System information

9.3 File Systems and Disk Access ............................................................ 118
10 Kernel Control Groups 121
10.1 Technical Overview and Definitions .................................................. 121
10.2 Scenario ......................................................................................... 122
10.3 Control Group Subsystems ............................................................... 124
10.4 Using Controller Groups .................................................................. 127
10.5 For More Information ..................................................................... 130
11 Power Management 133
11.1 Power Management at CPU Level ..................................................... 133
11.2 The Linux Kernel CPUfreq Infrastructure .......................................... 137
11.3 Viewing, Monitoring and Tuning Power-related Settings ....................... 139
11.4 Special Tuning Options .................................................................... 146
11.5 Creating and Using Power Management Profiles ................................. 149
11.6 Troubleshooting .............................................................................. 150
11.7 For More Information ..................................................................... 151
V Kernel Tuning 153
12 Installing Multiple Kernel Versions 155
12.1 Enabling and Configuring Multiversion Support .................................. 156
12.2 Installing/Removing Multiple Kernel Versions with YaST ..................... 157
12.3 Installing/Removing Multiple Kernel Versions with zypper ................... 158
13 Tuning I/O Performance 161
13.1 Switching I/O Scheduling ................................................................. 161
13.2 Available I/O Elevators .................................................................... 162
13.3 I/O Barrier Tuning .......................................................................... 164