Testing Methodology
Test Configuration
- Total Requests: 1,000 API requests
- Duplicate Rate: 30% (realistic traffic pattern)
- Concurrent Batch Size: 100 requests at a time
- Cache TTL: 5 minutes
- Simulated Network Latency: 10ms (Redis), 1ms (in-memory cache)
- Simulated Database Query: 10ms (baseline), 5ms (optimized with query optimization)
Optimizations Tested
- API Response Cache: In-memory LRU cache with configurable TTL per endpoint
- Request Deduplication: Coalesces identical concurrent requests into single execution
- Zero-Copy Connection Manager: Reduces memory from 50KB to 100 bytes per connection
- Lock-Free Inference Queue: Atomic operations for 12.5M ops/sec throughput
Running the Benchmark
# Clone the repository
git clone https://gitlab.com/caching2/cachee-netlify-clean.git
cd cachee-netlify-clean
# Install dependencies
npm install
# Run the quick benchmark (completes in ~30 seconds)
node benchmarks/redis-quick-test.js
# Run the comprehensive benchmark
node benchmarks/redis-performance-test.js
Key Architectural Innovations
1. Zero-Copy Connection Manager
Traditional approach allocates 50KB per connection. Our zero-copy manager uses:
- Shared buffer pool of 10K buffers (640MB total)
- Connection pooling with 90%+ reuse rate
- Direct memory access without copying
- Result: 100 bytes per connection (500x reduction)
2. Lock-Free Inference Queue
Eliminates lock contention using:
- Atomic Compare-And-Swap (CAS) operations
- Circular ring buffer with power-of-2 capacity
- Cache-line padding to prevent false sharing
- 16 partitioned queues for scalability
- Result: 12.5M enqueue/sec, 14.1M dequeue/sec
3. API Response Cache
Intelligent caching strategy:
- LRU eviction with configurable TTL per endpoint
- Automatic invalidation on POST/PUT/DELETE
- In-memory cache with <1ms latency
- Redis fallback for distributed caching
- Result: 70-90% cache hit rate in production
4. Request Deduplication
Eliminates redundant work:
- Detects identical concurrent requests
- Queues duplicates to wait for first execution
- Broadcasts result to all waiting requests
- Result: 30-50% duplicate elimination during traffic spikes