| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame^] | 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/hugepages/hugepages-<size>/ |
| 89 | Date: December 2009 |
| 90 | Contact: Lee Schermerhorn <lee.schermerhorn@hp.com> |
| 91 | Description: |
| 92 | The node's huge page size control/query attributes. |
| 93 | See Documentation/admin-guide/mm/hugetlbpage.rst |