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mm: document missing fields for /proc/meminfo

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A few fields in /proc/meminfo were not documented.  Fix.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miklos Szeredi 2008-04-30 00:54:39 -07:00 committed by Linus Torvalds
parent fc3ba692a4
commit b88473f73e
1 changed files with 17 additions and 4 deletions
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21
Documentation/filesystems/proc.txt
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@ -463,11 +463,17 @@ SwapTotal: 0 kB
SwapFree: 0 kB SwapFree: 0 kB
Dirty: 968 kB Dirty: 968 kB
Writeback: 0 kB Writeback: 0 kB
AnonPages: 861800 kB
Mapped: 280372 kB Mapped: 280372 kB
Slab: 684068 kB Slab: 284364 kB
SReclaimable: 159856 kB
SUnreclaim: 124508 kB
PageTables: 24448 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 7669796 kB CommitLimit: 7669796 kB
Committed_AS: 100056 kB Committed_AS: 100056 kB
PageTables: 24448 kB
VmallocTotal: 112216 kB VmallocTotal: 112216 kB
VmallocUsed: 428 kB VmallocUsed: 428 kB
VmallocChunk: 111088 kB VmallocChunk: 111088 kB
@ -503,8 +509,17 @@ VmallocChunk: 111088 kB
on the disk on the disk
Dirty: Memory which is waiting to get written back to the disk Dirty: Memory which is waiting to get written back to the disk
Writeback: Memory which is actively being written back to the disk Writeback: Memory which is actively being written back to the disk
AnonPages: Non-file backed pages mapped into userspace page tables
Mapped: files which have been mmaped, such as libraries Mapped: files which have been mmaped, such as libraries
Slab: in-kernel data structures cache Slab: in-kernel data structures cache
SReclaimable: Part of Slab, that might be reclaimed, such as caches
SUnreclaim: Part of Slab, that cannot be reclaimed on memory pressure
PageTables: amount of memory dedicated to the lowest level of page
tables.
NFS_Unstable: NFS pages sent to the server, but not yet committed to stable
storage
Bounce: Memory used for block device "bounce buffers"
WritebackTmp: Memory used by FUSE for temporary writeback buffers
CommitLimit: Based on the overcommit ratio ('vm.overcommit_ratio'), CommitLimit: Based on the overcommit ratio ('vm.overcommit_ratio'),
this is the total amount of memory currently available to this is the total amount of memory currently available to
be allocated on the system. This limit is only adhered to be allocated on the system. This limit is only adhered to
@ -531,8 +546,6 @@ Committed_AS: The amount of memory presently allocated on the system.
above) will not be permitted. This is useful if one needs above) will not be permitted. This is useful if one needs
to guarantee that processes will not fail due to lack of to guarantee that processes will not fail due to lack of
memory once that memory has been successfully allocated. memory once that memory has been successfully allocated.
PageTables: amount of memory dedicated to the lowest level of page
tables.
VmallocTotal: total size of vmalloc memory area VmallocTotal: total size of vmalloc memory area
VmallocUsed: amount of vmalloc area which is used VmallocUsed: amount of vmalloc area which is used
VmallocChunk: largest contigious block of vmalloc area which is free VmallocChunk: largest contigious block of vmalloc area which is free