emscripten-core/emscripten

DOC Optimizing WASM browser compilation time

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#15,249 opened on Oct 6, 2021

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Description

The documentation on optimizing compilation and optimizing load time are quite nice.

I wonder if anyone could share optimization advice specifically for the WASM compilation time in the browser. Are there options that are known to affect it, well besides the size of the produced .wasm objects? We found out that it's the bottleneck in Pyodide for large scientific Python packages (https://github.com/pyodide/pyodide/issues/347#issuecomment-933834657)

Also the documentation on the manual persistance of compiled modules to IndexedDB might need to be updated, https://github.com/emscripten-core/emscripten/blame/2595d3f703b6d6eaf312a2b027ef66c6ab3c1031/site/source/docs/compiling/Deploying-Pages.rst#L44 since that was deprecated https://github.com/WebAssembly/spec/issues/821

Contributor guide

Research direction
Research and document best practices for reducing WASM compilation time in the browser, and update the section on manual persistence of compiled modules to IndexedDB to reflect the current deprecation status.
Tech stack
cppwasm
Domain
documentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
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1-3 hours
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Active
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Clear
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Git
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70