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diff --git a/Documentation/mm/damon/index.rst b/Documentation/mm/damon/index.rst new file mode 100644 index 000000000..5e0a50583 --- /dev/null +++ b/Documentation/mm/damon/index.rst @@ -0,0 +1,35 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================== +DAMON: Data Access MONitor +========================== + +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), + - *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 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 + + faq + design + api + maintainer-profile |