AWS Lambda shows memory peak-usage, but when memory usage hits the limit, breaking down where exactly too much memory is being used might be a very useful things. The runtime is kind of a black box (at least in my understanding), so any telemetry/measurements need to be baked into the function. For this example, I only describe an approach useful for Rust runtime.

The 10x engineer - whole industry was discussing it, laughing at it, learning how to become it quite for some time. Googling “10x engineer” gives tons of content (as probably with any other catch-phrase), including some stuff to watch and read. Quite a lot whas told & written about it, but I feel the World needs one more post on the topic!

Every now and then there is a need to pass arguments to the command-line application. While there are a lot of libraries/frameworks to do that in Java, I still had this feeling “why such an easy thing must be so cumbersome and require so much boilerplate?”.

Building up on my previous posts about MIO-based server and parser combinators, this post is about making a very simple HTTP server capable of running on multiple threads and implementing WebSocket protocol.

One evening I was thinking why don’t I implement throttling dispatcher in Go. I even had to find “The Go Programming Language” book on the shelf, it was waiting for this for more than a year.