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Red Hat Enterprise Linux 7
Performance Tuning Guide
Optimizing subsystem throughput in Red Hat Enterprise Linux 7
Last Updated: 2018-05-21
Red Hat Enterprise Linux 7 Performance Tuning Guide
Optimizing subsystem throughput in Red Hat Enterprise Linux 7
Milan Navrátil
Red Hat Customer Content Services
Laura Bailey
Red Hat Customer Content Services
Charlie Boyle
Red Hat Customer Content Services
Edited by
Marek Suchánek
Red Hat Customer Content Services
msuchane@redhat.com
Legal Notice
Copyright © 2018 Red Hat, Inc.
This document is licensed by Red Hat under the Creative Commons Attribution-ShareAlike 3.0
Unported License. If you distribute this document, or a modified version of it, you must provide
attribution to Red Hat, Inc. and provide a link to the original. If the document is modified, all Red Hat
trademarks must be removed.
Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert,
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countries.
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All other trademarks are the property of their respective owners.
Abstract
The Red Hat Enterprise Linux 7 Performance Tuning Guide explains how to optimize Red Hat
Enterprise Linux 7 performance. It also documents performance-related upgrades in Red Hat
Enterprise Linux 7. The Performance Tuning Guide presents only field-tested and proven
procedures. Nonetheless, all prospective configurations should be set up and tested in a testing
environment before being applied to a production system. Backing up all data and configuration
settings prior to tuning is also recommended. To expand your expertise, you might also be
interested in the Red Hat Enterprise Linux Performance Tuning (RH442) training course.
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Table of Contents
CHAPTER 1. INTRODUCTION
Who Should Read This Book
CHAPTER 2. PERFORMANCE MONITORING TOOLS
2.1. /PROC
2.2. GNOME SYSTEM MONITOR
2.3. BUILT-IN COMMAND-LINE TOOLS
2.4. PERF
2.5. TURBOSTAT
2.6. IOSTAT
2.7. IRQBALANCE
2.8. SS
2.9. NUMASTAT
2.10. NUMAD
2.11. SYSTEMTAP
2.12. OPROFILE
2.13. VALGRIND
2.14. PQOS
CHAPTER 3. TUNED
3.1. TUNED OVERVIEW
3.2. PERFORMANCE TUNING WITH TUNED AND TUNED-ADM
CHAPTER 4. TUNA
4.1. REVIEWING THE SYSTEM WITH TUNA
4.2. TUNING CPUS WITH TUNA
4.3. TUNING IRQS WITH TUNA
4.4. TUNING TASKS WITH TUNA
4.5. EXAMPLES OF USING TUNA
CHAPTER 5. PERFORMANCE CO-PILOT (PCP)
5.1. PCP OVERVIEW AND RESOURCES
5.2. XFS FILE SYSTEM PERFORMANCE ANALYSIS WITH PERFORMANCE CO-PILOT
5.3. PERFORMING MINIMAL PCP SETUP TO GATHER FILE SYSTEM DATA
CHAPTER 6. CPU
6.1. CONSIDERATIONS
6.2. MONITORING AND DIAGNOSING PERFORMANCE PROBLEMS
6.3. CONFIGURATION SUGGESTIONS
CHAPTER 7. MEMORY
7.1. CONSIDERATIONS
7.2. MONITORING AND DIAGNOSING PERFORMANCE PROBLEMS
7.3. CONFIGURING HUGETLB HUGE PAGES
7.4. CONFIGURING TRANSPARENT HUGE PAGES
7.5. CONFIGURING SYSTEM MEMORY CAPACITY
CHAPTER 8. STORAGE AND FILE SYSTEMS
8.1. CONSIDERATIONS
8.2. MONITORING AND DIAGNOSING PERFORMANCE PROBLEMS
8.3. SOLID-STATE DISKS
8.4. CONFIGURATION TOOLS
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Table of Contents
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