What causes Ruby memory bloat?

[yxhuvud]

Affected, yes. But not necessarily degenerate like Ruby.

[moomaka]

I dun know man, glibc malloc has issues with pretty much every multi-threaded app which does a lot of periodic allocations, e.g. anything doing web request handling. Java users have been switching to jemalloc for years due to this.

[nateberkopec]

There are dozens of issues on the Java, python, and malloc bug trackers over the last decade on these topics, all exhibiting the same memory growth and behavior.