Memory allocation for VM

Discussion in 'Windows Guest OS Discussion' started by AlekseyM2, Jul 14, 2019.

  1. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    I allocated 8Gb for a Windows 10 Pro guest OS on Mac. Why do I see that it takes 13 Gb from Mac OS in Activity Monitor? I understand there should be an overhead, but why does it take from Mac OS almost twice the memory allocated for Windows?
     
  2. Maria@Parallels

    Maria@Parallels Parallels Team

    Messages:
    3,835
    @AlekseyM2, could you share the screenshot of Activity monitor with us please?
     
  3. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    Sure.
    Activity Monitor: Screen Shot 2019-07-15 at 1.55.54 PM.png
    VM Settings:
    Screen Shot 2019-07-15 at 1.56.09 PM.png
     
  4. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    There is definitely a memory leak somewhere:
    Screen Shot 2019-07-16 at 9.14.43 PM.png
     
  5. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    I noticed that version 15 has been released. Did you fix the memory leak issue there?
     
  6. Maria@Parallels

    Maria@Parallels Parallels Team

    Messages:
    3,835
    I've tried to reproduce this issue on my environments and everything works ok.
    You can test it with the 14-days trial period and please report us if the issue reoccurs.
     
  7. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    I'll see if this may depend on the hypervisor settings.
     
  8. AlekseyM2

    AlekseyM2 Bit Poster

    Messages:
    47
    It seems that this issue appears only when using Apple hypervisor. With Parallels hypervisor however, CPU hits more than 200% all the time and fans blow at full speed.
     
  9. KennyE1

    KennyE1 Bit Poster

    Messages:
    4
    you may try reduce the processor to 2, see if it is help..
     
  10. DanielK21

    DanielK21

    Messages:
    1
    I have started to notice this issue after upgrading to Parallels 15. While my VM is set to use 6GB of memory, in Activity Monitor I often see Parallels 11 GB of memory or more -- this is having an adverse impact on the performance of my MacBook. What's up?
     

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