System Monitor

中文说明

A lightweight VS Code / Cursor extension for monitoring system resources on remote Linux (Remote-SSH, WSL, Dev Containers, etc.).

Features

• CPU — Usage percentage, 1/5/15 min load averages
• RAM — Used / Available / Total
• Network — Upload & download speed
• SSH Traffic — Upload & download through your SSH connection
• GPU — NVIDIA GPU utilization, VRAM, temperature, power (multi-GPU)
• Free GPU Picker — Select idle GPUs and copy CUDA_VISIBLE_DEVICES
• Process Manager — Sortable by CPU / RAM / GPU, searchable (supports GPU0 / #0 syntax)
• Status Bar — Configurable pinned metrics
• Settings — Built-in settings panel, no need to edit JSON
• i18n — Chinese & English, auto-detected

Quick Start

1. Install the extension (from Marketplace or .vsix)
2. (Optional, Remote-SSH only) When prompted in a local window, add the extension ID to remote.SSH.defaultExtensions
3. Open a remote workspace: Remote-SSH, WSL, or a Dev Container on Linux
4. The sidebar and status bar appear when the extension runs on Linux

The extension runs in the remote extension host, not on your local OS. It only collects metrics when the remote OS is Linux. The activity bar icon appears only in a remote window (WSL, Dev Containers, SSH, etc.), not in a pure local window. The remote machine must run Linux; Windows or macOS remotes show an unsupported message.

Configuration

All settings are accessible via the Settings button in the sidebar panel. You can also edit settings.json directly:

{
  "sysmonitor.refreshInterval": 2,
  "sysmonitor.statusBar": {
    "barEnabled": true,
    "cpu": true,
    "ram": true,
    "net": "both",
    "ssh": true,
    "gpu": {
      "summary": true,
      "mode": "all",
      "metric": "both",
      "skipIdle": false
    }
  }
}

GPU display modes

• "mode": "off" — no per-card stats in status bar
• "mode": "all" — show all cards
• "mode": "first" + "firstN": 4 — show first N cards
• "mode": "specify" + "cards": [0, 1, 3] — show specific cards
• "mode": "my" — show only cards used by your processes

Hide status bar

Set "barEnabled": false to hide the status bar while keeping the sidebar panel available.

Requirements

• Linux remote server (connects via VS Code Remote-SSH)
• NVIDIA GPU monitoring requires nvidia-smi
• SSH traffic monitoring requires ss