Cargo Features

jemallocator-global has no features set by default.

[dependencies]
jemallocator-global = { version = "0.3.2", features = ["force_global_jemalloc"] }
force_global_jemalloc = jemallocator

Unconditionally sets jemalloc as the global allocator:

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features.

jemallocator force_global_jemalloc?

Enables default (background_threads_runtime_support) of jemallocator ^0.3.2