
    iMac - model: iMac11,1
    1 2.8 GHz Intel Core i7 CPU: 4 cores
    8 GB RAM
Video Information: ?
    ATI Radeon HD 4850 - VRAM: 512 MB
        iMac 1920 x 1080
        VGA Display 1024 x 768 @ 60 Hz
System Software: ?
    OS X 10.9.2 (13C1021) - Uptime: 4 days 20:42:36
Disk Information: ?
    ST31000528ASQ disk0 : (1 TB)
    S.M.A.R.T. Status: Verified
        EFI (disk0s1) <not mounted>: 209.7 MB
        Macintosh HD (disk0s2) / [Startup]: 999.35 GB (717.56 GB free)
        Recovery HD (disk0s3) <not mounted>: 650 MB
    OPTIARC DVD RW AD-5680H 
USB Information: ?
    Western Digital  My Book          1 TB
        S.M.A.R.T. Status: Verified
        disk4s1 (disk4s1) <not mounted>: 32 KB
        MUSIC AND PHOTO BACKUP (disk4s3) /Volumes/MUSIC AND PHOTO BACKUP: 1 TB (479.91 GB free)
    Iomega Iomega Select HDD 250.06 GB
        S.M.A.R.T. Status: Verified
        EFI (disk5s1) <not mounted>: 209.7 MB
        Frogster 1 250 GB Portable (disk5s2) /Volumes/Frogster 1 250 GB Portable: 249.72 GB (246.19 GB free)
    Seagate  Portable         500.11 GB
        S.M.A.R.T. Status: Verified
        EFI (disk3s1) <not mounted>: 209.7 MB
        500GB Portable (disk3s2) /Volumes/500GB Portable: 499.76 GB (173.28 GB free)
    Western Digital My Book 1140 2 TB
        S.M.A.R.T. Status: Verified
        EFI (disk2s1) <not mounted>: 209.7 MB
        disk2s2 (disk2s2) <not mounted>: 2 TB
        Boot OS X (disk2s3) <not mounted>: 134.2 MB
    Apple Computer, Inc. IR Receiver
    Apple Inc. Built-in iSight
    General  UDisk            1.94 GB
        S.M.A.R.T. Status: Verified
    Apple, Inc. Keyboard Hub
        Apple, Inc Apple Keyboard
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Internal Memory Card Reader
Gatekeeper: ?
    Anywhere
Kernel Extensions: ?
    [loaded]    com.Cycling74.driver.Soundflower (1.5.2) Support
    [loaded]    com.Perfect.Driver.SystemAudioRecorder (1.0.0 - SDK 10.9) Support
    [not loaded]    com.elgato.driver.DontMatchAfaTech (1.1) Support
    [not loaded]    com.elgato.driver.DontMatchCinergy450 (1.1) Support
    [not loaded]    com.elgato.driver.DontMatchCinergyXS (1.1) Support
    [not loaded]    com.elgato.driver.DontMatchEmpia (1.1) Support
    [loaded]    com.logmein.driver.LogMeInSoundDriver (1.0.3 - SDK 10.5) Support
    [loaded]    com.movavi.driver.SoundGrabber (1.6.5 - SDK 10.6) Support
    [not loaded]    com.pctools.iantivirus.kfs (1.0.1) Support
    [loaded]    com.seagate.driver.PowSecDriverCore (5.2.6 - SDK 10.4) Support
    [not loaded]    com.seagate.driver.PowSecLeafDriver_10_4 (5.2.6 - SDK 10.4) Support
    [loaded]    com.seagate.driver.PowSecLeafDriver_10_5 (5.2.6 - SDK 10.5) Support
    [not loaded]    com.seagate.driver.SeagateDriveIcons (5.2.6 - SDK 10.4) Support
    [not loaded]    com.wdc.driver.1394HP (1.0.11 - SDK 10.4) Support
    [not loaded]    com.wdc.driver.1394_64HP (1.0.1 - SDK 10.6) Support
    [not loaded]    com.wdc.driver.IOFireWireWDHID (1.1.2) Support
    [loaded]    com.wdc.driver.USB-64HP (1.0.1) Support
    [not loaded]    com.wdc.driver.USBHP (1.0.13) Support
    [not loaded]    net.Thomson.iokit.USBLAN_usbpart (1.6.0) Support
Startup Items: ?
    WDBMService: Path: /Library/StartupItems/WDBMService
Problem System Launch Daemons: ?
    [failed]    com.apple.wdhelper.plist
    [running]    com.seagate.TBDecorator.plist Support
Launch Daemons: ?
    [loaded]    com.adobe.fpsaud.plist Support
    [running]    com.cleverfiles.cfbackd.plist Support
    [not loaded]    com.google.keystone.daemon.plist Support
    [not loaded]    com.logmein.logmeinblanker.plist Support
    [not loaded]    com.logmein.logmeinserver.plist Support
    [loaded]    com.logmein.raupdate.plist Support
    [loaded]    com.microsoft.office.licensing.helper.plist Support
    [loaded]    com.oracle.java.Helper-Tool.plist Support
    [loaded]    com.oracle.java.JavaUpdateHelper.plist Support
    [not loaded]    com.portents.changerd.plist Support
    [not loaded]    com.portents.changermediaid.plist Support
    [loaded]    com.timesoftware.timemachineeditor.helper.plist Support
    [loaded]    com.vmware.launchd.vmware.plist Support
    [loaded]    fi.polar.libpolar.plist Support
    [running]    fi.polar.polard.plist Support
Launch Agents: ?
    [running]    com.brother.LOGINserver.plist Support
    [not loaded]    com.google.keystone.agent.plist Support
    [failed]    com.logmein.LMILaunchAgentFixer.plist Support
    [not loaded]    com.logmein.logmeingui.plist Support
    [not loaded]    com.logmein.logmeinguiagent.plist Support
    [not loaded]    com.logmein.logmeinguiagentatlogin.plist Support
    [loaded]    com.oracle.java.Java-Updater.plist Support
User Launch Agents: ?
    [not loaded]    com.adobe.ARM.[...].plist Support
    [not loaded]    com.leadertech.PowerRegister.SEA1.6cd89bc1180f7c681347ee4dd84555e2.plist Support
    [not loaded]    com.macpaw.CleanMyMac.helperTool.plist Support
    [not loaded]    com.macpaw.CleanMyMac.trashSizeWatcher.plist Support
    [not loaded]    com.macpaw.CleanMyMac.volumeWatcher.plist Support
    [not loaded]    com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist Support
    [not loaded]    com.macpaw.CleanMyMac2Helper.scheduledScan.plist Support
    [not loaded]    com.macpaw.CleanMyMac2Helper.trashWatcher.plist Support
    [not loaded]    com.microsoft.LaunchAgent.SyncServicesAgent.plist Support
    [not loaded]    com.seagate.dashboard.plist Support
User Login Items: ?
    SmartDaemon
    GrowlHelperApp
    Microsoft Outlook
    WebSync
    Microsoft Database Daemon
    Radioshift Helper (2427993400)
    AdobeResourceSynchronizer
    Dropbox
    Google Drive
    Firefox
    Skype
    iAntiVirus
    WDQuickView
Internet Plug-ins: ?
    AdobePDFViewerNPAPI: Version: 10.1.10 Support
    Flash Player: Version: 14.0.0.145 - SDK 10.6 Outdated! Update
    AdobePDFViewer: Version: 10.1.10 Support
    LogMeInSafari32: Version: 1.0.730 Support
    iPhotoPhotocast: Version: 7.0
    RealPlayer Plugin: Version: Unknown
    DirectorShockwave: Version: 11.0.0r430 Support
    Loki: Version: 3.0 Support
    LogMeInSafari64: Version: 1.0.730 Support
    FlashPlayer-10.6: Version: 14.0.0.145 - SDK 10.6 Support
    QuickTime Plugin: Version: 7.7.3
    AmazonMP3DownloaderPlugin: Version: Unknown
    DivXBrowserPlugin: Version: 1.4 Support
    Silverlight: Version: 5.1.20913.0 - SDK 10.6 Support
    LogMeIn: Version: 1.0.730 Support
    Google Earth Web Plug-in: Version: 5.1 Support
    Default Browser: Version: 537 - SDK 10.9
    Flip4Mac WMV Plugin: Version: 2.3.2.6 Support
    SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 Support
    JavaAppletPlugin: Version: Java 7 Update 65 Check version
    OfficeLiveBrowserPlugin: Version: 12.3.3 Support
Audio Plug-ins: ?
    BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
    AirPlay: Version: 2.0 - SDK 10.9
    AppleAVBAudio: Version: 203.2 - SDK 10.9
    iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
    Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
User Internet Plug-ins ?
    bjnplugin_2.6.255.8: Version: bjnplugin 2.6.255.8 - SDK 10.8 Support
    bjninstallplugin_2.6.255.8: Version: bjninstallplugin 2.6.255.8 - SDK 10.8 Support
    BrowserPlus_2.9.8: Version: 2.9.8 Support
    fbplugin_1_0_1: Version: (null) Support
    Picasa: Version: 1.0 Support
    RealPlayer Plugin: Version: (null) Support
3rd Party Preference Panes: ?
    BrowserPlus  Support
    DivX  Support
    Flash Player  Support
    Flip4Mac WMV  Support
    Growl  Support
    Iomega Active Delivery  Support
    Java  Support
    MacFUSE  Support
    Seagate Dashboard for Mac OSX  Support
    WDQuickView  Support
Time Machine: ?
    Skip System Files: NO
    Mobile backups: OFF
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 930.71 GB Disk used: 262.43 GB
    Destinations:
        Frog Pond Master Backup [Local] (Last used)
        Total size: 2 
        Total number of backups: 25
        Oldest backup: 2013-11-25 14:20:27 +0000
        Last backup: 2014-08-15 03:10:33 +0000
        Size of backup disk: Adequate
            Backup size 2  > (Disk used 262.43 GB X 3)
    Time Machine details may not be accurate.
    All volumes being backed up may not be listed.
Top Processes by CPU: ?
        69%    firefox
        48%    Finder
         6%    plugin-container
         5%    WindowServer
         4%    Microsoft Outlook
Top Processes by Memory: ?
    2.78 GB    firefox
    213 MB    plugin-container
    164 MB    Finder
    147 MB    SafariDAVClient
    90 MB    Microsoft Outlook
Virtual Memory Information: ?
    171 MB    Free RAM
    2.23 GB    Active RAM
    2.08 GB    Inactive RAM
    1.21 GB    Wired RAM
    64.70 GB    Page-ins
    4.67 GB    Page-outs

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    Followed the directions on this page and it worked!
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    Part One - Turn on SSH (in the admin panel)
    [1] Go to to http://mybookworld.local
    [2] login: username will be admin, password will be whatever you have setup. If you can't remember it should be in your Mac OS X keychain (Utilities > Keychain Access, search for "mybookworld"). If you have not changed if from the default the password will be admin as well.
    [3] Switch to advanced mode.
    [4] From the System tab, pick Advanced.
    [5] Enable SSH Access, and click submit.
    [6] Click on the network tab and then the LAN button
    [7] Make a note of the IP address
    Small, maybe obvious, but nevertheless important point: For the install to work, your NAS needs to be connected to a router with internet access.
    Part Two - Install netatalk2.2
    [8] Open Terminal.app (Utilities > Terminal)
    [9] Enter the following command (substitute in 127.0.0.1 for the actual IP address you noted down in step 7), then hit return:
    Code: 
    ssh [email protected]
    [10] When prompted, enter the ssh password (will be welc0me).
    [11] You are now going to download the installer. Enter the following command, then hit return:
    Code: 
    wget http://mybookworld.wikidot.com/local--files/netatalk2-2-on-whitelight/install_netatalk.sh -O install_netatalk.sh
    [12] Once completed, you will need to run the installer. Type:
    Code: 
    sh install_netatalk.sh
    [13] You will be asked a number of question during install, answer yes to all. When asked about the "DHX2 login process", I opted to install the modified version, so I can confirm it works.
    [14] Once the box has restarted, you should be able to connect to your afp shares and continue to use Time Machine.

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