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====== Go filesize optimization tricks ======

Let's assume that you want to use TinyGo, but can't - in my case, it was high GC pauses due to it using a simple mark/sweep GC designed for 64KB heaps, not multi-megabyte ones... What tricks can you employ to make your Go file smaller?

Developed as part of WebAssembly ZZT port research - [[https://github.com/OpenZoo/openzoo-go|OpenZoo/openzoo-go]].

===== Development =====

  * Check the size of imported packages: [[https://stackoverflow.com/questions/70764915/how-to-check-the-size-of-packages-linked-into-my-go-code|https://stackoverflow.com/questions/70764915/how-to-check-the-size-of-packages-linked-into-my-go-code]]

===== Compilation =====

  * Add ''-trimpath -ldflags="-s -w"'' at the end of the ''go build'' comamnd to remove/reduce debugging information.
  * Replace ''go build'' with ''garble -tiny build'' to remove debugging information/stack traces even further. (Install instructions for garble [here](https://github.com/burrowers/garble).)
  * For WebAssembly, use ''wasm-opt -Oz -o out/openzoo-go-optimized.wasm out/openzoo-go.wasm'' to run a separate optimization pass on the WASM binary.
  * Use ''-gcflags=all="-B"'' to disable bounds checking.