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authorSeongJae Park <sj@kernel.org>2023-05-25 21:43:09 +0000
committerAndrew Morton <akpm@linux-foundation.org>2023-06-09 16:25:47 -0700
commit69e7b88cea29f10bb8707f4056cba1e2d04cb894 (patch)
tree11cdeb11b94c28d1914a77ed25a4bb3748bf8e02 /Documentation
parente168962dbf7f0a6aba26174b3b09d0c313c6f7f5 (diff)
downloadlwn-69e7b88cea29f10bb8707f4056cba1e2d04cb894.tar.gz
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Docs/mm/damon/design: rewrite configurable layers
The 'Configurable Operations Set' section is a little bit outdated. Update the text. Link: https://lkml.kernel.org/r/20230525214314.5204-6-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/mm/damon/design.rst29
1 files changed, 14 insertions, 15 deletions
diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst
index eaf52f3a9144..4a22bab124cf 100644
--- a/Documentation/mm/damon/design.rst
+++ b/Documentation/mm/damon/design.rst
@@ -22,24 +22,23 @@ DAMON subsystem is configured with three layers including
Configurable Operations Set
---------------------------
-DAMON provides data access monitoring functionality while making the accuracy
-and the overhead controllable. The fundamental access monitorings require
-primitives that dependent on and optimized for the target address space. On
-the other hand, the accuracy and overhead tradeoff mechanism, which is the core
-of DAMON, is in the pure logic space. DAMON separates the two parts in
-different layers and defines its interface to allow various low level
-primitives implementations configurable with the core logic. We call the low
-level primitives implementations monitoring operations.
-
-Due to this separated design and the configurable interface, users can extend
-DAMON for any address space by configuring the core logics with appropriate
-monitoring operations. If appropriate one is not provided, users can implement
-the operations on their own.
+For data access monitoring and additional low level work, DAMON needs a set of
+implementations for specific operations that are dependent on and optimized for
+the given target address space. On the other hand, the accuracy and overhead
+tradeoff mechanism, which is the core logic of DAMON, is in the pure logic
+space. DAMON separates the two parts in different layers, namely DAMON
+Operations Set and DAMON Core Logics Layers, respectively. It further defines
+the interface between the layers to allow various operations sets to be
+configured with the core logic.
+
+Due to this design, users can extend DAMON for any address space by configuring
+the core logic to use the appropriate operations set. If any appropriate set
+is unavailable, users can implement one on their own.
For example, physical memory, virtual memory, swap space, those for specific
processes, NUMA nodes, files, and backing memory devices would be supportable.
-Also, if some architectures or devices support special optimized access check
-primitives, those will be easily configurable.
+Also, if some architectures or devices supporting special optimized access
+check primitives, those will be easily configurable.
Operations Set Layer