Based on kernel version 3.9. Page generated on 2013-05-02 22:52 EST.
1 What: /sys/devices/system/node/possible 2 Date: October 2002 3 Contact: Linux Memory Management list <linux-mm@kvack.org> 4 Description: 5 Nodes that could be possibly become online at some point. 6 7 What: /sys/devices/system/node/online 8 Date: October 2002 9 Contact: Linux Memory Management list <linux-mm@kvack.org> 10 Description: 11 Nodes that are online. 12 13 What: /sys/devices/system/node/has_normal_memory 14 Date: October 2002 15 Contact: Linux Memory Management list <linux-mm@kvack.org> 16 Description: 17 Nodes that have regular memory. 18 19 What: /sys/devices/system/node/has_cpu 20 Date: October 2002 21 Contact: Linux Memory Management list <linux-mm@kvack.org> 22 Description: 23 Nodes that have one or more CPUs. 24 25 What: /sys/devices/system/node/has_high_memory 26 Date: October 2002 27 Contact: Linux Memory Management list <linux-mm@kvack.org> 28 Description: 29 Nodes that have regular or high memory. 30 Depends on CONFIG_HIGHMEM. 31 32 What: /sys/devices/system/node/nodeX 33 Date: October 2002 34 Contact: Linux Memory Management list <linux-mm@kvack.org> 35 Description: 36 When CONFIG_NUMA is enabled, this is a directory containing 37 information on node X such as what CPUs are local to the 38 node. Each file is detailed next. 39 40 What: /sys/devices/system/node/nodeX/cpumap 41 Date: October 2002 42 Contact: Linux Memory Management list <linux-mm@kvack.org> 43 Description: 44 The node's cpumap. 45 46 What: /sys/devices/system/node/nodeX/cpulist 47 Date: October 2002 48 Contact: Linux Memory Management list <linux-mm@kvack.org> 49 Description: 50 The CPUs associated to the node. 51 52 What: /sys/devices/system/node/nodeX/meminfo 53 Date: October 2002 54 Contact: Linux Memory Management list <linux-mm@kvack.org> 55 Description: 56 Provides information about the node's distribution and memory 57 utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.txt 58 59 What: /sys/devices/system/node/nodeX/numastat 60 Date: October 2002 61 Contact: Linux Memory Management list <linux-mm@kvack.org> 62 Description: 63 The node's hit/miss statistics, in units of pages. 64 See Documentation/numastat.txt 65 66 What: /sys/devices/system/node/nodeX/distance 67 Date: October 2002 68 Contact: Linux Memory Management list <linux-mm@kvack.org> 69 Description: 70 Distance between the node and all the other nodes 71 in the system. 72 73 What: /sys/devices/system/node/nodeX/vmstat 74 Date: October 2002 75 Contact: Linux Memory Management list <linux-mm@kvack.org> 76 Description: 77 The node's zoned virtual memory statistics. 78 This is a superset of numastat. 79 80 What: /sys/devices/system/node/nodeX/compact 81 Date: February 2010 82 Contact: Mel Gorman <mel@csn.ul.ie> 83 Description: 84 When this file is written to, all memory within that node 85 will be compacted. When it completes, memory will be freed 86 into blocks which have as many contiguous pages as possible 87 88 What: /sys/devices/system/node/nodeX/scan_unevictable_pages 89 Date: October 2008 90 Contact: Lee Schermerhorn <lee.schermerhorn@hp.com> 91 Description: 92 When set, it triggers scanning the node's unevictable lists 93 and move any pages that have become evictable onto the respective 94 zone's inactive list. See mm/vmscan.c 95 96 What: /sys/devices/system/node/nodeX/hugepages/hugepages-<size>/ 97 Date: December 2009 98 Contact: Lee Schermerhorn <lee.schermerhorn@hp.com> 99 Description: 100 The node's huge page size control/query attributes. 101 See Documentation/vm/hugetlbpage.tx