From b88473f73e6d7b6af9cfc4ecc349d82c75d9a6af Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Wed, 30 Apr 2008 00:54:39 -0700 Subject: [PATCH] mm: document missing fields for /proc/meminfo A few fields in /proc/meminfo were not documented. Fix. Signed-off-by: Miklos Szeredi Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/proc.txt | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 2a99116..dbc3c6a 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -463,11 +463,17 @@ SwapTotal: 0 kB SwapFree: 0 kB Dirty: 968 kB Writeback: 0 kB +AnonPages: 861800 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 Committed_AS: 100056 kB -PageTables: 24448 kB VmallocTotal: 112216 kB VmallocUsed: 428 kB VmallocChunk: 111088 kB @@ -503,8 +509,17 @@ VmallocChunk: 111088 kB on 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 + AnonPages: Non-file backed pages mapped into userspace page tables Mapped: files which have been mmaped, such as libraries 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'), this is the total amount of memory currently available 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 to guarantee that processes will not fail due to lack of 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 VmallocUsed: amount of vmalloc area which is used VmallocChunk: largest contigious block of vmalloc area which is free -- 1.8.2.3