Performance

Performance

Benchmark (Apple M3 Pro, Release build)

Mode	Throughput	Latency
Synchronous	~500K logs/sec	~2 μs/log
Asynchronous	~1.2M logs/sec	~0.8 μs/log

When to use which

Use case	Mode
Debugging, small apps	Synchronous
Production, high throughput	Asynchronous
Critical errors	Sync (or set flush_level to eError)

Tips

• Use config.async = true for production workloads
• Set flush_level = LogLevel::eError so errors flush immediately
• Use log_level to filter in production (e.g. eInfo) and avoid DEBUG/TRACE overhead