A comprehensive system monitoring service with a modern web dashboard for real-time resource monitoring. Originally designed for Windows VMs running on Unraid servers, now featuring a responsive web interface for easy monitoring and management.

🌟 New: Web Dashboard

Access the interactive web dashboard at http://localhost:5000 featuring:

Real-time Monitoring: Live updates every 15 seconds via SignalR
Responsive Design: Mobile-friendly interface built with Tailwind CSS
Interactive Controls: Toggle auto-refresh, show/hide sections, manual refresh
Game Detection: Prominent game monitoring with process termination
Process Management: View and terminate top processes
System Details: Comprehensive system information and disk usage
Performance Charts: Historical CPU and memory usage graphs
API Documentation: Built-in Swagger/OpenAPI interface at /swagger

🚀 Features

Web Dashboard

Modern Interface: Clean, responsive design with dark/light themes
Real-time Updates: SignalR-powered live data updates
Auto-refresh Control: Toggle between automatic and manual refresh modes
Game Detection Section: Monitor running games with termination capability
Process Management: View top processes with one-click termination
System Information: Detailed hardware and software information
Disk Usage Visualization: Visual disk space utilization
Performance Charts: Historical data visualization with Chart.js
Mobile Responsive: Works seamlessly on phones, tablets, and desktop

Core Monitoring

CPU Monitoring: Per-core usage, frequency, temperature, and throttling detection
Memory Monitoring: RAM usage, available memory, committed memory, and paging
GPU Monitoring: NVIDIA GPU usage, memory utilization, temperature, fan speed, and power consumption (via NVML)
Disk Monitoring: I/O statistics, space usage, and performance counters
Network Monitoring: Bandwidth usage, packet statistics, and interface data
Temperature Monitoring: CPU and hard drive temperature sensors

VM-Specific Features

VM Detection: Automatically detects virtualization environment
Hypervisor Identification: Identifies VMware, VirtualBox, Hyper-V, KVM, etc.
Unraid Optimization: Optimized for Unraid VM environments
Resource Alerting: Configurable thresholds for resource usage alerts

Advanced Features

Game Detection: Multi-platform game detection with fullscreen monitoring and configurable root folders
Process Management: View top processes with CPU/memory percentages, terminate processes via API
Smart Alerting: Duration-based alerting to prevent false positives
Telegram Bot Integration: Real-time alerts via Telegram bot with customizable notifications
System Control: Remote shutdown/restart capabilities
Health Monitoring: Comprehensive health checks and uptime tracking
Real-time Metrics: CPU usage calculation and memory percentage tracking for processes

📡 API Endpoints

The service runs a web server on http://localhost:5000 providing:

Web Interface

GET / - Main Dashboard - Interactive web interface for monitoring
GET /swagger - API Documentation - Interactive API explorer and documentation

REST API

All API endpoints are available at http://localhost:5000/api/[endpoint]:

System Information

GET /api/resource/usage - Complete resource overview - All monitoring data in one call
GET /api/resource/system-info - Complete system information including VM details
GET /api/resource/cpu - Detailed CPU metrics with per-core data
GET /api/resource/memory - Memory utilization and statistics
GET /api/resource/gpu - NVIDIA GPU usage, memory, temperature, fan speed, and power consumption
GET /api/resource/disks - Disk I/O and space usage for all drives
GET /api/resource/network - Network interface statistics
GET /api/resource/processes?count=10 - Top processes by CPU/memory usage with percentage data

Process Management

POST /api/resource/kill-process/{processId} - Terminate Process - End any process by ID

Real-time Updates

SignalR Hub: /resourceHub - Real-time data updates every 15 seconds

Game Detection

GET /api/current-game - Currently running game information
GET /api/all-games - All detected games on the system
GET /api/fullscreen-status - Check if any game is running fullscreen

Alerting System

GET /api/alerts/active - Currently active alerts
GET /api/alerts/history?count=100 - Alert history
POST /api/alerts/{alertId}/resolve - Manually resolve an alert
GET /api/alerts/enabled - Check if alerting is enabled

Telegram Bot Integration

GET /api/telegram/status - Check Telegram bot status and connection
POST /api/telegram/test - Send a test alert to verify bot configuration

System Control

POST /api/process/kill - Terminate a process (requires process ID and optional force flag)
POST /api/system/shutdown - Shutdown, restart, or cancel system operations
POST /api/service/stop - Stop the monitoring service

Process Management Details:

The /api/top-processes endpoint returns processes sorted by CPU usage
Each process includes real-time CPU usage percentage and memory usage percentage
CPU usage is calculated using time-based measurements between API calls
Memory usage percentage is calculated relative to total system memory
Process termination supports both graceful (force: false) and forced (force: true) termination

🛠️ Installation & Usage

Option 1: Web Dashboard (Recommended)

cd C:\Work\DEV\ResourceUsageAPI
dotnet run --configuration Release

Then open your browser to http://localhost:5000 for the interactive dashboard.

Option 2: Windows Service (Production)

# Run as Administrator
cd C:\Work\DEV\ResourceUsageAPI
.\install-service.ps1

Option 3: Linux Service (if running on Linux)

cd /path/to/ResourceUsageAPI
chmod +x install-service.sh
sudo ./install-service.sh

Option 4: Standalone Executable

cd C:\Work\DEV\ResourceUsageAPI
dotnet build --configuration Release
dotnet publish --configuration Release
cd bin\Release\net9.0-windows\publish
.\ResourceMonitorService.exe

🎮 Web Dashboard Features

Dashboard Overview

Resource Cards: CPU, Memory, GPU, and Network usage with visual progress bars
Game Detection: Prominent section showing currently running games
Auto-refresh Toggle: Control automatic updates (15-second intervals)
Manual Refresh: Force immediate data updates
Responsive Design: Works on desktop, tablet, and mobile devices

Interactive Sections

Processes: View and terminate top CPU/memory consuming processes
Details: System information, disk usage, and performance charts
Game Management: Monitor and terminate running games
Real-time Charts: Historical CPU and memory usage visualization

Controls

Auto: ON/OFF - Toggle automatic data updates
Processes - Show/hide process management table
Details - Show/hide system information and charts
Refresh - Manually update all data immediately

📊 Service Management

Starting and Stopping the Service

# Start the service
Start-Service "ResourceMonitorService"

# Stop the service
Stop-Service "ResourceMonitorService"

# Get service status
Get-Service "ResourceMonitorService"

# Restart the service
Restart-Service "ResourceMonitorService"

Development Mode

For development and testing:

# Run in development mode with hot reload
dotnet run --environment Development

# Access the dashboard at http://localhost:5000
# Access Swagger API documentation at http://localhost:5000/swagger

Troubleshooting

Service won't start: Check the logs in the logs/ directory
No GPU data: Make sure you have an NVIDIA GPU and drivers installed
High CPU usage: Adjust monitoring intervals in appsettings.json
Web dashboard not accessible: Verify firewall settings and ensure port 5000 is available
Game detection issues: Check if games are running from standard installation directories
API errors: Verify endpoints using Swagger documentation at /swagger
Performance issues: Consider increasing UpdateIntervalMs in configuration

⚙️ Configuration

Configuration is managed through appsettings.json:

{
  "MonitoringSettings": {
    "UpdateIntervalMs": 15000,
    "EnableGpuMonitoring": true,
    "EnableDiskMonitoring": true,
    "EnableNetworkMonitoring": true,
    "EnableTemperatureMonitoring": true,
    "EnableProcessMonitoring": true,
    "EnableGameDetection": true,
    "EnableAlerts": true,
    "GamePlatformPaths": [
      "\\steamapps\\common\\",
      "\\Epic Games\\",
      "\\GOG Galaxy\\Games\\",
      "\\Origin Games\\",
      "\\Ubisoft Game Launcher\\games\\"
    ],
    "GameRootFolders": [
      "C:\\Games",
      "D:\\Games",
      "E:\\Games"
    ]
  },
  "Kestrel": {
    "Endpoints": {
      "Http": {
        "Url": "http://localhost:5000"
      },
      "Https": {
        "Url": "https://localhost:5001"
      }
    }
  }
}

Game Detection Configuration

The service supports advanced game detection through two complementary approaches:

Platform-Based Detection

Automatically detects games installed through popular game platforms:

Steam: Games in \steamapps\common\ directories
Epic Games Store: Games in \Epic Games\ directories
GOG Galaxy: Games in \GOG Galaxy\Games\ directories
EA Origin: Games in \Origin Games\ directories
Ubisoft Connect: Games in \Ubisoft Game Launcher\games\ directories

Root Folder Detection

Configure custom game directories for standalone games and non-platform installations:

"GameRootFolders": [
  "C:\\Games",
  "D:\\Games", 
  "E:\\Games"
]

How Root Folder Detection Works:

Priority: Root folders are checked before platform paths
Smart Naming: Extracts game names from directory structure
Flexible Structure: Supports any folder organization under root directories
Fallback Logic: Uses file version info or executable name when needed

Example Game Detection:

C:\Games\Cyberpunk 2077\bin\x64\Cyberpunk2077.exe
  → Game Name: "Cyberpunk 2077"
  → Platform: "Standalone"

D:\Games\The Witcher 3\witcher3.exe  
  → Game Name: "The Witcher 3"
  → Platform: "Standalone"

Configuration Tips:

Add drives where you install standalone games
Include network drives if you store games on NAS
Use absolute paths (e.g., C:\Games, not Games)
Root folders are checked in order, so prioritize most common locations first

Telegram Bot Alerts

The service supports real-time alert notifications via Telegram bot. To set up Telegram alerts:

Create a Telegram Bot - Contact @BotFather on Telegram and create a new bot
Get Chat ID - Send a message to your bot, then visit https://api.telegram.org/bot<TOKEN>/getUpdates
Configure Settings - Add Telegram configuration to your appsettings.json:

{
  "MonitoringSettings": {
    "Telegram": {
      "IsEnabled": true,
      "BotToken": "123456789:ABCdefGHIjklMNOpqrSTUvwxyz",
      "ChatIds": [123456789, -987654321],
      "SendWarningAlerts": true,
      "SendCriticalAlerts": true,
      "SendResolutionNotifications": true,
      "MessageTemplate": "🚨 *{Level} Alert*\n\n📊 *{Component}*\n💬 {Message}\n⏰ {Timestamp}",
      "ResolutionTemplate": "✅ *Alert Resolved*\n\n📊 *{Component}*\n💬 {Message}\n⏰ Resolved at {ResolvedAt}"
    }
  }
}

Features:

Multiple Chats: Send alerts to multiple users/groups by adding chat IDs
Customizable Templates: Modify message format with placeholders for alert data
Alert Filtering: Choose which alert levels to send (Warning/Critical)
Silent Notifications: Warning alerts are sent silently, critical alerts with sound
Resolution Notifications: Optional notifications when alerts are resolved

📋 For detailed setup instructions, see TELEGRAM_SETUP.md

📊 Example API Responses

Health Check

{
  "status": "Healthy",
  "timestamp": "2025-08-07T02:30:00Z",
  "uptime": "1.16:55:30",
  "activeAlerts": 0,
  "monitoringEnabled": {
    "gpu": true,
    "disk": true,
    "network": true,
    "temperature": true,
    "processes": true,
    "games": true,
    "alerts": true
  }
}

CPU Usage

{
  "usage": 15.5,
  "coreUsages": [12.1, 18.3, 14.7, 16.2],
  "temperature": 65.0,
  "maxFrequency": 4400,
  "currentFrequency": 3200,
  "isThrottling": false
}

VM Information

{
  "isVirtualMachine": true,
  "hypervisorVendor": "VMware",
  "uptime": "1.16:55:30",
  "bootTime": "2025-08-05T09:34:04Z",
  "machineName": "WIN11-VM",
  "domain": "WORKGROUP"
}

GPU Usage

{
  "usage": 45,
  "memoryUsage": 60,
  "temperature": 72,
  "fanSpeed": 65,
  "powerUsage": 185000,
  "memoryTotal": 8589934592,
  "memoryUsed": 5153960755,
  "isAvailable": true,
  "name": "NVIDIA GeForce RTX 4070",
  "driverVersion": "551.76",
  "error": ""
}

Game Detection

{
  "gameName": "Cyberpunk 2077",
  "executableName": "Cyberpunk2077.exe",
  "fullPath": "C:\\Games\\Cyberpunk 2077\\bin\\x64\\Cyberpunk2077.exe",
  "processId": 8432,
  "memoryUsage": 4294967296,
  "cpuTime": "00:15:42.1250000",
  "startTime": "2025-08-07T14:30:15.123456+08:00",
  "platform": "Standalone",
  "isFullscreen": true,
  "fps": 0
}

Top Processes

{
  "value": [
    {
      "id": 11820,
      "name": "WmiPrvSE",
      "cpuUsage": 2.7276263,
      "memoryUsage": 83120128,
      "memoryUsagePercentage": 0.12576005,
      "processorTime": "00:26:30.2500000",
      "startTime": "2025-08-05T09:38:38.9837995+08:00",
      "executablePath": "C:\\WINDOWS\\system32\\wbem\\wmiprvse.exe",
      "commandLine": "C:\\WINDOWS\\system32\\wbem\\wmiprvse.exe"
    },
    {
      "id": 8376,
      "name": "explorer",
      "cpuUsage": 1.5750673,
      "memoryUsage": 403636224,
      "memoryUsagePercentage": 0.61069816,
      "processorTime": "00:24:36.7968750",
      "startTime": "2025-08-07T15:26:31.096813+08:00",
      "executablePath": "C:\\WINDOWS\\Explorer.EXE",
      "commandLine": "C:\\WINDOWS\\Explorer.EXE"
    }
  ],
  "count": 2
}

🔧 PowerShell Usage Examples

# Access the web dashboard
Start-Process "http://localhost:5000"

# Get complete resource overview
$resources = Invoke-RestMethod -Uri "http://localhost:5000/api/resource/usage"
Write-Host "CPU: $($resources.cpu.usage.ToString('F1'))%"
Write-Host "Memory: $($resources.memory.usagePercentage.ToString('F1'))%"
Write-Host "GPU: $($resources.gpu.usage)%"

# Get system information
$systemInfo = Invoke-RestMethod -Uri "http://localhost:5000/api/resource/system-info"
Write-Host "Machine: $($systemInfo.machineName)"
Write-Host "OS: $($systemInfo.osVersion)"
Write-Host "CPU: $($systemInfo.cpuName)"

# Get disk usage
$disks = Invoke-RestMethod -Uri "http://localhost:5000/api/resource/disks"
foreach ($disk in $disks) {
    $freeGB = [math]::Round($disk.freeSpace / 1GB, 1)
    $totalGB = [math]::Round($disk.totalSize / 1GB, 1)
    Write-Host "$($disk.driveLetter): $freeGB GB free of $totalGB GB"
}

# Get top processes
$processes = Invoke-RestMethod -Uri "http://localhost:5000/api/resource/processes?count=5"
Write-Host "Top 5 processes by CPU usage:"
foreach ($proc in $processes) {
    if ($proc.cpuUsage) {
        Write-Host "  $($proc.name): $($proc.cpuUsage.ToString('F1'))% CPU"
    }
}

# Terminate a process (example - be careful!)
# Invoke-RestMethod -Uri "http://localhost:5000/api/resource/kill-process/1234" -Method Post

🚨 Known Warnings (Non-Critical)

The service may show warnings in VM environments that don't affect functionality:

Performance Counter Warnings: Some performance counters may not be available in VMs
Temperature Sensor Access: Some temperature sensors require elevated privileges
Process Access Denied: Some system processes require elevated privileges to access
Windows.Forms Compatibility: Game detection works despite .NET Framework compatibility warnings

These warnings are expected in VM environments and the service continues to function normally.

🎯 Perfect for Unraid

This service is specifically optimized for Windows VMs running on Unraid:

VM Detection: Automatically detects and reports virtualization status
Resource Monitoring: Tracks VM resource allocation and usage
Gaming Support: Detects games and monitors performance impact
Remote Management: Full API control for integration with Unraid dashboard
Alert System: Configurable alerts for resource thresholds
Health Monitoring: Comprehensive health checks for VM status

📝 Logging

The service uses Serilog for structured logging:

Console output for real-time monitoring
File logging for persistent records
Configurable log levels (Debug, Information, Warning, Error)
Smart error suppression to prevent log spam in VM environments

🔐 Security

Optional API key authentication
CORS support for web dashboard integration
Process termination requires explicit API calls
System shutdown/restart requires explicit API calls
Configurable allowed origins for API access

📈 Performance

Lightweight background monitoring (15-second intervals by default)
Efficient memory usage with smart caching and cleanup of old process data
Non-blocking async operations
Real-time CPU usage calculation for individual processes
Graceful error handling for VM-specific limitations
Configurable monitoring intervals and features
Smart process tracking with automatic cleanup to prevent memory leaks

🆘 Support

For issues or questions:

Check the console output for warnings/errors
Review the configuration in appsettings.json
Test individual API endpoints using PowerShell or curl
Check Windows Event Logs if running as a service

Version: 2.1.0
Target Framework: .NET 9.0
Platforms: Windows (VM optimized)
License: Open Source

Recent Updates

v2.1.0: Added configurable game root folders for enhanced standalone game detection
v2.0.0: Initial release with comprehensive system monitoring and game detection

Languages

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PowerShell 5%

JavaScript 2.2%

Shell 1.8%

Batchfile 0.6%