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Red Hat Performance Tuning: Linux in Physical, Virtual, and Cloud (RH442)

Detailed Course Outline

Unit 1 - Basics: Principles and Terminology
  • What is performance tuning?
  • Steps in the tuning process
  • Quantifying performance
Unit 2 - Tools for Obtaining Information
  • The sysfs and proc filesystems and the sysctl utility
  • System process queues
  • The system activity reporter
  • Passing parameters to kernel modules
  • Generating reports using standard utilties
  • Benchmarking
  • Monitoring systems with SNMP and MRTG
Unit 3 - Monitoring the Kernel
  • Kernel profiling and OProfile
  • Monitoring the kernel with SystemTap
Unit 4 - Hardware Performance Considerations
  • Memory: levels, types
  • Cache
  • Disk and I/O
Unit 5 - The CPU: Processes and Scheduling
  • Controlling processor speed
  • How the Linux kernel schedules processes
  • Process priority
  • Obtaining processor performance information
Unit 6 - Memory
  • How Processes and the kernel utilize memory
  • System tunables that affect memory performance
  • How page and buffer caches work
  • Monitoring and controlling memory usage
  • The virtual memory subsystem
Unit 7 - The I/O Subsystem and Filesystems
  • Tuning the disk I/O subsystem
  • I/O scheduling
  • The virtual file system
  • File system tunable parameters
  • Layout of the ext2 and ext3 filesystems
  • Journaling
Unit 8 - Network Performance
  • Factors affecting performance
  • Viewing device information
  • Ethernet channel bonding
  • Network sockets
  • Layers of the OSI model
  • TCP tuning
Unit 9 - Application Tuning
  • Causes of performance problems
  • Application tuning
  • Viewing application behaviors using standard tools
  • NFS
  • Apache
  • Samba
 
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