Linux 5.13 Introducing Misc Cgroup Controller
Written by Michael Larabel in Linux Kernel on 28 April 2021 at 05:59 AM EDT. Add A Comment
LINUX KERNEL --
The Linux 5.13 development kernel is introducing a new "misc" cgroup controller. The misc cgroup controller is to be used for resources that are controlled by simply counting / limiting the number of resource instances in a scalar manner.

This cgroup controller can be used for purposes like tracking/limiting the number of enclaves on the system based upon hardware constraints, The initial user of this misc cgroup controller is for address space IDs used for virtual machine memory encryption.

As outlined via the pull request, the misc cgroup controller should work well for "niche hardware features with concrete resource limits and simple usage models."

Look for this Miscellaneous controller to be built upon moving forward now that the initial implementation is merged Linux 5.13. This documentation further outlines the new cgroup controller.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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