Cargo Features

[dependencies]
jindex = { version = "0.10.0", default-features = false, features = ["jemalloc"] }
default = jemalloc

The jemalloc feature is set by default whenever jindex is added without default-features = false somewhere in the dependency tree.

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

jemalloc default

Enables tikv-jemallocator