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| -rw-r--r-- | mm/damon/Kconfig | 106 |
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diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig new file mode 100644 index 000000000..7821fcb3f --- /dev/null +++ b/mm/damon/Kconfig @@ -0,0 +1,106 @@ +# SPDX-License-Identifier: GPL-2.0-only + +menu "Data Access Monitoring" + +config DAMON + bool "DAMON: Data Access Monitoring Framework" + help + This builds a framework that allows kernel subsystems to monitor + access frequency of each memory region. The information can be useful + for performance-centric DRAM level memory management. + + See https://damonitor.github.io/doc/html/latest-damon/index.html for + more information. + +config DAMON_KUNIT_TEST + bool "Test for damon" if !KUNIT_ALL_TESTS + depends on DAMON && KUNIT=y + default KUNIT_ALL_TESTS + help + This builds the DAMON Kunit test suite. + + For more information on KUnit and unit tests in general, please refer + to the KUnit documentation. + + If unsure, say N. + +config DAMON_VADDR + bool "Data access monitoring operations for virtual address spaces" + depends on DAMON && MMU + select PAGE_IDLE_FLAG + help + This builds the default data access monitoring operations for DAMON + that work for virtual address spaces. + +config DAMON_PADDR + bool "Data access monitoring operations for the physical address space" + depends on DAMON && MMU + select PAGE_IDLE_FLAG + help + This builds the default data access monitoring operations for DAMON + that works for the physical address space. + +config DAMON_VADDR_KUNIT_TEST + bool "Test for DAMON operations" if !KUNIT_ALL_TESTS + depends on DAMON_VADDR && KUNIT=y + default KUNIT_ALL_TESTS + help + This builds the DAMON virtual addresses operations Kunit test suite. + + For more information on KUnit and unit tests in general, please refer + to the KUnit documentation. + + If unsure, say N. + +config DAMON_SYSFS + bool "DAMON sysfs interface" + depends on DAMON && SYSFS + help + This builds the sysfs interface for DAMON. The user space can use + the interface for arbitrary data access monitoring. + +config DAMON_DBGFS + bool "DAMON debugfs interface" + depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS + help + This builds the debugfs interface for DAMON. The user space admins + can use the interface for arbitrary data access monitoring. + + If unsure, say N. + + This will be removed after >5.15.y LTS kernel is released, so users + should move to the sysfs interface (DAMON_SYSFS). + +config DAMON_DBGFS_KUNIT_TEST + bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS + depends on DAMON_DBGFS && KUNIT=y + default KUNIT_ALL_TESTS + help + This builds the DAMON debugfs interface Kunit test suite. + + For more information on KUnit and unit tests in general, please refer + to the KUnit documentation. + + If unsure, say N. + +config DAMON_RECLAIM + bool "Build DAMON-based reclaim (DAMON_RECLAIM)" + depends on DAMON_PADDR + help + This builds the DAMON-based reclamation subsystem. It finds pages + that not accessed for a long time (cold) using DAMON and reclaim + those. + + This is suggested to be used as a proactive and lightweight + reclamation under light memory pressure, while the traditional page + scanning-based reclamation is used for heavy pressure. + +config DAMON_LRU_SORT + bool "Build DAMON-based LRU-lists sorting (DAMON_LRU_SORT)" + depends on DAMON_PADDR + help + This builds the DAMON-based LRU-lists sorting subsystem. It tries to + protect frequently accessed (hot) pages while rarely accessed (cold) + pages reclaimed first under memory pressure. + +endmenu |