GECS 5.0.0-rc4 - Query Performance Optimization

[5.0.0-rc4] - 2025-10-14 - Query Performance Optimization

🚀 Performance Improvements

Massive Query Cache Key Optimization

85% faster cache key generation leading to dramatic query performance improvements:

• Cache key generation: 283ms → 43ms (85% faster)
• Query caching: 500ms → 4.7ms (99% faster)
• Query with all: 13ms → 0.55ms (96% faster)
• Query with any: 27ms → 5.6ms (79% faster)
• Complex queries: Significantly improved scaling

Technical Details:

• Replaced expensive str(comp) fallbacks with direct get_instance_id() calls
• Eliminated conditional checks in cache key generation hot path
• Implemented polynomial rolling hash with XOR for collision resistance
• Used different prime multipliers (31, 37, 41) for component type separation

Impact:

• Query system now scales linearly instead of exponentially
• ECS performance optimized for large-scale applications (10,000+ entities)
• No performance regressions in any core ECS operations
• Cache effectiveness dramatically improved

See performance test results in reports/perf/ for detailed metrics.

Full Changelog: v5.0.0-rc3...v5.0.0-rc4