This graph shows what the machine uses its memory for. |
|
Field |
Internal name |
Type |
Warn |
Crit |
|
apps |
apps |
gauge |
None |
None |
Memory used by user-space applications. |
swap_cache |
swap_cache |
gauge |
None |
None |
A piece of memory that keeps track of pages that have been fetched from swap but not yet been modified. |
|
cache |
cached |
gauge |
None |
None |
Parked file data (file content) cache. |
buffers |
buffers |
gauge |
None |
None |
Block device (e.g. harddisk) cache. Also where "dirty" blocks are stored until written. |
unused |
free |
gauge |
None |
None |
Wasted memory. Memory that is not used for anything at all. |
|
swap |
swap |
gauge |
None |
None |
Swap space used. |
active |
active |
gauge |
None |
None |
Memory recently used. Not reclaimed unless absolutely necessary. |
inactive |
inactive |
gauge |
None |
None |
Memory not currently used. |