WASM Size Optimization Trick #57
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Hi @SaumitraLohokare ! Have you considered using wasm-opt? This tool is specifically designed for WASM optimization. |
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Thanks for the link! I did not know about this! I'll definitely check this out @nikpivkin |
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@SaumitraLohokare using wasm-opt with optimization flag O4 I got a file which is 2 times smaller than the original one: ❯ wasm-opt -O4 client.wasm -o client-opt.wasm
❯ du -sh *.wasm
96K client-opt.wasm
184K client.wasm |
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TLDR;
$ wasm2wat client.wasm > client.wat$ wat2wasm client.wat -o client.wasm$ wasm2wat server.wasm > server.wat$ wat2wasm server.wat -o server.wasmProblem
LLVM bloats the generated wasm binary.
Solution
While learning about WASM and WAT I noticed that if you disassemble the wasm binary using
wasm2wat, then compile it again usingwat2wasm, it significantly reduces the size of the generated wasm binary.This is important for online games as smaller binaries take less time to load.
Results
On running the game no issues were noticed.