[indygreg2]

The criticisms about musl's memory allocator being slower than glibc may be true. However, this specific issue can be resolved by telling the Python interpreter to use e.g. jemalloc as its allocator instead of the system allocator.

Unfortunately, this requires building a custom binary linking jemalloc and calling into Python C APIs to configure the embedded interpreter and that's probably prohibitively too much effort for many users, who view the Python interpreter as a pre-built black box and therefore see musl's allocator as an unavoidable constant. Fortunately, tools like PyOxidizer exist to make this easier. (PyOxidizer supports using jemalloc as the allocator with a 1 line change and jemalloc can deliver even more performance than glib'c allocator.)

[shawn-butler]

raw_allocator (string)

Which memory allocator to use for the PYMEM_DOMAIN_RAW allocator. Values can be jemalloc, rust, or system.

Important: the rust crate is not recommended because it introduces performance overhead.

From the docucmentation