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

["Theodore Ts'o" <tytso@mit.edu>]

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
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