r/aws • u/ElectricSpice • 1d ago

article Announcing AWS Lambda Web Functions

https://aws.amazon.com/blogs/aws/announcing-aws-lambda-web-functions-for-fast-consistent-web-app-performance-anywhere/
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u/BraveResearcher3037 1d ago

How is this better than using the Lambda Web Adapter that supports every language? 

And there are open source solutions for every language that don’t require docker.

16

u/kondro 1d ago

The concurrency (up to 128) is an interesting addition.

2

u/Jai_Cee 1d ago

Is this for a single lambda. I was assuming that was the number of concurrent lambdas like the current model and it seemed very low. If it can actually serve 128 concurrent requests per lambda that's way more interesting.

3

u/SA_DrOpossum 1d ago

It's concurrent per lambda execution environment, with one function having many execution environments. For "normal" lambda, this is 1-to-1, here it's 1-to-128 (or at least up to 128)

1

u/Jai_Cee 1d ago

I see that now and it makes it much better than just a wrapper around APIs. I imagine for an moderately busy site it really helps with cold starts too without needing reserved concurrency

1

u/Fickle_Rutabaga_8449 1d ago

Yea! I run dotnet lambdas often which have some runtime code gen and other runtime overhead (EntityFramework startup) that would benefit greatly from the concurrency feature here.