diff --git a/Doc/library/functools.rst b/Doc/library/functools.rst index 1b0d82a4bf3..f5c6608e1d4 100644 --- a/Doc/library/functools.rst +++ b/Doc/library/functools.rst @@ -49,8 +49,9 @@ The :mod:`functools` module defines the following functions: Since a dictionary is used to cache results, the positional and keyword arguments to the function must be hashable. - If *maxsize* is set to None, the LRU feature is disabled and the cache - can grow without bound. + If *maxsize* is set to None, the LRU feature is disabled and the cache can + grow without bound. The LRU feature performs best when *maxsize* is a + power-of-two. If *typed* is set to True, function arguments of different types will be cached separately. For example, ``f(3)`` and ``f(3.0)`` will be treated