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


  1. danny7899
    Posts : 2
    Windows 10
       New #1

    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-hack_before.pngSystem and Compressed Memory uses 40% CPU after waking up from sleep-task_before.png

    After waking up from sleep:
    System and Compressed Memory uses 40% CPU after waking up from sleep-hack_after.pngSystem and Compressed Memory uses 40% CPU after waking up from sleep-task_after.png
      My Computer
    Quote Quote

  3. TairikuOkami
    Posts : 5,492
    Windows 11 Home
       New #2

    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
      My Computer
    Quote Quote

  4. danny7899
    Posts : 2
    Windows 10
    Thread Starter
       New #3

    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.
      My Computer
    Quote Quote

 

  Related Discussions
System and compressed memory
in Drivers and Hardware

System and compressed memory is not showing in task manager, is it because I have enough RAM? Thanks.
I noticed the C P U fan spinning @ 5950 rpm and decided to consult the task manager. The System & Compressed Memory is using 20% of the cpu. Why ? Thank you.
Hi! So my friend has a PC with Windows 10 (installed from USB-Stick with the WindowsMediaCreationTool). It ran fine for about two weeks, which is when the problem started: The "System and compressed memory" and "System interrupts" processes taking...
Hello there, I am here today as I have had a problem with System and Compressed Memory since I installed Windows 10 back in December of 2015. Now keep in mind, this isn't a normal issue, as I have yet to actually find anything in regards to what...
Why it's taking 380MB of my memory ? Does it important or there is a way to disable it ?
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 08:59.
Find Us




Windows 10 Forums