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Amex's FaaS Uses WebAssembly Instead of Containers

3 points| farmerbb | 1 year ago |thenewstack.io

2 comments

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seanmceligot|1 year ago

"A key reason behind Amex's adoption of WebAssembly is that WebAssembly demonstrated superior performance metrics compared to containers."

Wasm faster than containers? I guess they mean under there specific circumstances. Rust or C on a Linux container running machine code should definitely be faster than Wasm bytecode.

giorgioz|1 year ago

I wonder what source language they are using that will be compiled to WebAssembly. I also wonder how they built their FaaS infrastructure. A possibility is that they used the open source Firecracker (written in Rust) which powers AWS Lambda.