linux-toradex.git/tools/testing/selftests/damon/Makefile, branch master Linux kernel for Apalis and Colibri modules selftests/damon: fix damon selftests by installing _common.sh 2025-09-13T23:54:59+00:00 Alexandre Ghiti alexghiti@rivosinc.com 2025-08-12T08:12:11+00:00 9d246d7410c9c4187e37cc3bfd1284d06b697566 _common.sh was recently introduced but is not installed and then triggers an error when trying to run the damon selftests: selftests: damon: sysfs.sh ./sysfs.sh: line 4: _common.sh: No such file or directory Install this file to avoid this error. Link: https://lkml.kernel.org/r/20250812-alex-fixes_manual-v1-1-c4e99b1f80e4@rivosinc.com Fixes: 511914506d19 ("selftests/damon: introduce _common.sh to host shared function") Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Tested-by: Sang-Heon Jeon <ekffu200098@gmail.com> Reviewed-by: SeongJae Park <sj@kernel.org> Tested-by: Enze Li <lienze@kylinos.cn> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
_common.sh was recently introduced but is not installed and then triggers
an error when trying to run the damon selftests:

selftests: damon: sysfs.sh
./sysfs.sh: line 4: _common.sh: No such file or directory

Install this file to avoid this error.

Link: https://lkml.kernel.org/r/20250812-alex-fixes_manual-v1-1-c4e99b1f80e4@rivosinc.com
Fixes: 511914506d19 ("selftests/damon: introduce _common.sh to host shared function")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Tested-by: Enze Li <lienze@kylinos.cn>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: test no-op commit broke DAMON status 2025-09-13T23:54:55+00:00 Sang-Heon Jeon ekffu200098@gmail.com 2025-08-10T12:43:54+00:00 10725cd2b09afe512ff60df651b9dd0e11720801 Add test to verify that DAMON status is not changed after a no-op commit. [ekffu200098@gmail.com: change wrong json.dump usage to json.dumps] Link: https://lkml.kernel.org/r/20250816014033.190451-1-ekffu200098@gmail.com Link: https://lkml.kernel.org/r/20250810124354.16456-1-ekffu200098@gmail.com Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Reviewed-by: SeongJae Park <sj@kernel.org> Cc: Honggyu Kim <honggyu.kim@sk.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
Add test to verify that DAMON status is not changed after a no-op commit.

[ekffu200098@gmail.com: change wrong json.dump usage to json.dumps]
  Link: https://lkml.kernel.org/r/20250816014033.190451-1-ekffu200098@gmail.com
Link: https://lkml.kernel.org/r/20250810124354.16456-1-ekffu200098@gmail.com
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Honggyu Kim <honggyu.kim@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: fix selftests by installing drgn related script 2025-08-19T23:35:55+00:00 Sang-Heon Jeon ekffu200098@gmail.com 2025-08-12T14:00:46+00:00 0cc2a4880ced1486acc34898cd85edc6ee109c4c drgn_dump_damon_status is not installed during kselftest setup. It can break other tests which depend on drgn_dump_damon_status. Install drgn_dump_damon_status files to fix broken test. Link: https://lkml.kernel.org/r/20250812140046.660486-1-ekffu200098@gmail.com Fixes: f3e8e1e51362 ("selftests/damon: add drgn script for extracting damon status") Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Reviewed-by: SeongJae Park <sj@kernel.org> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Honggyu Kim <honggyu.kim@sk.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
drgn_dump_damon_status is not installed during kselftest setup.  It can
break other tests which depend on drgn_dump_damon_status.  Install
drgn_dump_damon_status files to fix broken test.

Link: https://lkml.kernel.org/r/20250812140046.660486-1-ekffu200098@gmail.com
Fixes: f3e8e1e51362 ("selftests/damon: add drgn script for extracting damon status")
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Honggyu Kim <honggyu.kim@sk.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: add python and drgn-based DAMON sysfs test 2025-07-13T23:38:20+00:00 SeongJae Park sj@kernel.org 2025-06-28T16:04:25+00:00 4ece01897627ddeefcede4ac709cd99763994dc4 Add a python-written DAMON sysfs functionality selftest. It sets DAMON parameters using Python module _damon_sysfs, reads updated kernel internal DAMON status and parameters using a 'drgn' script, namely drgn_dump_damon_status.py, and compare if the resulted DAMON internal status is as expected. The test is very minimum at the moment. Link: https://lkml.kernel.org/r/20250628160428.53115-4-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> 
Add a python-written DAMON sysfs functionality selftest.  It sets DAMON
parameters using Python module _damon_sysfs, reads updated kernel internal
DAMON status and parameters using a 'drgn' script, namely
drgn_dump_damon_status.py, and compare if the resulted DAMON internal
status is as expected.  The test is very minimum at the moment.

Link: https://lkml.kernel.org/r/20250628160428.53115-4-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>
selftets/damon: add a test for memcg_path leak 2025-07-10T05:42:19+00:00 SeongJae Park sj@kernel.org 2025-06-19T18:36:08+00:00 dfa3cf0bc018ff15e02ce19906be00a287ff2395 There was a memory leak bug in DAMOS sysfs memcg_path file. Add a selftest to ensure the bug never comes back. Link: https://lkml.kernel.org/r/20250619183608.6647-3-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> 
There was a memory leak bug in DAMOS sysfs memcg_path file.  Add a
selftest to ensure the bug never comes back.

Link: https://lkml.kernel.org/r/20250619183608.6647-3-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>
selftests/damon: remove the remaining test scripts for DAMON debugfs interface 2025-05-12T00:48:30+00:00 Enze Li lienze@kylinos.cn 2025-04-11T02:43:32+00:00 f736953e2b1f1d7096e70580180f98744c9c9c86 DAMON has dropped debugfs support; therefore, remove these unused scripts. Link: https://lkml.kernel.org/r/20250411024332.1373861-1-enze.li@linux.dev Fixes: 5ec4333b1967 ("mm/damon: remove DAMON debugfs interface") Signed-off-by: Enze Li <lienze@kylinos.cn> Reviewed-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
DAMON has dropped debugfs support; therefore, remove these unused scripts.

Link: https://lkml.kernel.org/r/20250411024332.1373861-1-enze.li@linux.dev
Fixes: 5ec4333b1967 ("mm/damon: remove DAMON debugfs interface")
Signed-off-by: Enze Li <lienze@kylinos.cn>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: remove tests for DAMON debugfs interface 2025-01-26T04:22:29+00:00 SeongJae Park sj@kernel.org 2025-01-06T19:19:38+00:00 859de14931a6b2db02f6579a8c4c9bc34dd326e0 It's time to remove DAMON debugfs interface, which has deprecated long before in February 2023. Read the cover letter of this patch series for more details. Remove selftests for the interface, to prevent causing unnecessary test failures. Link: https://lkml.kernel.org/r/20250106191941.107070-6-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Alex Shi <alexs@kernel.org> Cc: Brendan Higgins <brendan.higgins@linux.dev> Cc: David Gow <davidgow@google.com> Cc: Hu Haowen <2023002089@link.tyut.edu.cn> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Rae Moar <rmoar@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Yanteng Si <si.yanteng@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
It's time to remove DAMON debugfs interface, which has deprecated long
before in February 2023.  Read the cover letter of this patch series for
more details.

Remove selftests for the interface, to prevent causing unnecessary test
failures.

Link: https://lkml.kernel.org/r/20250106191941.107070-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rae Moar <rmoar@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Yanteng Si <si.yanteng@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: add _damon_sysfs.py to TEST_FILES 2024-12-06T03:54:44+00:00 Maximilian Heyne mheyne@amazon.de 2024-11-27T12:08:53+00:00 4a475c0a7eeb3368eca40fe7cb02d157eeddc77a When running selftests I encountered the following error message with some damon tests: # Traceback (most recent call last): # File "[...]/damon/./damos_quota.py", line 7, in <module> # import _damon_sysfs # ModuleNotFoundError: No module named '_damon_sysfs' Fix this by adding the _damon_sysfs.py file to TEST_FILES so that it will be available when running the respective damon selftests. Link: https://lkml.kernel.org/r/20241127-picks-visitor-7416685b-mheyne@amazon.de Fixes: 306abb63a8ca ("selftests/damon: implement a python module for test-purpose DAMON sysfs controls") Signed-off-by: Maximilian Heyne <mheyne@amazon.de> Reviewed-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
When running selftests I encountered the following error message with
some damon tests:

 # Traceback (most recent call last):
 #   File "[...]/damon/./damos_quota.py", line 7, in <module>
 #     import _damon_sysfs
 # ModuleNotFoundError: No module named '_damon_sysfs'

Fix this by adding the _damon_sysfs.py file to TEST_FILES so that it
will be available when running the respective damon selftests.

Link: https://lkml.kernel.org/r/20241127-picks-visitor-7416685b-mheyne@amazon.de
Fixes: 306abb63a8ca ("selftests/damon: implement a python module for test-purpose DAMON sysfs controls")
Signed-off-by: Maximilian Heyne <mheyne@amazon.de>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: cleanup __pycache__/ with 'make clean' 2024-09-04T04:15:56+00:00 SeongJae Park sj@kernel.org 2024-08-27T03:03:29+00:00 582c04b07fa91665b4f38682c290fb9f0b085c7e Python-based tests creates __pycache__/ directory. Remove it with 'make clean' by defining it as EXTRA_CLEAN. Link: https://lkml.kernel.org/r/20240827030336.7930-3-sj@kernel.org Fixes: b5906f5f7359 ("selftests/damon: add a test for update_schemes_tried_regions sysfs command") Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: David Gow <davidgow@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
Python-based tests creates __pycache__/ directory.  Remove it with 'make
clean' by defining it as EXTRA_CLEAN.

Link: https://lkml.kernel.org/r/20240827030336.7930-3-sj@kernel.org
Fixes: b5906f5f7359 ("selftests/damon: add a test for update_schemes_tried_regions sysfs command")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
selftests/damon: implement test for min/max_nr_regions 2024-07-04T02:30:29+00:00 SeongJae Park sj@kernel.org 2024-06-25T18:05:36+00:00 781497347d1bcb8c95fca8356575cfd42fff1354 Implement a kselftest for DAMON's {min,max}_nr_regions' parameters. The test ensures both the minimum and the maximum number of regions limit is respected even if the workload's real number of regions is less than the minimum or larger than the maximum limits. Link: https://lkml.kernel.org/r/20240625180538.73134-7-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> 
Implement a kselftest for DAMON's {min,max}_nr_regions' parameters.  The
test ensures both the minimum and the maximum number of regions limit is
respected even if the workload's real number of regions is less than the
minimum or larger than the maximum limits.

Link: https://lkml.kernel.org/r/20240625180538.73134-7-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>