LessWatts.org - Saving Power on Intel systems with Linux

Index
PowerTOP
Tickless Idle
Power Policy Manager
Applications Power Management
Processor Power Management

Introduction
EIST
Intel Dynamic Acceleration Technology
Intel Enhanced Deeper Sleep
FAQ
Downloads

Power and Performance Measurement
BLTK
Linux ACPI
ACPICA
Power QoS
Device and Bus Power Management
Display and Graphics Power Saving

Processor Power Management

Intel Dynamic Acceleration Technology

During execution of single threaded applications, this feature allows one processor core to deliver extra performance, while the other core is idle. All recent Linux kernels that support EIST will also support IDA without requiring any changes. When the processor supports this feature, the /proc/cpuinfo kernel interface will display an "ida" flag, available in Linux kernel version 2.6.23 and later.