Windows 10: System and Compressed Memory uses 40% CPU after waking up from sleep

Discus and support System and Compressed Memory uses 40% CPU after waking up from sleep in Windows 10 Performance & Maintenance to solve the problem; The computer seems to work pretty much fine after every startup, but problems starts emerging after waking up from sleep/hibernation. After waking up... Discussion in 'Windows 10 Performance & Maintenance' started by danny7899, Aug 18, 2017.

  1. danny7899 Win User

    System and Compressed Memory uses 40% CPU after waking up from sleep


    The computer seems to work pretty much fine after every startup, but problems starts emerging after waking up from sleep/hibernation. After waking up from sleep, I notice that the computer starts heating up and fans are throttling.

    The 'System and Compressed Memory' process reaches up to 35% as seen on task manager, using Process Explorer, I can see that the thread 'ntoskrnl.exe!CcCopyWriteWontFlush+0xb50' seems to be causing the issue.

    Some peripherals also sometimes stops working after waking up from sleep, such as fingerprint sensor, WiFi, and screen brightness not being able to be changed. The only way to but things back is by restarting the computer, which is rather inconvenient. I have attached some screenshots from task manager and process explorer before and after resuming from sleep.

    I have tried these troubleshooting tips but none brings this problem to an end:
    • Update all device drivers
    • Scan for hardware changes in Device Manager
    • Disabling pagefile (and re-enabling it)
    • Disable fastboot (and re-enabling it)
    • Disable memory diagnostics (and re-enabling it)
    • Re-installing graphics card driver

    It is hard to sleep the computer after the first sleep wake up, it could take up to 5 mins. Shutting it down is also an issue, it could take minutes, or even causes a BSOD with error code 'DRIVER_POWER_STATE_FAILURE'. (all these anomalies occur after waking up from the first sleep, and I am on a laptop)

    I wonder if there is a solution to this problem. Thanks!

    Before sleep:

    System and Compressed Memory uses 40% CPU after waking up from sleep [​IMG]

    System and Compressed Memory uses 40% CPU after waking up from sleep [​IMG]


    After waking up from sleep:

    System and Compressed Memory uses 40% CPU after waking up from sleep [​IMG]

    System and Compressed Memory uses 40% CPU after waking up from sleep [​IMG]




    :)
     
    danny7899, Aug 18, 2017
    #1
  2. josejoa Win User

    High Memory usage by ntoskrnl.exe System after upgrading to windows 10 home

    And I noted that with superfetch active CPU of System and Memory compressed goes up from 0 to 0,5%, no more, thank you. Though with more memory use goes up from 0,5% of CPU (now with 35 40 Mb of memory goes from 1,7to 4% of CPU), i think i will disable
    superfetch.
     
    josejoa, Aug 18, 2017
    #2
  3. System and Compressed Memory uses up to 35% CPU after waking up from sleep on WIndows 10

    The computer seems to work pretty much fine after every startup, but problems starts emerging after waking up from sleep/hibernation. After waking up from sleep, I notice that the computer starts heating up and fans are throttling.
    The 'System and Compressed Memory' process reaches up to 35% as seen on task manager, using Process Explorer, I can see that the thread 'ntoskrnl.exe!CcCopyWriteWontFlush+0xb50' seems to be causing the issue. Some peripherals also sometimes stops working after
    waking up from sleep, such as fingerprint sensor, WiFi, and screen brightness not being able to be changed. The only way to but things back is by restarting the computer, which is rather inconvenient. I wonder if there is a solution to this problem. Thanks!
     
    DannyAugust, Aug 18, 2017
    #3
  4. System and Compressed Memory uses 40% CPU after waking up from sleep

    You should upgrade to CU, that might fix it. Other than that, try disabling superfetch/prefetching.

    Code: sc config SysMain start= disabled net stop SysMain /y reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters" /v "EnablePrefetcher" /t REG_DWORD /d "0" /f reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters" /v "EnableSuperfetch" /t REG_DWORD /d "0" /f reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters" /v "SfTracingState" /t REG_DWORD /d "0" /f[/quote]
     
    TairikuOkami, Aug 18, 2017
    #4
  5. danny7899 Win User
    Hi TairikuOkami, I've tried disabling superfetch and prefetch but that gives no change. I will update as soon as I've upgrade to CU.
    Thank you for your time.
     
    danny7899, Apr 4, 2018
    #5
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System and Compressed Memory uses 40% CPU after waking up from sleep

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