Mini SysMon
A lightweight system metrics panel for Visual Studio Code. Monitor CPU, memory, disk, GPU, and Ollama LLM status directly in your editor.
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Features
- CPU — Total usage + per-core breakdown (with macOS powermetrics enhancement)
- Memory — Usage percentage with per-process breakdown and stacked bar
- Disk — Usage, available space, and I/O read speed
- GPU — Apple Silicon (ioreg) and NVIDIA (nvidia-smi) utilization
- Ollama — Running/installed LLM model status
- Themes — Three built-in themes + custom CSS support
- Efficient — Auto-pauses collection when the panel is hidden
Installation
From VSIX (local)
npm install
npm run compile
npx @vscode/vsce package
code --install-extension vscode-mini-sysmon-0.1.0.vsix
From Marketplace
Coming soon.
Usage
After installation, the mini-sysmon tab appears in the bottom panel area (alongside Terminal, Output, Debug Console).
Metrics update every 5 seconds by default.
Configuration
Open Settings and search for "Mini SysMon":
| Setting |
Default |
Description |
minipanel.updateInterval |
5000 |
Update interval in milliseconds (1000–60000) |
minipanel.theme |
"default" |
Theme: default, minimal, or vscode |
minipanel.customThemePath |
"" |
Path to a custom CSS file |
minipanel.enableGpu |
true |
Enable GPU metrics collection |
minipanel.enableOllama |
true |
Enable Ollama status polling |
minipanel.processBreakdownCount |
2 |
Number of top processes in memory overlay |
Themes
| Theme |
Description |
| default |
Dark gradient background with green accents and glow effects |
| minimal |
Flat black background, no decorations |
| vscode |
Follows your editor's color theme using var(--vscode-*) variables |
Custom Theme
Set minipanel.customThemePath to an absolute path of a CSS file. It loads after the built-in theme, so you can selectively override styles.
See media/themes/default.css for the full list of BEM classes.
| Metric |
macOS |
Linux |
Windows |
| CPU (total) |
os.cpus() delta |
os.cpus() delta |
os.cpus() delta |
| CPU (per-core) |
powermetrics* |
os.cpus() |
os.cpus() |
| Memory |
vm_stat + ps |
/proc/meminfo + ps |
os module + tasklist |
| Disk |
df + iostat |
df + iostat |
wmic (no I/O speed) |
| GPU |
ioreg (Apple Silicon) |
nvidia-smi |
nvidia-smi |
| Load Average |
os.loadavg() |
os.loadavg() |
N/A |
| Ollama |
HTTP localhost:11434 |
HTTP localhost:11434 |
HTTP localhost:11434 |
* macOS powermetrics note: Per-core CPU data via powermetrics requires passwordless sudo. If not configured, the extension silently falls back to os.cpus() data. To enable:
# Add to /etc/sudoers.d/powermetrics (replace <username>):
<username> ALL=(ALL) NOPASSWD: /usr/bin/powermetrics
Development
npm install
npm run watch # Watch mode
# Press F5 in VSCode to launch Extension Development Host
See CONTRIBUTING.md for details.
License
MIT
