Linux › Section H · Processes and resource utilization › Topic H.6
Control groups and performance tuning
Watching resources is half the job; the other half is deciding how much of them each workload may use. Control groups let the kernel account for and limit whole groups of processes, and a disciplined tuning method keeps changes to the ones that actually help.
In this topic
- From watching to limiting
- Version 1 and version 2
- The cgroup filesystem
- Worked example: reading a container's limits
- Changing cgroups by hand
- systemd slices, scopes and services
- Worked example: a memory limit in action
- A method for performance tuning
- Tuning tools and history
- Common mistakes to avoid
- Key takeaways
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