36 lines
1.3 KiB
ReStructuredText
36 lines
1.3 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0
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==========================
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DAMON: Data Access MONitor
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==========================
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DAMON is a Linux kernel subsystem that provides a framework for data access
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monitoring and the monitoring results based system operations. The core
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monitoring mechanisms of DAMON (refer to :doc:`design` for the detail) make it
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- *accurate* (the monitoring output is useful enough for DRAM level memory
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management; It might not appropriate for CPU Cache levels, though),
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- *light-weight* (the monitoring overhead is low enough to be applied online),
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and
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- *scalable* (the upper-bound of the overhead is in constant range regardless
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of the size of target workloads).
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Using this framework, therefore, the kernel can operate system in an
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access-aware fashion. Because the features are also exposed to the user space,
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users who have special information about their workloads can write personalized
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applications for better understanding and optimizations of their workloads and
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systems.
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For easier development of such systems, DAMON provides a feature called DAMOS
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(DAMon-based Operation Schemes) in addition to the monitoring. Using the
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feature, DAMON users in both kernel and user spaces can do access-aware system
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operations with no code but simple configurations.
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.. toctree::
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:maxdepth: 2
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faq
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design
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api
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maintainer-profile
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