macOS-Simple-KVM/docs/guide-performance.md

Guide to Performance Tuning

The default macOS VM configuration (basic.sh) assumes some sane defaults, however this may not reflect the actual topology or peformance capabilities of the underlaying machine.

Here's some tunable parameters to get the most of out QEMU:

Memory

The following line controls memory allocation. The default is 2GB of RAM.

Increase this as needed (limited to the real amount of memory in your machine).

    -m 2G \

Cores

The default configuration enables 4 threads, divided into CPUs with 2 cores each.

    -smp 4,cores=2 \

The following example describes all possible topology flags:

    -smp cores=4,threads=4,sockets=1 \