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Documentation / scsi / link_power_management_policy.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:41 EST.

1	This parameter allows the user to set the link (interface) power management.
2	There are 3 possible options:
3	
4	Value			Effect
5	----------------------------------------------------------------------------
6	min_power		Tell the controller to try to make the link use the
7				least possible power when possible.  This may
8				sacrifice some performance due to increased latency
9				when coming out of lower power states.
10	
11	max_performance		Generally, this means no power management.  Tell
12				the controller to have performance be a priority
13				over power management.
14	
15	medium_power		Tell the controller to enter a lower power state
16				when possible, but do not enter the lowest power
17				state, thus improving latency over min_power setting.
18	
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