summaryrefslogtreecommitdiffstats
path: root/mm/damon/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--mm/damon/Kconfig106
1 files changed, 106 insertions, 0 deletions
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