cgexec

Run in cgroup

$ cgexec -g cpu:mygroup [process_name]

$ cgexec -g cpu:mygroup -g memory:mygroup [process_name]

$ cgexec --sticky -g cpu:mygroup [process_name]

cgexec [OPTIONS] -g controller:cgroup command [args]

cgexec executes a process within a specified control group (cgroup). Unlike cgclassify, which moves already-running processes, cgexec starts a new process directly inside the target cgroup from the beginning.
Cgroups allow limiting, measuring, and controlling resource usage by processes for CPU, memory, I/O, and other resources. By launching a process with cgexec, all resource constraints defined for that cgroup apply immediately from process startup, including any child processes it spawns.
cgexec is part of the libcgroup-tools package and works with cgroups v1. For cgroups v2 systems, systemd-run provides similar functionality.

-g controller:cgroup

Specify the controller and cgroup to use

Prevent cgred from moving the process

cpu - CPU time allocation

memory - Memory usage limits

blkio - Block I/O limits

cpuset - CPU and memory node assignment

devices - Device access control

The cgroup must exist before using cgexec (create with cgcreate). Multiple controllers can be specified with multiple -g options. Requires appropriate permissions or root access.

cgexec is part of libcgroup, providing cgroup management utilities for resource control on Linux.

cgcreate(1), cgclassify(1), cgdelete(1)