On Mon, 2005-03-28 at 23:16 +0930, John Steele Scott wrote: > > Aye, this is correct, but it is also true that most of these chips > have a > feature called instruction cache throttling. When this is enabled, you > can > achieve effective frequencies as low as slow_freq/N, where N is > between 2 and > 256. The CPU is still clocked at the same frequency, but the > instruction cache > only gives a real instruction every Nth clock cycle. The rest of the > time the > CPU is executing NOPs, so many of the functional units will be powered > down.
So how advanced is the gnu-linux implementation of this considering that I've heard of an ibook or powerbook coming close to the 5/6 hours OS X claims (not that apple's claims are believable but still a lot better htan my brother's pc laptop). I haven't fiddled around much with the power saving settings on my ibook with debian but I can tell you I get about 2 hours of use as is. This is not impressive. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
