Latch

This patch release focuses on production observability and rigorous performance auditing. We have completely overhauled the logging layer and validated the core proxy engine under high-load benchmarking conditions.

Key Changes

• Structured Production Logging: Fully migrated the logging infrastructure from standard text output to Go's native log/slog library. Log messages now include structured metadata attributes (e.g., remote_addr, local_addr) and fully support configurable severity levels (Debug, Info, Warn, Error).
• High-Load Performance Benchmarks: Introduced micro-benchmarking (BenchmarkProxyPipe) inside the network test suite to measure throughput and track regression under continuous simulated data transfer.
• Verified Zero-Allocation Pipeline: Profiled the application under load using go test -bench. Results confirm 0 B/op and 0 allocs/op on the critical data transmission path, verifying that sync.Pool buffer allocation and the new slog implementation introduce zero memory pressure or GC overhead.
• Test Suite Stabilization: Fixed intermittent race conditions and refined port lifecycle management in the end-to-end integration tests to ensure deterministic local and CI execution.

Performance Evaluation Metrics

Executed on Intel(R) Core(TM) i5-14600KF (Go architecture: amd64, OS: windows):

BenchmarkProxyPipe-20      975308      1129 ns/op        0 B/op        0 allocs/op

To audit memory allocations and execute the micro-benchmarks locally, run:

go test -run=^$ -bench=BenchmarkProxyPipe -benchmem ./internal/network/tests/...