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[CPUFREQ][6/6] cpufreq: Add idle microaccounting in ondemand governor
authorvenkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com>
Mon, 4 Aug 2008 18:59:12 +0000 (11:59 -0700)
committerDave Jones <davej@redhat.com>
Thu, 9 Oct 2008 17:52:44 +0000 (13:52 -0400)
commit808009131046b62ac434dbc796c0fe8accaab415
tree64b5c755b8eb5d43f8e00554032de372f36e7b4ctree | snapshot (tar.gz zip)
parent8083e4ad970e4eb567e31037060cdd4ba346f0c0commit | diff
[CPUFREQ][6/6] cpufreq: Add idle microaccounting in ondemand governor

Use get_cpu_idle_time_us() to get micro-accounted idle information.
This enables ondemand to get more accurate idle and busy timings
than the jiffy based calculation. As a result, we can decrease
the ondemand safety gaurd band from 80-10 to 95-3.

Results in more aggressive power savings.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
drivers/cpufreq/cpufreq_ondemand.c diff | blob | blame | history