- Add blake3_bench and sha512_bench parameters to map_stats RPC
- Track keylet hash input sizes in digest.h for performance analysis
- Implement comprehensive BLAKE3 test suite with real-world benchmarks
- Add performance comparison documentation for BLAKE3 vs SHA-512
- Include Gemini research on hash functions for small inputs
Benchmarks show BLAKE3 provides:
- 1.78x speedup for keylet operations (22-102 bytes)
- 1.35x speedup for leaf nodes (167 bytes avg)
- 1.20x speedup for inner nodes (516 bytes)
- Overall 10-13% reduction in validation time
The analysis reveals that while BLAKE3 offers measurable improvements,
the gains are modest rather than revolutionary due to:
- SHAMap traversal consuming ~47% of total time
- Diminishing returns as input size increases
- Architectural requirement for high-entropy keys
