Read, more on it here. Similarly one may ask, what is slab memory?
Memory Slabs. A memory slab is a kernel object that allows memory blocks to be dynamically allocated from a designated memory region. All memory blocks in a memory slab have a single fixed size, allowing them to be allocated and released efficiently and avoiding memory fragmentation concerns.
Furthermore, what is memory management in Linux? Memory Management. This includes implemnetation of virtual memory and demand paging, memory allocation both for kernel internal structures and user space programms, mapping of files into processes address space and many other cool things. Linux memory management is a complex system with many configurable settings.
Beside above, what is Slabinfo?
/proc/slabinfo gives information about memory usage on the slab level. Linux kernels uses slab pools to manage memory above the page level. Commonly used objects have their own slab pools. ACTIVE — The number of objects (memory blocks) that are in use (allocated).
What is SReclaimable?
It means that SReclaimable is memory that is used by kernel (for example, as a filesystem cache), but should any other need arise, it might be used for other purposes - for example to satisfy memory requests from user applications that cannot be satisfied otherwise, for example by using free ( MemFree ) memory.
