2.5 Mins of Prefetching at Startup

Discussion in 'Windows Vista Performance' started by Gideon_CC, Jun 16, 2007.

  1. Gideon_CC

    Gideon_CC Guest

    Does anyone notice that after statup is complete, you get a 2 and a half
    minute of Prefetching going on. There is a 2 and a half minute of constant
    hard disk activity during this time and from the Reliability and Performance
    Monitor, it shows hundreds of:

    svchost.exe (LocalSystemNetworkRestricted)
    svchost.exe (secsvcs)

    The top one is related to Superfetch.
    The second one is related to Windows Defender.

    Does anyone else get this?
    I did outline something similar on another topic but I now have a clearer
    topic.
     
    Gideon_CC, Jun 16, 2007
    #1
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  2. Does anyone notice that after statup is complete, you get a 2 and a half
    Yes, I haven't timed mine, but it sounds about right. However, why are you
    concerned? According to the white papers I've read this activity has both a
    low CPU priority and the lowest I/O priority, so there's no way it should be
    affecting your use of the computer.

    Steve
     
    Steve Thackery, Jun 16, 2007
    #2
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  3. Gideon_CC

    Gideon_CC Guest

    By the way, here are some screenshots:

    http://tezmania.com/mypc/start.jpg
    http://tezmania.com/mypc/event.jpg

    The first one is a screenshot in the Reliability and Performance Monitor
    during the Prefetching. The second one I just took now of the Event Viewer
    because I wondered why there are lots of Boot and Shutdown Performance
    Monitoring errors. Not sure if this related or if this is normal or something
    I can fix etc.
     
    Gideon_CC, Jun 16, 2007
    #3
  4. Gideon_CC

    Gideon_CC Guest

    It doesn't really affect the use of the computer.

    The first 2-3 mins, of using it may be slightly slower than usual but not
    overly.
    I just don't know if the hard disk should be at high usage and Superfetch
    spending 2-3 mins at startup every time. Didn't notice this on my Laptop that
    had Vista although I took it back for another reason. I have had this
    computer for 3 weeks and have noticed this usage for nearly 2 but that
    doesn't mean it just happened, it may have been there all the time but I
    can't remember.
     
    Gideon_CC, Jun 16, 2007
    #4
  5. Gideon_CC

    Rock Guest

    I'm not sure why you are posting this again. Yes it's normal. What are you
    trying to find out?
     
    Rock, Jun 16, 2007
    #5
  6. Gideon_CC

    Gideon_CC Guest

    I want to know if everyone gets this and also the new information about
    Event Viewer errors from my second screenshot.
     
    Gideon_CC, Jun 16, 2007
    #6
  7. Gideon_CC

    Rock Guest

    Yes prefetch running at startup is normal. I don't know about the errors
    you are getting, sorry.
     
    Rock, Jun 16, 2007
    #7
  8. Gideon_CC

    Gideon_CC Guest

    Can you check if you get those Event Viewer errors?
     
    Gideon_CC, Jun 16, 2007
    #8
  9. This prefetching activity is perfectly normal.

    --
    John Barnett MVP
    Associate Expert
    Windows - Shell/User

    Web: http://xphelpandsupport.mvps.org
    Web: http://vistasupport.mvps.org

    The information in this mail/post is supplied "as is". No warranty of any
    kind, either expressed or implied, is made in relation to the accuracy,
    reliability or content of this mail/post. The Author shall not be liable for
    any direct, indirect, incidental or consequential damages arising out of the
    use of, or inability to use, information or opinions expressed in this
    mail/post..
     
    John Barnett MVP, Jun 16, 2007
    #9
  10. Gideon_CC

    Gideon_CC Guest

    How about the Event Viewer errors?
    The Boot and Shutdown errors displayed there?
    Does everyone else get these in the Event Viewer?
     
    Gideon_CC, Jun 16, 2007
    #10
  11. Gideon_CC

    BillD Guest

    this screenshots is useless because you haven't expanded the file column to
    see the full names
     
    BillD, Jun 16, 2007
    #11
  12. Gideon_CC

    BillD Guest

    it's NOT the superfetch, but it's the system restore: a new system restore
    is created every day at the first boot (These files are created at low IO
    priority)
     
    BillD, Jun 16, 2007
    #12
  13. Gideon_CC

    Gideon_CC Guest

    A few days ago, I disabled Superfetch and Defender and the activity stopped
    at startup. I renabled it after.
     
    Gideon_CC, Jun 16, 2007
    #13
  14. BillD, it's not system restore. System restore is disabled on my machine and
    always has been but there is still a 2 to 3 minute disk activity after
    reaching the desktop.

    I agree system restore does create a restore point daily but it is set for a
    specific time of day (I'm not sure of the exact timing). If your pc is not
    in use at that time then system restore will wait until the next day. (or
    next time period)


    --
    John Barnett MVP
    Associate Expert
    Windows - Shell/User

    Web: http://xphelpandsupport.mvps.org
    Web: http://vistasupport.mvps.org

    The information in this mail/post is supplied "as is". No warranty of any
    kind, either expressed or implied, is made in relation to the accuracy,
    reliability or content of this mail/post. The Author shall not be liable for
    any direct, indirect, incidental or consequential damages arising out of the
    use of, or inability to use, information or opinions expressed in this
    mail/post..
     
    John Barnett MVP, Jun 16, 2007
    #14
  15. In the reliability and performance monitor (control panel>admin tools>
    reliability and performance) on the Disk tab I am seeing only one of your
    options and that is the svchost.exe (LocalSystemNetworkRestricted) I'm
    seeing nothing else.

    --
    John Barnett MVP
    Associate Expert
    Windows - Shell/User

    Web: http://xphelpandsupport.mvps.org
    Web: http://vistasupport.mvps.org

    The information in this mail/post is supplied "as is". No warranty of any
    kind, either expressed or implied, is made in relation to the accuracy,
    reliability or content of this mail/post. The Author shall not be liable for
    any direct, indirect, incidental or consequential damages arising out of the
    use of, or inability to use, information or opinions expressed in this
    mail/post..
     
    John Barnett MVP, Jun 16, 2007
    #15
  16. Gideon_CC

    Charlie Tame Guest


    Can you find more detail from the actual event log entries. I see very
    few errors or warnings on this machine. Seems odd that the shutdown
    performance is a problem. It is possible that could be related to
    motherboard drivers not being correct or maybe some other piece of
    hardware, have seen that on one example but it may well be nothing to do
    with anything in your case :) Check MB maker's website in case it
    somehow has odd driver version.
     
    Charlie Tame, Jun 16, 2007
    #16
  17. Gideon_CC

    Gideon_CC Guest

    I know it isn't System Restore as I know when it happens.
    I see the process VSSVC.exe or something like that when it happens.
    At startup, this isn't running but Superfetch is.

    svchost.exe (LocalSystemNetworkRestricted) it the main one, the other one is
    related to Windows Defender. If you don't have defender or you have disabled
    Real-Time Protection, you probably wont get this service but the
    LocalSystemNetworkRestricted is to do with Superfetch.

    I still haven't got any reponce about the Events Montior.

    Go to Control Panel, System & Maintenance, Performance Information and Tools.
    Then click Advanced Tools and then click View Performance Details in Event
    Log.

    There is what I showed on http://tezmania.com/mypc/event.jpg
    Do you lot have the same stuff there as on my screenshot?
     
    Gideon_CC, Jun 16, 2007
    #17
  18. Gideon_CC

    Gideon_CC Guest

    It does seem related to 23rd of May rather than every day so it could just be
    something small that happened but not sure what it was :S
     
    Gideon_CC, Jun 16, 2007
    #18
  19. Gideon_CC

    Rock Guest

    I haven't seen either of those svchost PIDs on this system, that I can
    recollect, and of the many running now none with those PIDs. The PIDs for
    svchost.exe running now are: 1084, 1140, 1180, 1300, 1344, 1380, 1500,
    1704, 2040, 2092, 2112, 2152. I'm not sure if PIDs for these services
    change from system to system or boot to boot.

    As to the errors, it's unclear what errors they are from the image you
    supplied, other than Event ID 100. I do get those from time to time for
    long boot times, usually related to when an update is installed that
    requires a reboot. The initial shutdown, and subsequent start up take much
    longer and generate this error for a longer startup.
     
    Rock, Jun 17, 2007
    #19
  20. Gideon_CC

    Rock Guest

    Additional, none of the Event ID 100 events on this system are blank in the
    General tab.
     
    Rock, Jun 17, 2007
    #20
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