30 Mar, 2012
1 commit
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Some C states of new CPU might be not good. One reason is BIOS might
configure them incorrectly. To help developers root cause it quickly, the
patch adds a new sysfs entry, so developers could disable specific C state
manually.In addition, C state might have much impact on performance tuning, as it
takes much time to enter/exit C states, which might delay interrupt
processing. With the new debug option, developers could check if a deep C
state could impact performance and how much impact it could cause.Also add this option in Documentation/cpuidle/sysfs.txt.
[akpm@linux-foundation.org: check kstrtol return value]
Signed-off-by: ShuoX Liu
Reviewed-by: Yanmin Zhang
Reviewed-and-Tested-by: Deepthi Dharwar
Signed-off-by: Andrew Morton
Signed-off-by: Len Brown
14 Feb, 2008
1 commit
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Documentation for cpuidle infrastructure. (resend)
Signed-off-by: Venkatesh Pallipadi
Reviewed-by: Randy Dunlap
Signed-off-by: Len Brown
