feat(richlogger): Enhance Rich Logger Performance with Field Processing Caching #5187
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This PR introduces a performance optimization for the rich logger by implementing a caching mechanism that avoids repeated processFieldValue calls for the same field names. The solution adds a unique logger ID system and caches field processors to eliminate reflection overhead.
Changes Made
Logger ID System
Added atomic counter loggerIDCounter to generate unique IDs for each logger instance
Modified rich logger methods (WithCallerSkip, WithContext, WithDuration, WithFields) to generate new unique IDs using atomic.AddUint64(&loggerIDCounter, 1)
Caching Mechanism
Cache Key: loggerID (e.g., "123")
Cache Value: a slice of field processor functions that handle specific field types without reflection
Performance Optimization
Before: Every field value processed through processFieldValue with reflection overhead
After: Field processors cached per field name, processing happens only once per field type
Benefits: Eliminates reflection overhead for repeated field names, significant performance improvement for loggers with many fields
Writer Interface Changes
This is a break change
close #5067
I also create benchmark with 10 fields and 1000 fields
The benchmark shows higher performance and less memory use and allocs