Embedded Linux Power Management on the Intel Atom ... - MontaVista
Embedded Linux Power Management on the Intel Atom ... - MontaVista
Embedded Linux Power Management on the Intel Atom ... - MontaVista
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The Governor<br />
• Task: Decide how and when to change<br />
operating points.<br />
• Four opti<strong>on</strong>s provided:<br />
• performance: statically set highest power<br />
operating point<br />
• powersave: statically set lowest power<br />
operating point<br />
• userspace: permit any applicati<strong>on</strong> running<br />
as root to set <strong>the</strong> operating point<br />
• <strong>on</strong>demand: set <strong>the</strong> operating point based<br />
<strong>on</strong> current CPU usage
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