macvmtop

macvmtop is a Rust command line monitor for macOS virtual machines. It is inspired by mactop, but it focuses on the telemetry virtualized macOS reports from inside the guest.

The project has three user-facing modes:

• tui: live terminal dashboard
• once: one text snapshot
• json: machine/system information, optionally with repeated sampled metrics frames

What It Shows

macvmtop reports VM-visible data:

• guest identity and kernel details
• per-vCPU utilization
• guest load average
• memory and VM counters
• process CPU, memory, and thread counts
• guest network interface counters
• guest mounted volume usage
• guest uptime

The data comes from Darwin APIs available inside the VM. macvmtop does not synthesize physical host metrics.

Quick Example

Install:

curl -fsSL https://macvmtop.hongjunwu.com/install.sh | sh

Run one sample:

macvmtop once --interval 0.5 --processes 10

For machine-readable output:

macvmtop json --sample --interval 0.5 --processes 10

For repeated headless samples:

macvmtop json --sample --count 5 --interval 1 --processes 10

Project Status

The current build is a working early Rust implementation. The TUI, one-shot text output, and JSON output are implemented. GitHub Release archives are published for Apple Silicon and Intel macOS guests, and the hosted installer downloads and verifies those archives.

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