Xen devel - Jan 2010 - [PATCH] Change default cpufreq governor to ondemand

Back in c/s 18950 the default cpufreq governor was set to userspace (it 
had previously been performance).  However, since there is no supplied 
userspace program or script that will change the frequency this is at 
best a no-op.  Worse, on some hardware with some BIOS revisions, this 
actually sets the CPUs running at their lowest frequency rather than 
their highest and there is a corresponding (and initially puzzling) drop 
in performance.

This patch changes the default governor to "ondemand" which should
make
it the same as the Linux default and will provide power savings for the 
majority without needing to write a userspace governor.  For those that 
want to install their own governor, that is still possible.

Signed-off-by: John Haxby <john.haxby@oracle.com>


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On 15/01/10 16:25, John Haxby wrote:
> +#define CPUFREQ_DEFAULT_GOVERNOR&cpufreq_gov_dbs;
Thanks for fixing the typo, Kier.

jch


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