powermetrics inside tmux

Make the scripts executable once:

chmod +x CPUwall.sh GPUwall.sh tmux-wall.sh

Start the split view with one command:

./tmux-wall.sh

It will ask for your password once at startup, then create and attach to a root-owned tmux session.

Recreate the tmux session after script changes:

TMUX_RECREATE=1 ./tmux-wall.sh

Useful overrides:

SAMPLE_MS=2000 HOLD_SEC=2 ./tmux-wall.sh

Thermal estimate tuning:

AMBIENT_C=23 IDLE_OFFSET_C=9 DISPLAY_BIAS_W=2.5 CPU_THETA_C_PER_W=1.55 GPU_THETA_C_PER_W=1.35 CLAMSHELL_FACTOR=1.08 ./tmux-wall.sh

The thermal section now shows estimated absolute CPU-side and GPU-side temperatures plus the estimated gradient. These values are derived from powermetrics CPU/GPU power and activity plus thermal pressure. They are modeled estimates, not direct sensor readings.

If you want to attach to an existing session later:

sudo tmux attach -t powermetrics