Arjan van de Ven 19379b1181 ondemand: Make the iowait-is-busy time a sysfs tunable ... Pavel Machek pointed out that not all CPUs have an efficient idle at high frequency. Specifically, older Intel and various AMD cpus would get a higher powerusage when copying files from USB. Mike Chan pointed out that the same is true for various ARM chips as well. Thomas Renninger suggested to make this a sysfs tunable with a reasonable default. This patch adds a sysfs tunable for the new behavior, and uses a very simple function to determine a reasonable default, depending on the CPU vendor/type. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: davej@redhat.com LKML-Reference: <20100509082651.46914d04@infradead.org> [ minor tidyup ] Signed-off-by: Ingo Molnar <mingo@elte.hu>		2010-05-09 19:35:27 +02:00
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cpufreq.c	[CPUFREQ] fix a lockdep warning	2010-03-31 12:00:21 -04:00
cpufreq_conservative.c	[CPUFREQ] use max load in conservative governor	2010-03-31 12:00:22 -04:00
cpufreq_ondemand.c	ondemand: Make the iowait-is-busy time a sysfs tunable	2010-05-09 19:35:27 +02:00
cpufreq_performance.c
cpufreq_powersave.c
cpufreq_stats.c
cpufreq_userspace.c
freq_table.c
Kconfig
Makefile