Overview router AP2-189
memory

Graphs in same category
cpu swap load memory interrupts irqstats

memory • system

Graph Information

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

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