Performance Optimization Guide

Optimize ArmorEditor for large documents, high traffic, and resource-constrained environments.

Quick Setup

Basic Performance

const editor = new ArmorEditor({
  container: '#editor',
  performance: {
    virtualScrolling: true,
    lazyLoading: true,
    webWorkers: true
  }
});

Virtual Scrolling

Large Document Handling

const editor = new ArmorEditor({
  virtualScrolling: {
    enabled: true,
    chunkSize: 1000,         // Lines per chunk
    bufferSize: 100,         // Buffer around viewport
    renderAhead: 50          // Pre-render lines
  }
});

Virtual Scrolling Benefits

• Handle documents with 100,000+ lines
• Constant memory usage regardless of document size
• Smooth scrolling performance
• Instant loading of large files

Configuration

virtualScrolling: {
  enabled: true,
  chunkSize: 1000,           // Optimal: 500-2000
  bufferSize: 100,           // Optimal: 50-200
  renderAhead: 50,           // Optimal: 25-100
  recycleNodes: true,        // Reuse DOM nodes
  estimatedLineHeight: 20    // For better calculations
}

Lazy Loading

Content on Demand

const editor = new ArmorEditor({
  lazyLoading: {
    enabled: true,
    images: true,             // Lazy load images
    media: true,              // Lazy load videos
    plugins: true,            // Lazy load plugins
    threshold: 0.1            // Load when 10% visible
  }
});

Image Lazy Loading

lazyLoading: {
  images: {
    enabled: true,
    placeholder: 'data:image/svg+xml;base64,...', // Placeholder
    fadeIn: true,             // Fade in effect
    retryAttempts: 3,         // Retry failed loads
    timeout: 5000             // Load timeout
  }
}

Web Workers

Background Processing

const editor = new ArmorEditor({
  webWorkers: {
    enabled: true,
    maxWorkers: 4,            // Number of workers
    tasks: ['spellCheck', 'ai', 'encryption', 'export']
  }
});

Worker Tasks

• Spell checking - Background grammar check
• AI processing - Content generation
• Encryption - Secure data processing
• Export operations - PDF/DOCX generation
• Search indexing - Full-text search

Worker Configuration

webWorkers: {
  enabled: true,
  maxWorkers: navigator.hardwareConcurrency || 4,
  tasks: {
    spellCheck: { worker: true, priority: 'low' },
    ai: { worker: true, priority: 'high' },
    encryption: { worker: true, priority: 'high' },
    export: { worker: true, priority: 'medium' }
  }
}

Memory Management

Efficient Memory Usage

const editor = new ArmorEditor({
  memory: {
    autoCleanup: true,        // Auto cleanup unused objects
    gcInterval: 30000,        // Garbage collection interval
    maxCacheSize: '100MB',    // Maximum cache size
    imageCache: '50MB',       // Image cache limit
    undoLimit: 100            // Undo history limit
  }
});

Memory Optimization

memory: {
  autoCleanup: true,
  strategies: {
    weakReferences: true,     // Use WeakMap/WeakSet
    objectPooling: true,      // Reuse objects
    stringInterning: true,    // Deduplicate strings
    imageCompression: true    // Compress cached images
  }
}

Network Optimization

Efficient Data Transfer

const editor = new ArmorEditor({
  network: {
    compression: true,        // Gzip/Brotli compression
    batchRequests: true,      // Batch API calls
    caching: 'aggressive',    // Cache strategy
    prefetch: true            // Prefetch resources
  }
});

CDN Integration

network: {
  cdn: {
    enabled: true,
    baseUrl: 'https://cdn.example.com',
    assets: ['fonts', 'icons', 'images'],
    fallback: true            // Fallback to local
  }
}

Bundle Optimization

Code Splitting

const editor = new ArmorEditor({
  bundling: {
    codeSplitting: true,      // Split code by features
    treeshaking: true,        // Remove unused code
    minification: true,       // Minify code
    compression: 'brotli'     // Compression algorithm
  }
});

Dynamic Imports

// Load features on demand
const aiFeatures = await import('armor-editor/ai');
const collaboration = await import('armor-editor/collaboration');
const security = await import('armor-editor/security');

// Conditional loading
if (needsAI) {
  await editor.loadFeature('ai');
}

Rendering Optimization

Efficient Rendering

const editor = new ArmorEditor({
  rendering: {
    requestAnimationFrame: true, // Use RAF for updates
    batchUpdates: true,          // Batch DOM updates
    debounceDelay: 16,           // 60fps debouncing
    useDocumentFragment: true    // Efficient DOM manipulation
  }
});

GPU Acceleration

rendering: {
  gpu: {
    enabled: true,
    css3d: true,              // CSS 3D transforms
    webgl: true,              // WebGL acceleration
    canvas: 'gpu'             // GPU-accelerated canvas
  }
}

Caching Strategies

Multi-Level Caching

const editor = new ArmorEditor({
  caching: {
    levels: {
      memory: {
        enabled: true,
        maxSize: '50MB',
        ttl: 3600               // 1 hour
      },
      localStorage: {
        enabled: true,
        maxSize: '100MB',
        ttl: 86400              // 24 hours
      },
      indexedDB: {
        enabled: true,
        maxSize: '500MB',
        ttl: 604800             // 7 days
      }
    }
  }
});

Cache Strategies

caching: {
  strategies: {
    documents: 'lru',         // Least Recently Used
    images: 'lfu',            // Least Frequently Used
    fonts: 'persistent',      // Never expire
    api: 'ttl'               // Time To Live
  }
}

Performance Monitoring

Real-time Metrics

const editor = new ArmorEditor({
  monitoring: {
    enabled: true,
    metrics: ['fps', 'memory', 'network', 'rendering'],
    alerts: {
      lowFPS: 30,             // Alert if FPS < 30
      highMemory: '200MB',    // Alert if memory > 200MB
      slowNetwork: 1000       // Alert if request > 1s
    }
  }
});

Performance Events

// Monitor performance
editor.on('performanceMetric', (metric) => {
  console.log(`${metric.name}: ${metric.value}`);
});

editor.on('performanceAlert', (alert) => {
  console.warn(`Performance alert: ${alert.type}`);
});

// Get current metrics
const metrics = editor.getPerformanceMetrics();
console.log('FPS:', metrics.fps);
console.log('Memory:', metrics.memory);

Use Cases

Large Document Editor

const largeDocEditor = new ArmorEditor({
  container: '#large-doc',
  
  // Virtual scrolling for 100k+ lines
  virtualScrolling: {
    enabled: true,
    chunkSize: 2000,
    bufferSize: 200
  },
  
  // Lazy loading for media
  lazyLoading: {
    enabled: true,
    images: true,
    media: true
  },
  
  // Background processing
  webWorkers: {
    enabled: true,
    maxWorkers: 6,
    tasks: ['spellCheck', 'search', 'export']
  },
  
  // Memory management
  memory: {
    autoCleanup: true,
    maxCacheSize: '200MB',
    undoLimit: 50
  }
});

High-Traffic Application

const highTrafficEditor = new ArmorEditor({
  container: '#traffic-editor',
  
  // Network optimization
  network: {
    compression: true,
    batchRequests: true,
    caching: 'aggressive',
    cdn: {
      enabled: true,
      baseUrl: 'https://cdn.example.com'
    }
  },
  
  // Bundle optimization
  bundling: {
    codeSplitting: true,
    treeshaking: true,
    compression: 'brotli'
  },
  
  // Caching
  caching: {
    levels: {
      memory: { maxSize: '100MB' },
      localStorage: { maxSize: '200MB' },
      indexedDB: { maxSize: '1GB' }
    }
  }
});

Mobile-Optimized Editor

const mobileEditor = new ArmorEditor({
  container: '#mobile-editor',
  
  // Reduced resource usage
  performance: {
    virtualScrolling: true,
    lazyLoading: true,
    webWorkers: false        // Limited on mobile
  },
  
  // Memory constraints
  memory: {
    maxCacheSize: '25MB',
    imageCache: '10MB',
    undoLimit: 25
  },
  
  // Network optimization
  network: {
    compression: true,
    prefetch: false,         // Save bandwidth
    caching: 'conservative'
  },
  
  // Rendering optimization
  rendering: {
    gpu: { enabled: false }, // Battery saving
    debounceDelay: 32       // 30fps for battery
  }
});

Benchmarking

Performance Testing

// Benchmark editor performance
const benchmark = editor.createBenchmark({
  tests: [
    'document_load',
    'typing_performance',
    'scroll_performance',
    'memory_usage'
  ],
  iterations: 100,
  warmup: 10
});

const results = await benchmark.run();
console.log('Results:', results);

Load Testing

// Simulate high load
const loadTest = editor.createLoadTest({
  concurrentUsers: 100,
  duration: 300,           // 5 minutes
  operations: [
    'type_text',
    'format_text',
    'insert_image',
    'save_document'
  ]
});

const loadResults = await loadTest.run();

Configuration Options

Performance Options

Option	Type	Default	Description
virtualScrolling	boolean	false	Enable virtual scrolling
lazyLoading	boolean	false	Enable lazy loading
webWorkers	boolean	false	Enable web workers
memoryLimit	string	'100MB'	Memory usage limit
cacheSize	string	'50MB'	Cache size limit

Optimization Levels

// Performance presets
performance: 'high'        // High performance, more resources
performance: 'balanced'    // Balanced performance and resources
performance: 'battery'     // Battery optimized, lower performance
performance: 'custom'      // Custom configuration

Best Practices

For Large Documents

1. Enable virtual scrolling for 1000+ lines
2. Use lazy loading for images and media
3. Limit undo history to 50-100 operations
4. Enable web workers for background tasks
5. Monitor memory usage regularly

For High Traffic

1. Use CDN for static assets
2. Enable compression for all requests
3. Implement caching at multiple levels
4. Use code splitting for features
5. Monitor performance metrics

For Mobile Devices

1. Reduce memory usage limits
2. Disable GPU acceleration for battery
3. Use conservative caching
4. Limit concurrent operations
5. Optimize for touch interactions

Troubleshooting

Performance Issues

// Debug performance
editor.enablePerformanceDebugging();

// Check memory usage
const memory = editor.getMemoryUsage();
if (memory > 100 * 1024 * 1024) { // 100MB
  editor.cleanup();
}

// Monitor FPS
editor.on('lowFPS', (fps) => {
  console.warn('Low FPS detected:', fps);
  editor.reduceQuality();
});

Memory Leaks

// Detect memory leaks
editor.on('memoryLeak', (leak) => {
  console.error('Memory leak detected:', leak);
  editor.forceCleanup();
});

// Manual cleanup
editor.cleanup();
editor.clearCache();
editor.destroyUnusedObjects();

Examples

• Large Document Demo
• Performance Benchmark
• Mobile Optimization