ASYNCIFY_ONLY doesn't decrease the link time process

[aharondavid]

Hi,
By using ACYNCIFY_ONLY=@file.txt that contain about 10 methods, I accepted to decrease the link time process, but, unfortunately, it doesn't.
any one can explain?

[kripken]

Most of the work in Asyncify is just processing the wasm to a form that Asyncify can handle (flattening + optimizing). So instrumenting fewer functions will not make much difference there, I'm afraid.

The full solution is wasm stack switching, which will have normal/fast link times. It is already testable, but has not shipped yet in any browser.

edit: there is also an issue to only flatten what we need in Asyncify, WebAssembly/binaryen#4822

[aharondavid]

Understand, thanks!.