RE: [PATCH] Kick CPUS that might be sleeping in cpus_idle_wait

From: Steven Rostedt
Date: Thu Jan 10 2008 - 13:05:22 EST



On Thu, 10 Jan 2008, Pallipadi, Venkatesh wrote:
>
>
> With 2.6.23, you can try compiling acpi processor.ko as a module and
> doing insmod and rmmod in a loop. That should call cpu_idle_wait very
> frequently.

The thing is, after the full boot, there's too many things going on to
keep a system fully idle. Little services can wake a processor up. The
problem I had was that this happens on early bootup where there's not much
around to wake the sleeping processor.

I'm not sure if it is too much of a problem after boot up.

-- Steve

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