Future-Proof Your Applications: Avoid Breakdowns With Cgroup Chan...
summary
Shows how to migrate real workloads from cgroup v1 (introduced in 2.6.24) to unified cgroup v2 (stable since 4.5) with concrete commands: uses cgcreate, libcgroup abstractions (hyphen-1/2 mappings), systemd slices and cgconfig to make setups persistent, and cgpt/cgtop-style demos that allocate CPU.max and memory.max (weights range 1–10000, default 100). Demonstrates giving a cgroup 80% CPU to five tasks, using PSI to read 10/60/300s stall percentages, and freezing a cgroup to stop CPU while retaining allocations.
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chapters (12)
- 0:00Cgroups introduction
- 1:28Live demo: cgroup basics
- 5:58History of cgroups
- 7:44Cgroup hierarchies
- 9:09Cgroup v1 vs v2 differences
- 11:40Persistent cgroups setup
- 12:03Migrating to cgroup v2
- 17:05Cgroup v2 rules
- 18:52Lipgroup migration abstractions
- 21:37QoS in cgroup v2
- 26:55Pressure Stall demo
- 32:41Q&A
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