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SparkyTD
4y

Am I missing something with VMs? Every time I set one up (either linux guest on win10 host or the reverse), what I get is so slow and laggy that I can barely use it. I always give my VMs about 70% of my ram and at least 4 cpu cores, but still, it ends up being as slow as my grandma's 10 year old laptop.

On the other hand, I've seen people on youtube editing fucking videos in their VMs and the performance was so good that you couldn't even tell if its a vm or not.

This happens both on my desktop (8th gen i7, 16GB ram and ssd) and on my laptop (same cpu, 8GB ram, nvme).

Is virtualbox not good enough, are my devices not powerful enough or am I just too stupid?

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vm

virtualbox
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  • 0
    4y
    I am trying to move from win to linux, but I still need win in a VM for certain programs. But with this performance, it is unusable.
  • 3
    4y
    Virtualbox is garbage as far as performance goes. VMWare, Parallels, KVM, QEMU are all going to give you better everything. VirtualBox should go die in a fire.
  • 3
    4y
    Are you sure you have enabled virtualization in bios
  • 0
    4y
    @electrineer Yes. Would it even work without it enabled?
  • 1
    4y
    And you installed the essentials or whatever it is called?
  • 2
    4y
    @SparkyTD yes, but it would be very slow
  • 2
    4y
    For what it's worth, oracle's product is dogshit, compared to qemu/libvirt/native KVM.
  • 1
    4y
    @djsumdog @bahua I will give qemu a try.
  • 1
    4y
    @SparkyTD

    Cool. Until you get the hang of virsh syntax, I recommend using virt-manager. I also recommend setting your consoles to use VNC.
  • 1
    4y
    @Demolishun Yes, I have installed the thing.
  • 2
    4y
    Keep in mind also that some people use graphical hardware acceleration with their VMs, which will have a massive impact on performance.
  • 0
    4y
    Trying to install win10 on qemu, windows logo and the spinner thingy appear for about 5 seconds and then the VM crashes.. :/

    Sorry to be bothering you guys, this is probably not the right place to get tech support. Might open a thread on superuser so.
  • 1
    4y
    Oh nevermind I found the log. It ran out of memory. I give up.
  • 0
    4y
    @M1sf3t Ah this might be the problem. In the xml it says type=qxl, ram=65536, vram=65536 and vgamem=16384. Which one should I increase? I assume vgamem?
  • 0
    4y
    Make sure you share the gpu too.
    SSD is a must too.
  • 0
    4y
    @SparkyTD

    Am I reading that right? You're giving a Windows 10 VM 64 megabytes of memory?
  • 0
    4y
    @bahua No. These settings are all video-related. They are in the VideoQXL XML file of qemu.

    The system gets 4 gigs of ram.
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