So true. Inside Google, it used to be the case that every N months someone had to figure how to build their Python daemon with Blaze (Bazel) using tcmalloc. It

So true. Inside Google, it used to be the case that every N months someone had to figure how to build their Python daemon with Blaze (Bazel) using tcmalloc. It was painful and I hope it's easier nowadays. Without it, after a few weeks you'd see memory leaks whose actual root cause was fragmentation. I can't remember how they interacted with the allocator in Python, but I always suspected that heavy use of protocol buffers made the problem a lot more acute.