CDANG

Resource Map Allocator.
Simple Power-of-Two Free Lists.
The McKusick-Karels Allocator.
The Buddy System.
The SVR4 Lazy Buddy Algorithm.
The MACH-OSF/1 Zone Allocator.
A Hierarchical Allocator for Multiprocessors.
The Solaris 2.4 Slab Allocator.

Linux : Buddy, Slab
4.4BSD : McKusick-Karels Allocator