How fast is a macOS VM, and how small could it be?

(eclecticlight.co)

29 points | by moosia 1 hour ago

2 comments

nottorp 36 minutes ago
> Starting with 4 virtual cores and 8 GB vRAM, where the VM ran perfectly briskly with around 5 GB of memory used
But... if you start applications inside your VM it will want the full 8 Gb you've allocated not the 5 Gb it uses at startup?
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- stingraycharles 13 minutes ago
  I don’t assume that macOS virtualization is advanced enough to support memory ballooning, or is that not what you’re referring to?
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  - pyth0 1 minute ago
    I don't assume anything either, but a single Google search is enough to dispel that [1]
    [1] https://developer.apple.com/documentation/virtualization/vzv...
  - nottorp 3 minutes ago
    What will that help with if the host and guest combined need > physical ram?
dieulot 41 minutes ago
I'm wondering if the Xcode simulator (without Xcode running) performs as well, my 2020 Intel MacBook Air has been incapable of running Safari in iOS smoothly for nearly all its life.