1545131 - compress wasm alt-data file

Status: RESOLVED FIXED

(Core :: JavaScript: WebAssembly, enhancement, P3)

Description

[Luke Wagner [:luke]]

wasm's alt-data is quite compressible (~3x) with gzip, producing a file smaller than the original (uncompressed) .wasm in my local measurements. It's also pretty easy to integrate into the existing stream consumer code added by bug 1487113.

Without this, web.autocad.com's .wasm's alt-data falls outside the http cache's individual cache-file quota.

Comment 1

[Luke Wagner [:luke]]

Attachment: Bug 1545131 - compress wasm alt data entries (r=jandem)

Comment 2

[Luke Wagner [:luke]]

To wit, this compresses a 148mb cache file (code + metadata) to 32mb, which does get successfully stored in the cache.

Comment 3

[Lars T Hansen [:lth]]

Assigning to Yury since he's looking at caching but really we should be discussing specifically what the best path forward is, once the basic caching code has landed.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/6d6adcf77b5a
compress wasm alt data entries (r=jandem)

Comment 5

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/6d6adcf77b5a