[syrusakbary]

Hi, I'm Syrus from Wasmer.

Have you tried with the llvm backend? I believe the results might be even better there!

  $ time ./wasmer run --llvm fill_buffer.wasm -i fillBufferWithSIMD 1000

[fwsgonzo]

$ time ./wasmer fill_buffer.wasm --llvm -i fillBufferWithSIMD 1000

real 0m5,233s

It seems to be a 25% longer run-time with LLVM backend. I did not know about that option! Very interesting.

[syrusakbary]

It's strange that llvm runs slower (perhaps the of the 5s some of that is spent being compiled).

Could you share the fill_buffer.wasm (or the WAT file) so I can do some tests? Thanks!

[fwsgonzo]

Here you go: https://gist.github.com/fwsGonzo/2968cf0bc3364eb1ff0e0500569...

Hopefully I did not mess anything up!