On: macOS in QEMU in Docker

[GordonS]

If we put aside the licensing issues, isn't QEMU notoriously slow? Building iOS apps seems pretty slow even on a high-end MBP, so I'd be curious how long it took under QEMU.

Still, very interesting idea!

[znpy → GordonS]

Qemu Is a bit slow when doing full system virtualization.

Qemu-kvm however is insanely fast as it offloads most of the actual virtualization to KVM and to the native virtualization instruction set .

[q3k → GordonS]

> isn't QEMU notoriously slow

No! Major cloud providers use it to provide VMs with basically zero overhead.