Performance Optimization

DocsJS is designed for high-performance document processing at scale.

Streaming Processing

Large documents are processed using streaming to minimize memory footprint:

const engine = new CoreEngine();
// Documents are processed in chunks
const result = await engine.transformDocument(largeFile);

Worker Management

CPU-intensive tasks can be offloaded to workers:

const engine = new CoreEngine({
  workers: {
    enabled: true,
    maxConcurrency: 4,
    timeout: 30000,
  },
});

Resource Controls

Prevent resource exhaustion with built-in limits:

const profile = {
  id: "performance-optimized",
  compute: {
    maxMemoryMB: 100,
    maxCpuSecs: 10,
  },
};

Benchmarks

Operation	Time	Memory
Small DOCX (< 1MB)	~50ms	~10MB
Medium DOCX (1-10MB)	~200ms	~50MB
Large DOCX (> 10MB)	~1s	~100MB

Optimization Tips

1. Use Profiles: Select appropriate profiles for your use case
2. Enable Caching: Cache parsed AST for repeated operations
3. Batch Processing: Process multiple documents in parallel
4. Lazy Loading: Load plugins only when needed