kernel module options for cpufreq

[John Reiser]

Richard Hughes wrote:
> In an ideal world we would:

> * compile into the kernel CONFIG_CPU_FREQ_GOV_ONDEMAND -- we really
> want to be running this on all systems that support it
> * set ONDEMAND or PERFORMANCE to default as USERSPACE is just changed
> to something else by cpuspeed. You really don't want to be using
> USERSPACE at all.

How can an administrator set a known constant frequency, so that the CPU
might be able to deliver the same amount of work per unit time,
over a span of half an hour?  Some performance measurement and tuning
is much simpler when this is so.

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