3 ms·

Does anyone by chance have benchmarks of runtime (so not the compile time) when using Cranelift? I'm seeing a mention of "twice as slow" in the article, but tha

• cfallin 3y ago
  There are some benchmarks of Cranelift-based Wasm VMs (Wasmtime) vs. LLVM-based Wasm VMs here: https://00f.net/2023/01/04/webassembly-benchmark-2023/ https://00f.net/2023/01/04/webassembly-benchmark-2023/ The (perhaps slightly exaggerated but encouraging to me at least!) money quote there is: > That’s right. The cranelift code generator has become as fast as LLVM. This is extremely impressive considering the fact that cranelift is a relatively young project, written from scratch by a very small (but obviously very talented) team. In practice anywhere from 10%-30% slower maybe is reasonable to expect. Compiler microbenchmarks are interesting because they're very "quantized": for any particular benchmark, often either you get the right transforms and achieve the correct optimized inner loop, or you don't. So the game is about getting more and more cases right and we're slowly getting there. (disclosure: I was tech lead of Cranelift in 2020-2022)