My image file grew to 170 Gb after a few days of use. QEMU “qcow” images will expand like crazy once you start installing software, until they hit a preset limit of 200 Gb.

You’ll need tens of gigabytes of disk space. If you want to run Xcode, have at least 16Gb of RAM installed so that you can allocate about 8Gb to the virtual machine. That kind of emulation can be orders of magnitude slower, though on today’s machines this is not an issue when emulating DOOM. With KVM, x86 virtualization offers near-native performance, which means that CPU calls from the Mac virtual machine are routed directly to your processor in a secure way without any kind of emulation penalty.Īlthough graphics and general UI responsiveness will be slow, but with KVM, software will run blazing fast provided that you have some strong CPU like a more recent Intel i7 or Ryzen 7.Ĭompare the efficiency of KVM with for example DOSBox, where full emulation is needed because of DOS programs using low-level BIOS interrupts and real CPU mode. Then start the libvirtd systemd service and check if the kvm kernel module is running.

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Ubuntu container with docker on mac