Chuck Ebbert wrote:
On 07/05/2007 03:58 PM, Arjan van de Ven wrote:
While it's hard to show "one size fits all" number/percentage, we took a
bog standard Lenovo T61 laptop (no vendor preference, they just were the
first one to deliver a model with the latest Intel chipset to our cubes)
and measured the effect. The baseline we used was a 32 bit Fedora 7
installation; note that this already has the tickless kernel, but is
lacking several of the key bugfixes that came afterwards.
We've put our measurements in a graph at
http://ww.linuxpowertop.org/results.php
With kernel fixes and features, the power consumption of this laptop
went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes
the power consumption ended up at 15.5 Watts.
Where is the ondemand-fix.patch? I can't find any link to it.
just click on it in the graph ;_
it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch
(which is submitted already to the maintainers)
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