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| author | Mark Brown <broonie@kernel.org> | 2026-05-29 23:13:45 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-05-29 23:13:45 +0100 |
| commit | 90aadaa2537394eaf9d6331ce201bb8894a5897b (patch) | |
| tree | 6f15d64172dd8dfb279fc3c3dbb3bb2db6e53eae /Documentation | |
| parent | ec3e8051ea49f7b090373754f615a3513575f005 (diff) | |
| parent | ebc50c66b365d3046c7741195224d2aa7809c9b5 (diff) | |
| download | linux-next-history-90aadaa2537394eaf9d6331ce201bb8894a5897b.tar.gz | |
Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
# Conflicts:
# tools/testing/selftests/cgroup/test_memcontrol.c
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/cgroup-v2.rst | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index 6efd0095ed995..993446ab66d0f 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -2785,6 +2785,59 @@ RDMA Interface Files mlx4_0 hca_handle=1 hca_object=20 ocrdma1 hca_handle=1 hca_object=23 + rdma.peak + A read-only nested-keyed file that exists for all the cgroups + except root. It shows the historical high watermark of + resource usage per device since the cgroup was created. + + An example for mlx4 and ocrdma device follows:: + + mlx4_0 hca_handle=1 hca_object=20 + ocrdma1 hca_handle=0 hca_object=23 + + rdma.events + A read-only nested-keyed file which exists on non-root + cgroups. The following nested keys are defined. + + max + The number of times a process in this cgroup or its + descendants attempted an RDMA resource allocation that + was rejected because a rdma.max limit in the subtree + was reached. This is a hierarchical counter: the event + is propagated upward to all ancestor cgroups. A value + change in this file generates a file modified event. + + alloc_fail + The number of RDMA resource allocation attempts that + originated in this cgroup or its descendants and failed + due to a rdma.max limit being reached. This is a + hierarchical counter propagated upward. + + An example for mlx4 device follows:: + + mlx4_0 hca_handle.max=5 hca_handle.alloc_fail=3 hca_object.max=0 hca_object.alloc_fail=0 + + rdma.events.local + Similar to rdma.events but the fields in the file are local + to the cgroup i.e. not hierarchical. The file modified event + generated on this file reflects only the local events. + + The following nested keys are defined. + + max + The number of times a process in this cgroup or its + descendants attempted an RDMA resource allocation that + was rejected because this cgroup's own rdma.max limit + was reached. + alloc_fail + The number of RDMA resource allocation attempts + originating from this cgroup that failed due to this + cgroup's or an ancestor's rdma.max limit. + + An example for mlx4 device follows:: + + mlx4_0 hca_handle.max=5 hca_handle.alloc_fail=0 hca_object.max=0 hca_object.alloc_fail=0 + DMEM ---- |