1.3GHz Duron Arrives
zebadee writes: "Tom's Hardware has the news that AMD have released a 1.3GHz Duron to the "mainstream PC market" that has been optimised for use with WindowsXP. The article also asks 'why haven't AMD gone with the MHz doesn't equal performance as they have done with the new XP/MP chips, as it would be assumed the market for these will be consumers who don't generally look at benchmark figures?' More information can be found at the AMD website."
One day, the makers of a processor for a particular computer system decided to be developers for a day, and do some profiling. They found a particular sequence of several instructions that was being executed quite often, and they figured they could speed up the entire system by adding an instruction to the CPU that carried out that particular operation in fewer clock cycles.
They did their redesign, and tested the new system. There was no speedup.
They had optimized the operating system's idle loop.