Windows 10: Server CPU usage doesnt go above 50% per process

Discus and support Server CPU usage doesnt go above 50% per process in Windows 10 BSOD Crashes and Debugging to solve the problem; Hello, Intel MKL testing shows a half CPU usage. Always 50% per 1 process max at this machine. So, if I have two parallel process then I will have... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by Al_152, Oct 13, 2019.

  1. AL_152
    Al_152 Win User

    Server CPU usage doesnt go above 50% per process


    Hello,


    Intel MKL testing shows a half CPU usage. Always 50% per 1 process max at this machine.


    So, if I have two parallel process then I will have 100% max CPU usage. But for one - 50% max only.

    Taskmgr (windows 7) shows ~100% usage for half threads and ~0% for others one by one.

    Other applications are give the same result.


    Ive tried:

    1. open CPU Power options in Control panel. It has 100% limit value.

    2. turn up a process priority to Real time.

    3. made sure that executable process has support a hyperthreading4. other servers based on 2*CPU (Xeon X5675 with Windows 7 and Xeon E5620 with Windows 7) havent such problem!


    Server configuration

    CPU 2x OctalCore Intel Xeon E5-2667 v4, 3500 MHz (35 x 100)
    MB Supermicro X10DRG-Q, chipset Intel Wellsburg C612, Intel Broadwell-EP, AMI BIOS
    Memory Samsung M393A4K40CB1-CRC 32 ГБ DDR4-2400
    OS Windows 2016 Server

    (with Windows 7 Pro I have the same result)


    All hardware drivers are installed.


    CPU usage shot is below


    CPU1 / Core 1 / SMT 1 100%
    CPU1 / Core 1 / SMT 2 0%
    CPU1 / Core 2 / SMT 1 100%
    CPU1 / Core 2 / SMT 2 0%
    CPU1 / Core 3 / SMT 1 100%
    CPU1 / Core 3 / SMT 2 0%
    CPU1 / Core 4 / SMT 1 100%
    CPU1 / Core 4 / SMT 2 100%
    CPU1 / Core 5 / SMT 1 100%
    CPU1 / Core 5 / SMT 2 0%
    CPU1 / Core 6 / SMT 1 100%
    CPU1 / Core 6 / SMT 2 0%
    CPU1 / Core 7 / SMT 1 100%
    CPU1 / Core 7 / SMT 2 0%
    CPU1 / Core 8 / SMT 1 100%
    CPU1 / Core 8 / SMT 2 0%
    CPU2 / Core 1 / SMT 1 100%
    CPU2 / Core 1 / SMT 2 0%
    CPU2 / Core 2 / SMT 1 100%
    CPU2 / Core 2 / SMT 2 0%
    CPU2 / Core 3 / SMT 1 100%
    CPU2 / Core 3 / SMT 2 0%
    CPU2 / Core 4 / SMT 1 100%
    CPU2 / Core 4 / SMT 2 0%
    CPU2 / Core 5 / SMT 1 100%
    CPU2 / Core 5 / SMT 2 0%
    CPU2 / Core 6 / SMT 1 100%
    CPU2 / Core 6 / SMT 2 0%
    CPU2 / Core 7 / SMT 1 100%
    CPU2 / Core 7 / SMT 2 0%
    CPU2 / Core 8 / SMT 1 100%
    CPU2 / Core 8 / SMT 2 0%


    Kind Regards,

    Al

    :)
     
    Al_152, Oct 13, 2019
    #1
  2. ARMYCYRUS
    armycyrus Win User

    AppleMobileDeviceService.exe consistently takes 50% of CPU usage.

    Original title: An App. called AppleMobileDeviceService.exe consistently takes 50% of CPU usage. I am not using iTunes. Apple says iI should ask Microsoft. I use AX oper. sys.

    An App. called AppleMobileDeviceService.exe consistently takes 50% of CPU usage. I am not logged on to iTunes, nor is my iPod connected to my PC when this .exe runs with 50% usage. Apple suggested I contact Microsoft. I use AX oper. sys. Apple suggested
    contacting Microsoft.
     
    armycyrus, Oct 13, 2019
    #2
  3. BARENCE
    barence Win User
    Problem: Explorer 50% cpu usage


    Every day, at intermittent times unrelated to anything I do [it happens when I'm doing nothing], Explorer starts running with each core at about 50% cpu usage, and does not stop. Temperatures and fan speeds rise, fans become very noisy.

    Speedfan indicates core temps rise to ~ 70 degrees C, "Temp1" rises to 75 - 80 degrees, fan 1 speed ~ 4000rpm,
    fan 2 speed ~ 2500 rpm.

    I have just installed Windows 10 so it seems it could not be caused by a virus/malware.

    In windows 7 forums some users found the problem was caused by a corrupted file:

    Explorer.exe 50% CPU usage - Windows 7 Help Forums

    Since my problem is intermittent is it unlikely to be caused by a corrupted file?

    I can't use the solution suggested in the W7 forums because when I kill explorer I lose my desktop.

    I ran diskcheck on both my hard drives and it reported no errors found.

    Any suggestions would be welcomed.

    Can someone please explain why a corrupted file would cause explorer to run at 50% cpu usage?
     
    barence, Oct 13, 2019
    #3
  4. HENDRYHU
    HendryHu Win User

    Server CPU usage doesnt go above 50% per process

    High CPU Usage Null Process

    There was high CPU usage even if there is nothing going on and when I checked Task Manager, a "null" process with the blue cog icon was using 50%~90% of my CPU. When I try to end the process, it prompted me with the "If you end this process, Windows will
    shut down or stop working" warning. I did and Windows rebooted. The problem seemed to be solved but few hours later it came back.

    I right clicked the process and went to details, it just showed be svhost.exe, but no description. The file location is completely normal. There are other service hosts that are running normally. I checked all the forums and found no help.

    Also something to note: Sometimes, it just displays high CPU usage and the fans doesn't even turn on.
     
    HendryHu, Oct 13, 2019
    #4
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Server CPU usage doesnt go above 50% per process

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