jyablonski / goarctis / 27075193933

60%

Build Type

push

github

Committed by web-flow

Commit Message

feat(system): add gpu and temperature monitoring (#10)

## Description

Adds CPU/GPU temperature monitoring (hwmon + NVIDIA NVML) to the system
tray, plus an opt-in, NVIDIA-only GPU thermal guard that reduces a
card's power limit when it runs hot and restores the default as it
cools.

## Added

- `pkg/system/hwmon.go`, `thermal.go`, `nvidia.go`: hwmon temperature
sampling and NVML GPU stats (temp, util, VRAM, power, fan, clocks,
p-state, processes), merged into the system state.
- `pkg/system/governor.go`: opt-in GPU thermal guard with hysteresis
(clamp at 85°C to 80% of default, restore at 75°C, bounded by min/max),
enabled via `--gpu-thermal-guard` (needs root); session-only and
reverted on exit.
- Tray rows and title indicators for temperatures and GPU details.
- Unit tests for hwmon, NVML, thermal merge, and the governor state
machine.

## Updated

- `pkg/system/{monitor,proc}.go`, `cmd/goarctis/main.go`: thread the
guard config through and restore clamps on shutdown via an `io.Closer`
chain.
- `README.md`, `docs/how_it_works.md`, `docs/gpu_thermal_guard.md`:
document the feature, the flag, and the root requirement.

Coverage Stats

487 of 671 new or added lines in 7 files covered. (72.58%)

3 existing lines in 2 files now uncovered.

1875 of 3160 relevant lines covered (59.34%)

0.67 hits per line