Liu, Jinsong
2009-Apr-13 10:55 UTC
[Xen-devel] [PATCH] Fix cpufreq HW-ALL coordination handle
Fix cpufreq HW-ALL coordination handle
Currently cpufreq HW-ALL coordination is handled same way as SW-ALL.
However, SW-ALL will bring more IPIs which is bad for cpuidle.
This patch implement HW-ALL coordination handled in different way from SW-ALL,
for the sake of performance and reduce IPIs. We also suspend/resume HW-ALL dbs
timer for idle.
Signed-off-by: Yu, Ke <ke.yu@intel.com>
Liu, Jinsong <jinsong.liu@intel.com>
Tian, Kevin <kevin.tian@intel.com>
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