pm24.git/tools/testing/selftests/damon, branch rust-6.14

selftests/damon: add _damon_sysfs.py to TEST_FILES

2024-12-06T03:54:44Z

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 # 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 Reviewed-by: SeongJae Park Cc: Shuah Khan Cc: Signed-off-by: Andrew Morton

selftests/damon/debugfs_duplicate_context_creation: hide errors from expected file write failures

2024-11-07T22:38:08Z

debugfs_duplicate_context_creation.sh does an invalid file write to ensure it fails. Check of the failure is sufficient, so the error message from the failure only makes the output unnecessarily noisy. Hide it. Link: https://lkml.kernel.org/r/20241028233058.283381-5-sj@kernel.org Fixes: ade38b8ca5ce ("selftest/damon: add a test for duplicate context dirs creation") Signed-off-by: SeongJae Park Cc: Andrew Paniakin Cc: Brendan Higgins Cc: David Gow Cc: Shuah Khan Signed-off-by: Andrew Morton

selftests/damon/_debugfs_common: hide expected error message from test_write_result()

2024-11-07T22:38:08Z

DAMON debugfs interface selftests use test_write_result() to check if valid or invalid writes to files of the interface success or fail as expected. File write error messages from expected failures are only making the output noisy. Hide such expected error messages. Link: https://lkml.kernel.org/r/20241028233058.283381-4-sj@kernel.org Fixes: b348eb7abd09 ("mm/damon: add user space selftests") Signed-off-by: SeongJae Park Cc: Andrew Paniakin Cc: Brendan Higgins Cc: David Gow Cc: Shuah Khan Signed-off-by: Andrew Morton

selftests/damon/huge_count_read_write: remove unnecessary debugging message

2024-11-07T22:38:08Z

The program prints expected errors from write/read of the files with invalid huge count, for only debugging purpose. It is only making the output noisy. Remove those. Link: https://lkml.kernel.org/r/20241028233058.283381-3-sj@kernel.org Fixes: b4a002889d24 ("selftests/damon: test debugfs file reads/writes with huge count") Signed-off-by: SeongJae Park Cc: Andrew Paniakin Cc: Brendan Higgins Cc: David Gow Cc: Shuah Khan Signed-off-by: Andrew Morton

selftests/damon/huge_count_read_write: provide sufficiently large buffer for DEPRECATED file read

2024-11-07T22:38:08Z

Patch series "damon/{self,kunit}tests: minor fixups for DAMON debugfs interface tests". Fixup small broken window panes in DAMON selftests and kunit tests. First four patches clean up DAMON debugfs interface selftests output, by fixing segmentation fault of a test program (patch 1), removing unnecessary debugging messages (patch 2), and hiding error messages from expected failures (patches 3 and 4). Following two patches fix copy-paste mistakes in DAMON Kconfig help message that copied from debugfs kunit test (patch 5) and a comment on the debugfs kunit test code (patch 6). This patch (of 6): 'huge_count_read_write' crashes with segmentation fault when reading DEPRECATED file of DAMON debugfs interface. This is not causing any problem for users or other tests because the purpose of the test is just ensuring the read is not causing kernel warning messages. Nonetheless, it makes the output unnecessarily noisy, and the DEPRECATED file is not properly being tested. It happens because the size of the content of the file is larger than the size of the buffer for the read. The file contains about 170 characters. Increase the buffer size to 256 characters. Link: https://lkml.kernel.org/r/20241028233058.283381-1-sj@kernel.org Link: https://lkml.kernel.org/r/20241028233058.283381-2-sj@kernel.org Fixes: b4a002889d24 ("selftests/damon: test debugfs file reads/writes with huge count") Signed-off-by: Andrew Paniakin Signed-off-by: SeongJae Park Cc: Andrew Panyakin Cc: Brendan Higgins Cc: David Gow Cc: Shuah Khan Signed-off-by: Andrew Morton

selftests/damon/access_memory_even: remove unused variables

2024-11-06T00:56:30Z

By reading the code, I found these variables are never referenced in the code. Just remove them. Link: https://lkml.kernel.org/r/20240924021426.1980-1-bajing@cmss.chinamobile.com Signed-off-by: Ba Jing Reviewed-by: SeongJae Park Reviewed-by: Dev Jain Reviewed-by: Shuah Khan Signed-off-by: Andrew Morton

selftests/damon: add execute permissions to test scripts

2024-09-04T04:15:57Z

Some test scripts are missing executable permissions. It causes warnings that make the test output unnecessarily verbose. Add executable permissions. Link: https://lkml.kernel.org/r/20240827030336.7930-4-sj@kernel.org Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Signed-off-by: Andrew Morton

selftests/damon: cleanup pycache/ with 'make clean'

2024-09-04T04:15:56Z

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 Cc: Brendan Higgins Cc: David Gow Signed-off-by: Andrew Morton

selftests/damon: add access_memory_even to .gitignore

2024-09-04T04:15:56Z

Patch series "misc fixups for DAMON {self,kunit} tests". This patchset is for minor fixups of DAMON selftests and kunit tests. First three patches make DAMON selftests more cleanly maintained (patches 1 and 2) without unnecessary warnings (patch 3). Following six patches remove unnecessary test case (patch 4), handle configs combinations that can make tests fail (patches 5-7), reorganize the test files following the new guideline (patch 8), and add reference kunitconfig for DAMON kunit tests (patch 9). This patch (of 9): DAMON selftests build access_memory_even, but its not on the .gitignore list. Add it to make 'git status' output cleaner. Link: https://lkml.kernel.org/r/20240827030336.7930-1-sj@kernel.org Link: https://lkml.kernel.org/r/20240827030336.7930-2-sj@kernel.org Fixes: c94df805c774 ("selftests/damon: implement a program for even-numbered memory regions access") Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Signed-off-by: Andrew Morton

selftests/damon/damon_nr_regions: test online-tuned max_nr_regions

2024-07-04T02:30:29Z

User could update max_nr_regions parameter while DAMON is running to a value that smaller than the current number of regions that DAMON is seeing. Such update could be done for reducing the monitoring overhead. In the case, DAMON should merge regions aggressively more than normal situation to ensure the new limit is successfully applied. Implement a kselftest to ensure that. Link: https://lkml.kernel.org/r/20240625180538.73134-9-sj@kernel.org Signed-off-by: SeongJae Park Cc: Shuah Khan Signed-off-by: Andrew Morton

pm24.git/tools/testing/selftests/damon, branch rust-6.14

selftests/damon: add _damon_sysfs.py to TEST_FILES

selftests/damon/debugfs_duplicate_context_creation: hide errors from expected file write failures

selftests/damon/_debugfs_common: hide expected error message from test_write_result()

selftests/damon/huge_count_read_write: remove unnecessary debugging message

selftests/damon/huge_count_read_write: provide sufficiently large buffer for DEPRECATED file read

selftests/damon/access_memory_even: remove unused variables

selftests/damon: add execute permissions to test scripts

selftests/damon: cleanup __pycache__/ with 'make clean'

selftests/damon: add access_memory_even to .gitignore

selftests/damon/damon_nr_regions: test online-tuned max_nr_regions

selftests/damon: cleanup pycache/ with 'make clean'