linux/tools/testing/selftests/cgroup/Makefile, branch master

cgroup: selftests: Move cgroup_util into its own library

2025-05-16T18:45:15Z

KVM selftests will soon need to use some of the cgroup creation and deletion functionality from cgroup_util. Suggested-by: David Matlack Signed-off-by: James Houghton Acked-by: Tejun Heo Link: https://lore.kernel.org/r/20250508184649.2576210-5-jthoughton@google.com Signed-off-by: Sean Christopherson

selftests: cgroup: Add basic tests for pids controller

2024-05-26T18:45:10Z

This commit adds (and wires in) new test program for checking basic pids controller functionality -- restricting tasks in a cgroup and correct event counting. Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo

selftests: cgroup: Lexicographic order in Makefile

2024-05-26T18:45:10Z

This will reduce number of conflicts when modifying the lists. Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo

cgroup/cpuset: Add test_cpuset_v1_hp.sh

2024-04-08T17:39:38Z

Add a simple test to verify that an empty v1 cpuset will force its tasks to be moved to an ancestor node. It is based on the test case documented in commit 76bb5ab8f6e3 ("cpuset: break kernfs active protection in cpuset_write_resmask()"). Signed-off-by: Waiman Long Signed-off-by: Tejun Heo

selftests: add a selftest to verify hugetlb usage in memcg

2023-10-18T21:34:18Z

This patch add a new kselftest to demonstrate and verify the new hugetlb memcg accounting behavior. Link: https://lkml.kernel.org/r/20231006184629.155543-5-nphamcs@gmail.com Signed-off-by: Nhat Pham Cc: Frank van der Linden Cc: Johannes Weiner Cc: Michal Hocko Cc: Mike Kravetz Cc: Muchun Song Cc: Rik van Riel Cc: Roman Gushchin Cc: Shakeel Butt Cc: Shuah Khan Cc: Tejun heo Cc: Yosry Ahmed Cc: Zefan Li Signed-off-by: Andrew Morton

Merge tag 'cgroup-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2023-09-01T22:58:21Z

Pull cgroup updates from Tejun Heo: - Per-cpu cpu usage stats are now tracked This currently isn't printed out in the cgroupfs interface and can only be accessed through e.g. BPF. Should decide on a not-too-ugly way to show per-cpu stats in cgroupfs - cpuset received some cleanups and prepatory patches for the pending cpus.exclusive patchset which will allow cpuset partitions to be created below non-partition parents, which should ease the management of partition cpusets - A lot of code and documentation cleanup patches - tools/testing/selftests/cgroup/test_cpuset.c added * tag 'cgroup-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (32 commits) cgroup: Avoid -Wstringop-overflow warnings cgroup:namespace: Remove unused cgroup_namespaces_init() cgroup/rstat: Record the cumulative per-cpu time of cgroup and its descendants cgroup: clean up if condition in cgroup_pidlist_start() cgroup: fix obsolete function name in cgroup_destroy_locked() Documentation: cgroup-v2.rst: Correct number of stats entries cgroup: fix obsolete function name above css_free_rwork_fn() cgroup/cpuset: fix kernel-doc cgroup: clean up printk() cgroup: fix obsolete comment above cgroup_create() docs: cgroup-v1: fix typo docs: cgroup-v1: correct the term of Page Cache organization in inode cgroup/misc: Store atomic64_t reads to u64 cgroup/misc: Change counters to be explicit 64bit types cgroup/misc: update struct members descriptions cgroup: remove cgrp->kn check in css_populate_dir() cgroup: fix obsolete function name cgroup: use cached local variable parent in for loop cgroup: remove obsolete comment above struct cgroupstats cgroup: put cgroup_tryget_css() inside CONFIG_CGROUP_SCHED ...

selftests: cgroup: add test_zswap program

2023-08-18T17:12:08Z

Patch series "selftests: cgroup: add zswap test program". This series adds 2 zswap related selftests that verify known and fixed issues. A new dedicated test program (test_zswap) is proposed since the test cases are specific to zswap and hosts specific helpers. The first patch adds the (empty) test program, while the other 2 add an actual test function each. This patch (of 3): Add empty cgroup-zswap self test scaffold program, test functions to be added in the next commits. Link: https://lkml.kernel.org/r/20230621153548.428093-1-cerasuolodomenico@gmail.com Link: https://lkml.kernel.org/r/20230621153548.428093-2-cerasuolodomenico@gmail.com Signed-off-by: Domenico Cerasuolo Cc: Dan Streetman Cc: Johannes Weiner Cc: Michal Hocko Cc: Muchun Song Cc: Nhat Pham Cc: Rik van Riel Cc: Roman Gushchin Cc: Seth Jennings Cc: Shakeel Butt Cc: Shuah Khan Cc: Tejun Heo Cc: Vitaly Wool Cc: Zefan Li Signed-off-by: Andrew Morton

selftests: cgroup: Add cpuset migrations testcase

2023-07-10T20:29:53Z

Add a separate testfile to verify treating permissions when tasks are migrated on cgroup v2 hierarchy between cpuset cgroups. In accordance with v2 design, migration should be allowed based on delegation boundaries (i.e. cgroup.procs permissions) and does not depend on the migrated object (i.e. unprivileged process can migrate another process (even privileged) as long as it remains in the original dedicated scope). Signed-off-by: Michal Koutný Signed-off-by: Tejun Heo

kselftest/cgroup: Add cpuset v2 partition root state test

2022-09-04T20:47:28Z

Add a test script test_cpuset_prs.sh with a helper program wait_inotify for exercising the cpuset v2 partition root state code. Signed-off-by: Waiman Long Signed-off-by: Tejun Heo

cgroup: Add new test_cpu.c test suite in cgroup selftests

2022-04-22T18:39:32Z

The cgroup selftests suite currently contains tests that validate various aspects of cgroup, such as validating the expected behavior for memory controllers, the expected behavior of cgroup.procs, etc. There are no tests that validate the expected behavior of the cgroup cpu controller. This patch therefore adds a new test_cpu.c file that will contain cpu controller testcases. The file currently only contains a single testcase that validates creating nested cgroups with cgroup.subtree_control including cpu. Future patches will add more sophisticated testcases that validate functional aspects of the cpu controller. Signed-off-by: David Vernet Signed-off-by: Tejun Heo