On Thu, 17 Jan 2008, Dag-Erling Smørgrav wrote: > "Daniel O'Connor" <doconnor_at_gsoft.com.au> writes: > > One problem with it is that it lags behind actual usage by a few > > seconds (presumably averaging it). > > It is based on the (didle/dt) / (dtotal/dt) fraction computed from > kern.cp_time, which can take a while to ramp up. This is not easily > seen in a cursory reading of the code, as the fraction is computed in > a very roundabout way. I meant the current usage reported by ACPI. Presumably totally up to the BIOS implementation as to how it works.. > > Turning the LCD off saves about 4W too. > > Hmm, it would be interesting to experiment with varying backlight > brightness based on system load :) Heh, sounds like a great way to get a headache 8-) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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