From 692569946fbf56fbb75d85c57679541f9a3550b4 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Tue, 29 May 2012 15:06:45 -0700 Subject: mm: document the meminfo and vmstat fields of relevance to transparent hugepages Update Documentation/vm/transhuge.txt and Documentation/filesystems/proc.txt with some information on monitoring transparent huge page usage and the associated overhead. Signed-off-by: Mel Gorman Signed-off-by: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/proc.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/filesystems/proc.txt') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index ef088e5..912af6c 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -743,6 +743,7 @@ Committed_AS: 100056 kB VmallocTotal: 112216 kB VmallocUsed: 428 kB VmallocChunk: 111088 kB +AnonHugePages: 49152 kB MemTotal: Total usable ram (i.e. physical ram minus a few reserved bits and the kernel binary code) @@ -776,6 +777,7 @@ VmallocChunk: 111088 kB 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 +AnonHugePages: Non-file backed huge 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 -- cgit v1.1