Go to file
SeongJae Park 306abb63a8 selftests/damon: implement a python module for test-purpose DAMON sysfs controls
Patch series "selftests/damon: add Python-written DAMON functionality
tests", v2.

DAMON exports most of its functionality via its sysfs interface.  Hence
most DAMON functionality tests could be implemented using the interface. 
However, because the interfaces require simple but multiple operations for
many controls, writing all such tests from the scratch could be repetitive
and time consuming.

Implement a minimum DAMON sysfs control module, and a couple of DAMON
functionality tests using the control module.  The first test is for
ensuring minimum accuracy of data access monitoring, and the second test
is for finding if a previously found and fixed bug is introduced again.

Note that the DAMON sysfs control module is only for avoiding duplicating
code in tests.  For convenient and general control of DAMON, users should
use DAMON user-space tools that developed for the purpose, such as
damo[1].

[1] https://github.com/damonitor/damo

Patches Sequence
----------------

This patchset is constructed with five patches.  The first three patches
implement a Python-written test implementation-purpose DAMON sysfs control
module.  The implementation is incrementally done in the sequence of the
basic data structure (first patch) first, kdamonds start command (second
patch) next, and finally DAMOS tried bytes update command (third patch).

Then two patches for implementing selftests using the module follows.  The
fourth patch implements a basic functionality test of DAMON for working
set estimation accuracy.  Finally, the fifth patch implements a corner
case test for a previously found bug.


This patch (of 5):

Implement a python module for DAMON sysfs controls.  The module is aimed
to be useful for writing DAMON functionality tests in future. 
Nonetheless, this module is only representing a subset of DAMON sysfs
files.  Following commits will implement more DAMON sysfs controls.

Link: https://lkml.kernel.org/r/20231212194810.54457-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20231212194810.54457-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-12-20 14:48:13 -08:00
arch sync mm-stable with mm-hotfixes-stable to pick up depended-upon changes 2023-12-20 14:47:18 -08:00
block fs: convert error_remove_page to error_remove_folio 2023-12-10 16:51:42 -08:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto This push fixes a regression in ahash and hides the Kconfig sub-options for the jitter RNG. 2023-11-09 17:04:58 -08:00
Documentation mm: thp: introduce multi-size THP sysfs interface 2023-12-20 14:48:12 -08:00
drivers list_lru: allow explicit memcg and NUMA node selection 2023-12-12 10:57:01 -08:00
fs mm: thp: introduce multi-size THP sysfs interface 2023-12-20 14:48:12 -08:00
include mm: thp: support allocation of anonymous multi-size THP 2023-12-20 14:48:12 -08:00
init As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
io_uring io_uring: use fget/fput consistently 2023-11-28 11:56:29 -07:00
ipc Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
kernel sync mm-stable with mm-hotfixes-stable to pick up depended-upon changes 2023-12-20 14:47:18 -08:00
lib maple_tree: fix typos/spellos etc 2023-12-20 14:48:12 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: thp: support allocation of anonymous multi-size THP 2023-12-20 14:48:12 -08:00
net wireless fixes: 2023-11-29 19:43:34 -08:00
rust Kbuild updates for v6.7 2023-11-04 08:07:19 -10:00
samples samples/cgroup: introduce memcg memory.events listener 2023-12-10 16:51:54 -08:00
scripts Merge branch 'master' into mm-hotfixes-stable 2023-12-06 17:03:50 -08:00
security + Features 2023-11-03 09:48:17 -10:00
sound ALSA: hda: Disable power-save on KONTRON SinglePC 2023-11-30 16:14:21 +01:00
tools selftests/damon: implement a python module for test-purpose DAMON sysfs controls 2023-12-20 14:48:13 -08:00
usr arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
virt ARM: 2023-09-07 13:52:20 -07:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
.mailmap mailmap: add an old address for Naoya Horiguchi 2023-12-20 13:46:20 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: drop Antti Palosaari 2023-12-06 16:12:49 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS samples: introduce new samples subdir for cgroup 2023-12-10 16:51:54 -08:00
Makefile Linux 6.7-rc4 2023-12-03 18:52:56 +09:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.