Wasm file size

[caperaven]

What problem does this solve or what need does it fill?

I had a look at the bevy examples on the web and it seems like the wasm file is rather bit.
I was wondering if there is a way / pattern to reduce the binary.
I am still in the evaluation phase, but bevy shows a lot of promise for, just need to trim that wasm file.

What solution would you like?

Documentation on how to best optimize for the web.

[jakobhellermann]

There are some tips about optimizing wasm size in the unofficial bevy cheatbook.
The short version:

• use some options to optimize more in release mode (opt-level = 's', lto = 'thin')
• use wasm-opt to optimize further (and remove debug info if you want that)
• serve the file compressed (this makes a huge difference!)

# default options
17M	3d_scene.wasm
12M	3d_scene.wasm.strip
9,9M	3d_scene.wasm.strip.wasm-opt
2,7M	3d_scene.wasm.strip.wasm-opt.gzip
1,7M	3d_scene.wasm.strip.wasm-opt.brotli

# lto = "thin", opt-level = "s"
15M	3d_scene_lto+s.wasm
9,6M	3d_scene_lto+s.wasm.strip
7,6M	3d_scene_lto+s.wasm.strip.wasm-opt
2,1M	3d_scene_lto+s.wasm.strip.wasm-opt.gzip
1,4M	3d_scene_lto+s.wasm.strip.wasm-opt.brotli

[alice-i-cecile]

Closing as a duplicate of #3800.