Overview munin-monitoring.org demo.munin-monitoring.org

Graphs in same category
irqstats procfs processes iostat ios iostat df inode postgres locks ALL postgres size ALL postgres checkpoints postgres connections munin postgres transactions munin postgres autovacuum postgres locks munin accounts postgres connections ALL postgres users postgres cache ALL postgres querylength munin postgres xlog postgres scans munin threads df postgres querylength ALL df abs postgres tuples munin postgres transactions ALL proc pri vmstat postgres size munin postgres cache munin postgres bgwriter postgres connections db diskstats procsys memsimple memory

memsimple • other

Graph Information

Field Internal name Type Warn Crit Info
active active gauge     Memory recently used. Not reclaimed unless absolutely necessary.
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.
buffers buffers gauge     Block device (e.g. harddisk) cache. Also where "dirty" blocks are stored until written.
slab_cache slab gauge     Memory used by the kernel (major users are caches like inode, dentry, etc).
inactive inactive gauge     Memory not currently used.
cache cached gauge     Parked file data (file content) cache.
committed committed gauge     The amount of memory allocated to programs. Overcommitting is normal, but may indicate memory leaks.
swap swap gauge     Swap space used.
mapped mapped gauge     All mmap()ed pages.
vmalloc_used vmalloc_used gauge     'VMalloc' (kernel) memory used
page_tables page_tables gauge     Memory used to map between virtual and physical memory addresses.
apps apps gauge     Memory used by user-space applications.
unused free gauge     Wasted memory. Memory that is not used for anything at all.

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