SLUB (Unqueued Allocator)

modulename: slub.ko

configname: CONFIG_SLUB

Choose SLAB allocator
└─>SLUB (Unqueued Allocator)
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
SLUB is a slab allocator that minimizes cache line usage
instead of managing queues of cached objects (SLAB approach).
Per cpu caching is realized using slabs of objects instead
of queues of objects. SLUB can use memory efficiently
and has enhanced diagnostics. SLUB is the default choice for
a slab allocator.

source code: