slog

The slog package provides a simple, basic, fast leveled logger.

It supports logging to stderr and stdout, various levels, caller location information (file, line) and backtraces.

It tries to minimize memory allocations by using an internal lock-less pool of buffers.

It does not use any locking so log messages might get "mixed" between the threads.

Note that enabling file location or backtracing will cause a significant slowdown and lot of memory allocations.