diff options
Diffstat (limited to 'Documentation/mm/damon/index.rst')
| -rw-r--r-- | Documentation/mm/damon/index.rst | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/mm/damon/index.rst b/Documentation/mm/damon/index.rst new file mode 100644 index 000000000000..31c1fa955b3d --- /dev/null +++ b/Documentation/mm/damon/index.rst @@ -0,0 +1,45 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================================================================ +DAMON: Data Access MONitoring and Access-aware System Operations +================================================================ + +DAMON is a Linux kernel subsystem that provides a framework for data access +monitoring and the monitoring results based system operations. The core +monitoring :ref:`mechanisms <damon_design_monitoring>` of DAMON make it + + - *accurate* (the monitoring output is useful enough for DRAM level memory + management; It might not appropriate for CPU Cache levels, though), + - *light-weight* (the monitoring overhead is low enough to be applied online), + and + - *scalable* (the upper-bound of the overhead is in constant range regardless + of the size of target workloads). + +Using this framework, therefore, the kernel can operate system in an +access-aware fashion. Because the features are also exposed to the :doc:`user +space </admin-guide/mm/damon/index>`, 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 +:ref:`DAMOS <damon_design_damos>` (DAMon-based Operation Schemes) in addition +to the monitoring. Using the feature, DAMON users in both kernel and :doc:`user +spaces </admin-guide/mm/damon/index>` can do access-aware system operations +with no code but simple configurations. + +.. toctree:: + :maxdepth: 2 + + faq + design + api + maintainer-profile + +To utilize and control DAMON from the user-space, please refer to the +administration :doc:`guide </admin-guide/mm/damon/index>`. + +If you prefer academic papers for reading and citations, please use the papers +from `HPDC'22 <https://dl.acm.org/doi/abs/10.1145/3502181.3531466>`_ and +`Middleware19 Industry <https://dl.acm.org/doi/abs/10.1145/3366626.3368125>`_ . +Note that those cover DAMON implementations in Linux v5.16 and v5.15, +respectively. |