[munin-users] negative apps values in memory plugin with 2.6.15 kernels

[Andre T. <an...@to...>]

The apps value in the memory plugin is negative on both 2.6.15-rc1 and 
2.6.15-rc5 kernels here. The kernel is 64bit (amd64).

I'm not on the list, so please keep me in CC on further discussion.

> pelle:/etc/munin/plugins# ./memory
> slab.value 92106752
> swap_cache.value 0
> page_tables.value 4411392
> vmalloc_used.value 269664256
> apps.value -176783360
> free.value 259117056
> buffers.value 48553984
> cached.value 538529792
> swap.value 917504
> committed.value 489099264
> mapped.value 92749824
> active.value 492441600
> inactive.value 172609536
> 
> pelle:/etc/munin/plugins# cat /proc/meminfo
> MemTotal:      1011328 kB
> MemFree:        236208 kB
> Buffers:         47572 kB
> Cached:         538872 kB
> SwapCached:          0 kB
> Active:         490124 kB
> Inactive:       175844 kB
> HighTotal:           0 kB
> HighFree:            0 kB
> LowTotal:      1011328 kB
> LowFree:        236208 kB
> SwapTotal:     1048568 kB
> SwapFree:      1047672 kB
> Dirty:           36980 kB
> Writeback:           0 kB
> Mapped:          95564 kB
> Slab:            89888 kB
> CommitLimit:   1554232 kB
> Committed_AS:   483816 kB
> PageTables:       4548 kB
> VmallocTotal: 34359738367 kB
> VmallocUsed:    263344 kB
> VmallocChunk: 34359475007 kB
> 
> 
> pelle:/etc/munin/plugins# ./memory config
> graph_args --base 1024 -l 0 --vertical-label Bytes --upper-limit 1035599872
> graph_title Memory usage
> graph_category system
> graph_info This graph shows what the machine uses its memory for.
> graph_order apps page_tables swap_cache vmalloc_used slab cached buffers free swap
> apps.label apps
> apps.draw AREA
> apps.info Memory used by user-space applications.
> buffers.label buffers
> buffers.draw STACK
> buffers.info Block device (e.g. harddisk) cache. Also where "dirty" blocks are stored until written.
> swap.label swap
> swap.draw STACK
> swap.info Swap space used.
> cached.label cache
> cached.draw STACK
> cached.info Parked file data (file content) cache.
> free.label unused
> free.draw STACK
> free.info Wasted memory. Memory that is not used for anything at all.
> slab.label slab_cache
> slab.draw STACK
> slab.info Memory used by the kernel (major users are caches like inode, dentry, etc).
> swap_cache.label swap_cache
> swap_cache.draw STACK
> swap_cache.info A piece of memory that keeps track of pages that have been fetched from swap but not yet been modified.
> page_tables.label page_tables
> page_tables.draw STACK
> page_tables.info Memory used to map between virtual and physical memory addresses.
> vmalloc_used.label vmalloc_used
> vmalloc_used.draw STACK
> vmalloc_used.info Virtual memory used by the kernel (used when the memory does not have to be physically contigious).
> committed.label committed
> committed.draw LINE2
> committed.warn 2109333504
> committed.info The amount of memory that would be used if all the memory that's been allocated were to be used.
> mapped.label mapped
> mapped.draw LINE2
> mapped.info All mmap()ed pages.
> active.label active
> active.draw LINE2
> active.info Memory recently used. Not reclaimed unless absolutely necessary.
> inactive.label inactive
> inactive.draw LINE2
> inactive.info Memory not currently used.
> 
>