On: The Carcinization of Go Programs

[dottedmag]

TL;DR: Instead of building Rust shared library for every OS/arch combination to use it from Go program, produce WASM chunk from Rust and load/execute it in Go using wazero.

[iudqnolq → dottedmag]

The interesting bit for me was that executing the moderately nontrivial wasm fn took <1ms. That makes it more practical than I'd have expected.

[infogulch → iudqnolq]

I wonder what the performance penalty is compared to running directly on native machine code.

[nicoburns → infogulch]

I believe wasm is usually within 2x of native machine code, with the caveat that it can’t do simd or multi threading.

[pjmlp → nicoburns]

It can in latest versions of the standard, but it is still far from what JVM and CLR bytecodes offer in the box.

[manchmalscott → infogulch]

I think the wasm runtime they used compiled it to native on program boot, so I’d guess the penalty is really only on startup time?

[iudqnolq → manchmalscott]

I have no experise, but my gut feeling is that the sandboxing should still add some cost?