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Re: Bug#110273: ITP: lvcool -- "cools" the AMD K7 (Athlon/Duron) CPU



On Tue, Aug 28, 2001 at 01:36:03AM +0200, Eduard Bloch wrote:
> Noah Meyerhans wrote on Mon Aug 27, 2001 um 01:08:53PM:
> 
> > This tool is not necessary; ACPI support in the kernel will do it
> 
> Wrong. Our stable kernel has no ACPI.

So?  We expect people to need a recompile in some cases.  IPv6 won't
work with our packaged kernels (IPv6 as a module has never really
worked).  Other functionality creates issues as well.

> ...so I compared lvcool, the vcool-kernel-patch (hack from lvcool code
> in the PCI handling) and ACPI's "Processor manager" in kernel. Results:
> the CPU with no extra stuff, just APM and HLT-when-idle has about 55°C.
> With ACPI, it has about 50-52°C. With the vcool-kernel-hack about
> 45-48°C, and with the LVcool <40°C. All this on typical work - mail
> reading, make breaks, typing something, running some script from time to
> time.

Maybe I'm just lucky, but my 1.2 GHz athlon is <40°C with only stock
kernel solutions (i.e. ACPI).

I don't see the point in a user space kludge to get around something
that a simple kernel rebuild will fix.

noah

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