diff options
Diffstat (limited to 'Documentation/ABI/stable/sysfs-devices-node')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-devices-node | 151 |
1 files changed, 148 insertions, 3 deletions
diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node index 5b2d0f08867c..2d0e023f22a7 100644 --- a/Documentation/ABI/stable/sysfs-devices-node +++ b/Documentation/ABI/stable/sysfs-devices-node @@ -54,14 +54,14 @@ 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 + utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.rst 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 + See Documentation/admin-guide/numastat.rst What: /sys/devices/system/node/nodeX/distance Date: October 2002 @@ -90,4 +90,149 @@ 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
\ No newline at end of file + See Documentation/admin-guide/mm/hugetlbpage.rst + +What: /sys/devices/system/node/nodeX/accessY/ +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The node's relationship to other nodes for access class "Y". + +What: /sys/devices/system/node/nodeX/accessY/initiators/ +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The directory containing symlinks to memory initiator + nodes that have class "Y" access to this target node's + memory. CPUs and other memory initiators in nodes not in + the list accessing this node's memory may have different + performance. + +What: /sys/devices/system/node/nodeX/accessY/targets/ +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The directory containing symlinks to memory targets that + this initiator node has class "Y" access. + +What: /sys/devices/system/node/nodeX/accessY/initiators/read_bandwidth +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + This node's read bandwidth in MB/s when accessed from + nodes found in this access class's linked initiators. + +What: /sys/devices/system/node/nodeX/accessY/initiators/read_latency +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + This node's read latency in nanoseconds when accessed + from nodes found in this access class's linked initiators. + +What: /sys/devices/system/node/nodeX/accessY/initiators/write_bandwidth +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + This node's write bandwidth in MB/s when accessed from + found in this access class's linked initiators. + +What: /sys/devices/system/node/nodeX/accessY/initiators/write_latency +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + This node's write latency in nanoseconds when access + from nodes found in this class's linked initiators. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/ +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The directory containing attributes for the memory-side cache + level 'Y'. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/indexing +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The caches associativity indexing: 0 for direct mapped, + non-zero if indexed. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/line_size +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The number of bytes accessed from the next cache level on a + cache miss. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/size +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The size of this memory side cache in bytes. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/write_policy +Date: December 2018 +Contact: Keith Busch <keith.busch@intel.com> +Description: + The cache write policy: 0 for write-back, 1 for write-through, + other or unknown. + +What: /sys/devices/system/node/nodeX/memory_side_cache/indexY/address_mode +Date: March 2025 +Contact: Dave Jiang <dave.jiang@intel.com> +Description: + The address mode: 0 for reserved, 1 for extended-linear. + +What: /sys/devices/system/node/nodeX/x86/sgx_total_bytes +Date: November 2021 +Contact: Jarkko Sakkinen <jarkko@kernel.org> +Description: + The total amount of SGX physical memory in bytes. + +What: /sys/devices/system/node/nodeX/memory_failure/total +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@google.com> +Description: + The total number of raw poisoned pages (pages containing + corrupted data due to memory errors) on a NUMA node. + +What: /sys/devices/system/node/nodeX/memory_failure/ignored +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@google.com> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + ignored by memory error recovery attempt, usually because + support for this type of pages is unavailable, and kernel + gives up the recovery. + +What: /sys/devices/system/node/nodeX/memory_failure/failed +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@google.com> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + failed by memory error recovery attempt. This usually means + a key recovery operation failed. + +What: /sys/devices/system/node/nodeX/memory_failure/delayed +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@google.com> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + delayed by memory error recovery attempt. Delayed poisoned + pages usually will be retried by kernel. + +What: /sys/devices/system/node/nodeX/memory_failure/recovered +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@google.com> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + recovered by memory error recovery attempt. + +What: /sys/devices/system/node/nodeX/reclaim +Date: June 2025 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + Perform user-triggered proactive reclaim on a NUMA node. + This interface is equivalent to the memcg variant. + + See Documentation/admin-guide/cgroup-v2.rst |