Overview router AP1-90
memory

Graphs in same category
memory load irqstats interrupts swap cpu

memory • system

Graph Information

Field Internal name Type Warn Crit Info
cache cached gauge     Parked file data (file content) cache.
swap swap gauge     Swap space used.
committed committed gauge     The amount of memory that would be used if all the memory that's been allocated were to be used.
apps apps gauge     Memory used by user-space applications.
mapped mapped gauge     All mmap()ed pages.
inactive inactive gauge     Memory not currently used.
vmalloc_used vmalloc_used gauge     Virtual memory used by the kernel (used when the memory does not have to be physically contigious).
page_tables page_tables gauge     Memory used to map between virtual and physical memory addresses.\n
buffers buffers gauge     Block device (e.g. harddisk) cache. Also where "dirty" blocks are stored until written.
swap_cache swap_cache gauge     A piece of memory that keeps track of pages that have been fetched from swap but not yet been modified.
active active gauge     Memory recently used. Not reclaimed unless absolutely necessary.
slab_cache slab gauge     Memory used by the kernel (major users are caches like inode, dentry, etc).
unused free gauge     Wasted memory. Memory that is not used for anything at all.

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