Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE podręczniki

Instrukcje obsługi i podręczniki użytkownika dla Oprogramowanie Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE.
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Red hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE Informacje Techniczne (240 strony)

Marka: Red-hat | Kategoria: Oprogramowanie | Rozmiar: 1.09 MB |

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SUSE Linux

Enterprise Server

Contents

III Kernel Monitoring 69

IV Resource Management 113

V Kernel Tuning 153

16 Tuning the Network 187

17 Tracing Tools 193

18 kexec and kdump 205

A GNU Licenses 221

About This Guide

1 Available Documentation

2 Feedback

3 Documentation Conventions

PartI.Basics

General Notes on System

1.2 Rule Out Common Problems

1.3 Finding the Bottleneck

1.4 Step-by-step Tuning

PartII.System Monitoring

System Monitoring Utilities

2.1.1 vmstat

With sadc

CPU Utilization Report: sar

Memory Usage Report: sar -r

2.1.2.3 Visualizing sar Data

2.2 System Information

Viewer: udevadm monitor

2.3 Processes

2.3.2 Process List: ps

2.3.3 Process Tree: pstree

2.3.4 Table of Processes: top

2.4 Memory

HugePages_Rsvd: 0

HugePages_Surp: 0

Hugepagesize: 2048 kB

DirectMap4k: 2689024 kB

DirectMap2M: 5691392 kB

2.5 Networking

2.6 The /proc File System

2.6.1 procinfo

2.7 Hardware Information

2.8 Files and File Systems

Binaries

2.8.4 File Properties: stat

2.9 User Information

2.10 Time and Date

2.11 Graph Your Data: RRDtool

2.11.2.1 Collecting Data

2.11.2.2 Creating Database

2.11.3 For More Information

Monitoring with Nagios

3.3.1 Object Definition Files

3.4 Configuring Nagios

3.5 Troubleshooting

3.6 For More Information

Analyzing and Managing

System Log Files

4.3 Managing Log Files with

4.4 Monitoring Log Files with

Log Entries

PartIII.Kernel Monitoring

SystemTap—Filtering and

Analyzing System Data

5.1.1 SystemTap Scripts

5.1.2 Tapsets

5.1.3 Commands and Privileges

5.2 Installation and Setup

5.3 Script Syntax

Ctrl + C

5.3.3.1 Functions

Variables

Conditional Statements

5.4 Example Script

5.5 User-Space Probing

5.6 For More Information

Kernel Probes

101

6.1 Supported Architectures

102

6.2 Types of Kernel Probes

102

6.3 Kernel probes API

103

6.4 Debugfs Interface

104

6.5 For More Information

105

Perfmon2—Hardware

107

Based Performance

107

Monitoring

107

7.1.2 Sampling and Counting

108

7.2 Installation

109

7.3 Using Perfmon

110

7.4 Retrieving Metrics From

113

interrupt =

115

ovfl_intr_ns /

115

ovfl_intr_all_count

115

7.5 For More Information

116

OProfile—System-Wide

119

Profiler

119

8.4 Using OProfile

120

8.4.1 General Steps

121

8.5 Using OProfile's GUI

123

8.6 Generating Reports

124

8.7 For More Information

124

PartIV.Resource

127

Management

127

General System Resource

129

9.1.2 Installation Scope

130

9.1.3 Default Runlevel

130

9.2 Disabling Unnecessary

131

Services

131

9.3.1 File Systems

132

Kernel Control Groups

135

10.2 Scenario

136

Disk I/O

137

Network I/O

137

10.3 Control Group Subsystems

138

10.4 Using Controller Groups

141

10.4.3 Example: Cpusets

142

10.4.4 Example: cgroups

143

10.5 For More Information

144

Power Management

147

11.1.4 Turbo Features

150

11.2 The Linux Kernel CPUfreq

151

Infrastructure

151

11.3 Viewing, Monitoring and

153

Tuning Power-related Settings

153

Statistics with cpupower

157

11.4 Special Tuning Options

160

11.5 Creating and Using Power

163

Management Profiles

163

11.6 Troubleshooting

164

11.7 For More Information

165

PartV.Kernel Tuning

167

Installing Multiple Kernel

169

Versions

169

12.1 Enabling and Configuring

170

Multiversion Support

170

Kernel Versions with YaST

171

Kernel Versions with zypper

172

Tuning I/O Performance

175

13.2 Available I/O Elevators

176

13.2.2 NOOP

177

13.2.3 DEADLINE

177

13.3 I/O Barrier Tuning

178

Tuning the Task Scheduler

179

14.2 Process Classification

180

14.3 O(1) Scheduler

181

14.4.1 How CFS Works

183

14.4.2 Grouping Processes

183

14.4.4 Terminology

184

Scheduler Statistics

189

14.5 For More Information

190

Tuning the Memory

193

Management Subsystem

193

15.1 Memory Usage

194

15.1.4 Buffer Heads

195

15.1.5 Writeback

195

15.1.6 Readahead

195

15.1.7 VFS caches

195

15.2 Reducing Memory Usage

196

Tunable Parameters

197

15.3.2 Writeback Parameters

198

15.3.3 Readahead parameters

199

15.3.4 Further VM Parameters

199

15.5 Monitoring VM Behavior

200

Tuning the Network

201

/proc/sys/net/ipv6

202

/proc/sys/net/core

202

/proc/sys/net/ipv4

202

16.3 Netfilter

203

16.4 For More Information

204

PartVI.Handling

205

System Dumps

205

Tracing Tools

207

Valgrind

212

17.3.3 General Information

213

17.3.4 Default Options

214

17.3.5 How Valgrind Works

214

17.3.6 Messages

215

17.3.7 Error Messages

216

17.4 For More Information

217

18.1 Introduction

219

18.2 Required Packages

220

18.3 kexec Internals

220

18.4 Basic kexec Usage

221

Routine Reboots

222

/sbin/mkinitrd -D vlan0

223

/sbin/mkinitrd -I eth0

223

18.6.2 YaST Configuration

226

18.7 Analyzing the Crash Dump

227

18.7.1 Kernel Binary Formats

228

18.8 Advanced kdump

231

Configuration

231

18.9 For More Information

232

GNU Licenses

235

2. VERBATIM COPYING

236

3. COPYING IN QUANTITY

236

4. MODIFICATIONS

236

5. COMBINING DOCUMENTS

237

GNU Licenses 225

239

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Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE podręczniki

Red hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE Informacje Techniczne (240 strony)

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