diff options
| author | Davidlohr Bueso <davidlohr.bueso@hp.com> | 2012-12-18 14:23:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 15:02:15 -0800 |
| commit | 5bbe1ec11fcf08af086ae214cdd4f4da0f25ca46 (patch) | |
| tree | 1294c0826396b9a8aed44acfb2a22b2f3ad846d6 /Documentation/ABI/stable | |
| parent | 5413dfba88d6f6090c8cdf181ab9172d24752f8f (diff) | |
Documentation: ABI: /sys/devices/system/node/
Describe NUMA node sysfs files/attributes.
Note that for the specific dates and contacts I couldn't find,
I left it as default for Oct 2002 and linux-mm.
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/ABI/stable')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-devices-node | 96 |
1 files changed, 95 insertions, 1 deletions
diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node index 49b82cad700..ce259c13c36 100644 --- a/Documentation/ABI/stable/sysfs-devices-node +++ b/Documentation/ABI/stable/sysfs-devices-node @@ -1,7 +1,101 @@ +What: /sys/devices/system/node/possible +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Nodes that could be possibly become online at some point. + +What: /sys/devices/system/node/online +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Nodes that are online. + +What: /sys/devices/system/node/has_normal_memory +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Nodes that have regular memory. + +What: /sys/devices/system/node/has_cpu +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Nodes that have one or more CPUs. + +What: /sys/devices/system/node/has_high_memory +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Nodes that have regular or high memory. + Depends on CONFIG_HIGHMEM. + What: /sys/devices/system/node/nodeX Date: October 2002 Contact: Linux Memory Management list <linux-mm@kvack.org> Description: When CONFIG_NUMA is enabled, this is a directory containing information on node X such as what CPUs are local to the - node. + node. Each file is detailed next. + +What: /sys/devices/system/node/nodeX/cpumap +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + The node's cpumap. + +What: /sys/devices/system/node/nodeX/cpulist +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + The CPUs associated to the node. + +What: /sys/devices/system/node/nodeX/meminfo +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Provides information about the node's distribution and memory + utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.txt + +What: /sys/devices/system/node/nodeX/numastat +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + The node's hit/miss statistics, in units of pages. + See Documentation/numastat.txt + +What: /sys/devices/system/node/nodeX/distance +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Distance between the node and all the other nodes + in the system. + +What: /sys/devices/system/node/nodeX/vmstat +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + The node's zoned virtual memory statistics. + This is a superset of numastat. + +What: /sys/devices/system/node/nodeX/compact +Date: February 2010 +Contact: Mel Gorman <mel@csn.ul.ie> +Description: + When this file is written to, all memory within that node + will be compacted. When it completes, memory will be freed + into blocks which have as many contiguous pages as possible + +What: /sys/devices/system/node/nodeX/scan_unevictable_pages +Date: October 2008 +Contact: Lee Schermerhorn <lee.schermerhorn@hp.com> +Description: + When set, it triggers scanning the node's unevictable lists + and move any pages that have become evictable onto the respective + zone's inactive list. See mm/vmscan.c + +What: /sys/devices/system/node/nodeX/hugepages/hugepages-<size>/ +Date: December 2009 +Contact: Lee Schermerhorn <lee.schermerhorn@hp.com> +Description: + The node's huge page size control/query attributes. + See Documentation/vm/hugetlbpage.txt
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