Another profiler for Python which looks interesting.

Mostly about the general approach on how to profile this kind of things. Still a couple of interesting pytest specific tips in here.

Long and nice article about collaborative editing algorithms and their implementation. The problem space is tough, benchmarking is hard, profiling as well and optimizing even more so. Very thorough.

This looks like an interesting full system profiler.

At last some interesting tooling for profiling memory usage of web frontends. Clearly this is very early days though, this will get more interesting as the tooling makes progress. Some of the numbers in the benchmarks they came up with in this article are very scary though.

Interesting use of Rust to optimize an otherwise completely Python base code. This is properly done, first profiling the problematic system finding where the bottleneck is, evaluating other options first, then finally biting the bullet. Leads to a dramatic improvement by just replacing a few lines of Python. This is far from the "let's rewrite everything in Rust" which is a good thing.