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Docs/mm/damon/index: mention DAMOS on the intro

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What DAMON aims to do is not only access monitoring but efficient and
effective access-aware system operations.  And DAMon-based Operation
Schemes (DAMOS) is the important feature of DAMON for the goal.  Make the
intro of DAMON documentation to emphasize the goal and mention DAMOS.

Link: https://lkml.kernel.org/r/20230110190400.119388-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2023-01-10 19:03:55 +00:00
committed by Andrew Morton
parent 55901e89d2
commit 86834644e3
1 changed files with 13 additions and 8 deletions
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Documentation/mm/damon/index.rst
+13 -8
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@@ -4,8 +4,9 @@
DAMON: Data Access MONitor
==========================
DAMON is a data access monitoring framework subsystem for the Linux kernel.
The core mechanisms of DAMON (refer to :doc:`design` for the detail) make it
DAMON is a Linux kernel subsystem that provides a framework for data access
monitoring and the monitoring results based system operations. The core
monitoring mechanisms of DAMON (refer to :doc:`design` for the detail) make it
- *accurate* (the monitoring output is useful enough for DRAM level memory
management; It might not appropriate for CPU Cache levels, though),
@@ -14,12 +15,16 @@ The core mechanisms of DAMON (refer to :doc:`design` for the detail) make it
- *scalable* (the upper-bound of the overhead is in constant range regardless
of the size of target workloads).
Using this framework, therefore, the kernel's memory management mechanisms can
make advanced decisions. Experimental memory management optimization works
that incurring high data accesses monitoring overhead could implemented again.
In user space, meanwhile, users who have some special workloads can write
personalized applications for better understanding and optimizations of their
workloads and systems.
Using this framework, therefore, the kernel can operate system in an
access-aware fashion. Because the features are also exposed to the user space,
users who have special information about their workloads can write personalized
applications for better understanding and optimizations of their workloads and
systems.
For easier development of such systems, DAMON provides a feature called DAMOS
(DAMon-based Operation Schemes) in addition to the monitoring. Using the
feature, DAMON users in both kernel and user spaces can do access-aware system
operations with no code but simple configurations.
.. toctree::
:maxdepth: 2