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Red Hat Enterprise Linux 6

Resource Management Guide

Managing system resources on Red Hat Enterprise Linux 6

Edition 1.0

Rüdiger Landmann

Red Hat Engineering Content Services

Douglas Silas

Red Hat Engineering Content Services

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Managing system resources on Red Hat Enterprise Linux 6

1. Document Conventions
1.1. Typographic Conventions
1.2. Pull-quote Conventions
1.3. Notes and Warnings
2. Getting Help and Giving Feedback
2.1. Do You Need Help?
2.2. We Need Feedback!
1. Introduction to Control Groups (Cgroups)
1.1. How Control Groups Are Organized
1.2. Relationships Between Subsystems, Hierarchies, Control Groups and Tasks
1.3. Implications for Resource Management
2. Using Control Groups
2.1. The cgconfig Service
2.1.1. The cgconfig.conf File
2.2. Creating a Hierarchy and Attaching Subsystems
2.3. Attaching Subsystems to, and Detaching Them From, an Existing Hierarchy
2.4. Unmounting a Hierarchy
2.5. Creating Cgroups
2.6. Removing Cgroups
2.7. Setting Parameters
2.8. Moving a Process to a Control Group
2.8.1. The cgred Daemon
2.9. Starting a Process in a Control Group
2.9.1. Starting a Service in a Control Group
2.10. Obtaining Information About Control Groups
2.10.1. Finding a Process
2.10.2. Finding a Subsystem
2.10.3. Finding Hierarchies
2.10.4. Finding Control Groups
2.10.5. Displaying Parameters of Control Groups
2.11. Unloading Groups
2.12. Additional Resources
3. Subsystems and Tunable Parameters
3.1. blkio
3.2. cpu
3.3. cpuacct
3.4. cpuset
3.5. devices
3.6. freezer
3.7. memory
3.8. net_cls
3.9. ns
3.10. Additional Resources
A. Revision History