[nevon]

I very recently used jemalloc to resolve a memory fragmentation issue that caused a service to OOM every few days. While jemalloc as it is will continue to work, same as it does today, I wonder what allocator I should reach for in the future. Does anyone have any experiences to share regarding tcmalloc or other allocators that aim to perform better than stock glibc?

[beyonddream]

Try mimalloc. I have prototyped a feature on top of mimalloc and while effort was a dead end, the code (this was around 2020) was nicely written and well maintained and it was fun to hack on it. When I swapped jemalloc in our system with mimalloc, it was on par if not better when it comes to fragmentation growth control and heap usage perspective.

[sanxiyn]

mimalloc is a good choice. CPython recently switched to mimalloc.

[kev009]

snmalloc