Re: Power consumption HZ100, HZ250, HZ1000: new numbers

Theodore Ts'o
2005-08-01T21:40:16Z

On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote:
>
> The tradeoff is a realistic 4.4% power savings vs a 300% increase in the
> minimum sleep period. A user will see zero power savings if they have a
> USB mouse (probably 99% of desktops). On top of that, we can throw in
> Con's disturbing AV benchmark results (1). As a result, some of us
> don't think 250HZ is a great tradeoff to make _for_the_default_value_.

Most laptops (including mine, a Thinkpad T40) use a PS/2 mouse. So in
the places where power consumption savins matters most, it's usually
quite possible to function without needing any USB devices. The 90%
figure isn't at all right; in fact, it may be that over 90% of the
laptops still use PS/2 mice and keyboards.

- Ted