xref: /openbmc/linux/Documentation/mm/damon/index.rst (revision 89aba575)
1.. SPDX-License-Identifier: GPL-2.0
2
3==========================
4DAMON: Data Access MONitor
5==========================
6
7DAMON is a data access monitoring framework subsystem for the Linux kernel.
8The core mechanisms of DAMON (refer to :doc:`design` for the detail) make it
9
10 - *accurate* (the monitoring output is useful enough for DRAM level memory
11   management; It might not appropriate for CPU Cache levels, though),
12 - *light-weight* (the monitoring overhead is low enough to be applied online),
13   and
14 - *scalable* (the upper-bound of the overhead is in constant range regardless
15   of the size of target workloads).
16
17Using this framework, therefore, the kernel's memory management mechanisms can
18make advanced decisions.  Experimental memory management optimization works
19that incurring high data accesses monitoring overhead could implemented again.
20In user space, meanwhile, users who have some special workloads can write
21personalized applications for better understanding and optimizations of their
22workloads and systems.
23
24.. toctree::
25   :maxdepth: 2
26
27   faq
28   design
29   api
30