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Problem with Window 7, High CPU usage by "Deferred procedure calls and interrupt service routine" RRS feed

  • Question

  • Hi!

    I m using window 7 ultimate. I generally get high cpu usage, some time after login.

    I think probably after i use internet. According to Resource monitor "Deferred procedure calls and interrupt service routine" takes average cpu of 40%.

    I can't even end the process and also not able to find the cause.

    I have tried to disable hardware devices like audio devices, nic card etc.

    But CPU usage persists to be near 100%.

    My computer is not affected by any virus. I'm sure about that.

    One more problem i get is with Desktop window manager.

    It also consumes 5-10% cpu. Refresh also takes some time(not much, but still slower).

     

    Kindly suggest some solutions.

    Thanks in advance.

    Tuesday, February 15, 2011 1:12 PM

Answers

  • Hi,

    make a xperf trace or Run LatencyMon [1] to diagnostic the DPC issues. Please upload the xperf etl file to your SkyDrive [2] and post a link here if LatencyMon doesn't help you to find the causing driver.

    I'll take a look at it.

    André

    [1] http://www.msfn.org/board/index.php?showtopic=140263
    [2] http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/4fc10639-02db-4665-993a-08d865088d65
    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Proposed as answer by Andre.Ziegler Thursday, February 17, 2011 12:52 PM
    • Marked as answer by Miya Yao Monday, February 21, 2011 9:04 AM
    Tuesday, February 15, 2011 4:38 PM
  • Hi Nitin_sharma,

     

    In addition to Andre.Ziegler’s reply, did you install any software recently? Remove it to check the issue.

    Also try a Clean Boot  to troubleshoot the problem.

     

    Regards,

    Miya


    This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    • Marked as answer by Miya Yao Monday, February 21, 2011 9:04 AM
    Thursday, February 17, 2011 6:33 AM

All replies

  • Hi,

    make a xperf trace or Run LatencyMon [1] to diagnostic the DPC issues. Please upload the xperf etl file to your SkyDrive [2] and post a link here if LatencyMon doesn't help you to find the causing driver.

    I'll take a look at it.

    André

    [1] http://www.msfn.org/board/index.php?showtopic=140263
    [2] http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/4fc10639-02db-4665-993a-08d865088d65
    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Proposed as answer by Andre.Ziegler Thursday, February 17, 2011 12:52 PM
    • Marked as answer by Miya Yao Monday, February 21, 2011 9:04 AM
    Tuesday, February 15, 2011 4:38 PM
  • Hi Nitin_sharma,

     

    In addition to Andre.Ziegler’s reply, did you install any software recently? Remove it to check the issue.

    Also try a Clean Boot  to troubleshoot the problem.

     

    Regards,

    Miya


    This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    • Marked as answer by Miya Yao Monday, February 21, 2011 9:04 AM
    Thursday, February 17, 2011 6:33 AM