[Linux Memory]slab Dispenser Learning Note (ii)--slab coloring

Slab Coloring Principle

Slab principle, CPU cache

One, slab coloring principle

Slab allocator uses a lot of cache, each cache contains a lot of slab, each slab a lot of objects, each slab the head to manage the objects in the slab (such as which objects have been used, which objects have not been used, etc.), At the beginning and end of each object in the slab, there is a specific partition populated with specific data, so that if the data and pre-populated non-conformance can prove that the memory area has been incorrectly modified, the individual slab members of the cache will specify a different offset in order to locate it in different cache rows. When assigning and releasing slab, the object is populated with a predefined pattern.

[Linux Memory]slab Dispenser Learning Note (ii)--slab coloring