Control groups

Control Groups (cgroups) is a feature of the Linux kernel that provides a mechanism for aggregating or partitioning sets of tasks into hierarchical groups with specialized behaviour. Here you can find how StorPool uses the cpuset and memory cgroups to optimize performance and protect the storage system from random events, like out of memory states or latency spikes.

• About kernel control groups
• StorPool and Cgroups
• Introduction to storpool_cg
• Configuration options and parameters
• Creating cgroups configurations for hypervisors
• Creating cgroups configurations for dedicated storage and hyperconverged nodes
• Configuring multiple similar machines
• Verifying machine’s cgroups state and configurations
• Updating already configured machines
• Overview
• Default Control Groups v2 platforms
• Unified hierarchy
• Controller requirements
• Cgroups management
• Memory configuration
• Configuration ownership
• Cgroups v1/v2 migration procedure