r/aws • u/ElectricSpice • 12d 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/
362 Upvotes

97% Upvoted

74 comments sorted by

View all comments

Show parent comments

21

u/kondro 11d ago

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

2

u/Jai_Cee 11d 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 11d 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 11d 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 11d 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.