XO 1.5 frequency scaling

Martin Langhoff martin.langhoff at gmail.com
Tue May 4 19:51:48 EDT 2010


On Tue, May 4, 2010 at 7:01 PM, Tiago Marques <tiagomnm at gmail.com> wrote:
> Let me see if I understand what you said. I understand how it works on
> desktop and regular laptops. You load the module for the specific power
> saving feature and either a kernel module to do the job

I am far from being a true expert in the topic, but I think your
understanding dates back to an earlier era. Do read the LWN writeup
(should get out of paywall today/tomorrow)
http://lwn.net/Articles/384146/ -- also the website where powertop is
hosted/discussed has excellent info.

Running powertop on your machine is hugely informational once you've
read the powertop website docs.

> Now the XO 1.5, AFAIK, isn't doing it

the kernel is doing its part, and powerd is doing the other part...

hth,

m
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 martin at laptop.org -- School Server Architect
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