Author: Tom Kerrigan
Date: 19:28:28 06/19/02
Go up one level in this thread
On June 19, 2002 at 18:10:11, Christophe Theron wrote: >On the other hand, there are some processors that really require specific >software to get the best performances. The Crusoe processors come to mind. Both The XScale has the same ISA as the SA, so the issues can't be nearly as complicated as getting a Crusoe to run x86 code. >So maybe the XScale PXA250 really needs something like that. As far as I know, >the speed of this processor is constantly adjusted (hence the name "XScale" >IIRC). So it's not always running at 400MHz (for the nominal 400MHz version). It >is very well possible that this speed adjustement REQUIRES the OS to provide >some important information, like the CPU load or whatever. Sure. But how hard would it be to tell the chip to run at 400MHz on startup (if it doesn't by default)? Probably a few instructions. I'd hardly call this "optimizing" the OS. -Tom
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.