linux-kernel - [PATCHv4 08/13] Documentation/ABI: Add node performance attributes

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Message-Id: <20190116175804.30196-9-keith.busch@intel.com>
Date:   Wed, 16 Jan 2019 10:57:59 -0700
From:   Keith Busch <keith.busch@...el.com>
To:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-mm@...ck.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rafael@...nel.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Keith Busch <keith.busch@...el.com>
Subject: [PATCHv4 08/13] Documentation/ABI: Add node performance attributes

Add descriptions for memory class initiator performance access attributes.

Signed-off-by: Keith Busch <keith.busch@...el.com>
---
 Documentation/ABI/stable/sysfs-devices-node | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node
index a9c47b4b0eee..2217557f29d3 100644
--- a/Documentation/ABI/stable/sysfs-devices-node
+++ b/Documentation/ABI/stable/sysfs-devices-node
@@ -114,3 +114,31 @@ Description:
 		The node list of memory targets that this initiator node has
 		class "Y" access. Memory accesses from this node to nodes not
 		in this list may have differet performance.
+
+What:		/sys/devices/system/node/nodeX/classY/read_bandwidth
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		This node's read bandwidth in MB/s available to memory
+		initiators in nodes found in this class's initiators_nodelist.
+
+What:		/sys/devices/system/node/nodeX/classY/read_latency
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		This node's read latency in nanoseconds available to memory
+		initiators in nodes found in this class's initiators_nodelist.
+
+What:		/sys/devices/system/node/nodeX/classY/write_bandwidth
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		This node's write bandwidth in MB/s available to memory
+		initiators in nodes found in this class's initiators_nodelist.
+
+What:		/sys/devices/system/node/nodeX/classY/write_latency
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		This node's write latency in nanoseconds available to memory
+		initiators in nodes found in this class's initiators_nodelist.
-- 
2.14.4