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Diffstat (limited to 'Documentation/admin-guide/cgroup-v2.rst')
| -rw-r--r-- | Documentation/admin-guide/cgroup-v2.rst | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index 315ede811c9d..cb1b4e759b7e 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -64,13 +64,14 @@ v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgrou 5-6. Device 5-7. RDMA 5-7-1. RDMA Interface Files - 5-8. HugeTLB - 5.8-1. HugeTLB Interface Files - 5-9. Misc - 5.9-1 Miscellaneous cgroup Interface Files - 5.9-2 Migration and Ownership - 5-10. Others - 5-10-1. perf_event + 5-8. DMEM + 5-9. HugeTLB + 5.9-1. HugeTLB Interface Files + 5-10. Misc + 5.10-1 Miscellaneous cgroup Interface Files + 5.10-2 Migration and Ownership + 5-11. Others + 5-11-1. perf_event 5-N. Non-normative information 5-N-1. CPU controller root cgroup process behaviour 5-N-2. IO controller root cgroup process behaviour @@ -2626,6 +2627,49 @@ RDMA Interface Files mlx4_0 hca_handle=1 hca_object=20 ocrdma1 hca_handle=1 hca_object=23 +DMEM +---- + +The "dmem" controller regulates the distribution and accounting of +device memory regions. Because each memory region may have its own page size, +which does not have to be equal to the system page size, the units are always bytes. + +DMEM Interface Files +~~~~~~~~~~~~~~~~~~~~ + + dmem.max, dmem.min, dmem.low + A readwrite nested-keyed file that exists for all the cgroups + except root that describes current configured resource limit + for a region. + + An example for xe follows:: + + drm/0000:03:00.0/vram0 1073741824 + drm/0000:03:00.0/stolen max + + The semantics are the same as for the memory cgroup controller, and are + calculated in the same way. + + dmem.capacity + A read-only file that describes maximum region capacity. + It only exists on the root cgroup. Not all memory can be + allocated by cgroups, as the kernel reserves some for + internal use. + + An example for xe follows:: + + drm/0000:03:00.0/vram0 8514437120 + drm/0000:03:00.0/stolen 67108864 + + dmem.current + A read-only file that describes current resource usage. + It exists for all the cgroup except root. + + An example for xe follows:: + + drm/0000:03:00.0/vram0 12550144 + drm/0000:03:00.0/stolen 8650752 + HugeTLB ------- |