Amount of memory used to cache filesystem data,
including tmpfs and shared memory.
+ slab
+
+ Amount of memory used for storing in-kernel data
+ structures.
+
sock
Amount of memory used in network transmission buffers
on the internal memory management lists used by the
page reclaim algorithm
+ slab_reclaimable
+
+ Part of "slab" that might be reclaimed, such as
+ dentries and inodes.
+
+ slab_unreclaimable
+
+ Part of "slab" that cannot be reclaimed on memory
+ pressure.
+
pgfault
Total number of page faults incurred