The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
You control the access that cgroups have to
system resources by specifying parameters to various kernel
modules known as subsystems (or as
resource controllers in some
cgroups documentation).
The following table lists the subsystems that are provided with
the cgroups package.
Subsystem | Description |
|---|---|
| Controls and reports block I/O operations. See Section 7.2.1, “blkio Parameters”. Note
The |
| Controls access to CPU resources. See Section 7.2.2, “cpu Parameters”. |
| Reports usage of CPU resources. See Section 7.2.3, “cpuacct Parameters”. |
| Controls access to CPU cores and memory nodes (for systems with NUMA architectures). See Section 7.2.4, “cpuset Parameters”. |
| Controls access to system devices. See Section 7.2.5, “devices Parameters”. |
| Suspends or resumes cgroup tasks. See Section 7.2.6, “freezer Parameter”. |
| Controls access to memory resources, and reports on memory usage. See Section 7.2.7, “memory Parameters”. |
| Tags network packets for use by network traffic control. See Section 7.2.8, “net_cls Parameter”. |
You can set the following parameters for each subsystem.