This entry was posted in Tech and tagged FreeBSD, HowTo, macOS, QEMU, Virtualization on Novemby Antranig Vartanian. After this change the usage will be closer to 5%. Without this setting, an idle FreeBSD Parallels guest will use roughly 15% of the CPU of a single processor iMac®. This is accomplished by adding the following line to /boot/nf: Apparently, QEMU is the only piece of open source code that can emulate an x86 operating system on the new Apple silicon (M1, M2, etc.). The most important step is to reduce the kern.hz tunable to reduce the CPU utilization of FreeBSD under the Parallels environment. The problem is that whenever I booted the arm64.aarch64 FreeBSD on QEMU, it would use so much CPU on the host, that my battery would die in an hour or so.Īfter a lot of searching, I finally found this, this and this, which eventually got me to this page on the handbook While M1 is pretty fast, VM emulation is still slow. It gets the job done.īut whenever I want to do FreeBSD development, I need a fast machine. While my personal machine is running FreeBSD, many times I’ve been in a situation where I need to run FreeBSD on my M1 MacBook Air, at least as a Virtual Machine.įor 9 months I’ve been running the AMD64 version of FreeBSD on QEMU/UTM.app using emulation. Apple Silicon is an exciting ARM64 platform and it’s in active development. At this point, a lot of people that I know use these Apple Silicon machines. Around a year ago I got an M1 MacBook Air for work.
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