kernel通过slab来分配小容量的内存
它引入了cache,slab,object等一系列概念
通过slabtop命令可以查看
由于对列内容不清楚,查询后归纳如下:
OBJS — The total number of objects (memory blocks), including those in use (allocated), and some spares not in use.
ACTIVE — The number of objects (memory blocks) that are in use (allocated).
USE — Percentage of total objects that are active. ((ACTIVE/OBJS)(100))
OBJ SIZE — The size of the objects.
SLABS — The total number of slabs.
OBJ/SLAB — The number of objects that fit into a slab.
CACHE SIZE — The cache size of the slab.
NAME — The name of the slab.