Unholy Matrimony? Microsoft and Cray
fetusbear writes with a ZDNet story that says "'Microsoft and Cray are set to unveil on September 16 the Cray CX1, a compact supercomputer running Windows HPC Server 2008. The pair is expected to tout the new offering as "the most affordable supercomputer Cray has ever offered," with pricing starting at $25,000.' Although this would be the lowest cost hardware ever offered by Cray, it would also be the most expensive desktop ever offered by Microsoft."
Actually, if you go to the Cray site and configure a system, it is available with Red Hat Linux for no cost (getting HPC adds $469)
More importantly, newer kernels *feel* faster. In particular the kernel preemption makes an enormous difference as far as perceived speed goes (for a desktop user).
When I upgraded from 2.4.24 to one of the early 2.6 releases I was astounded at how much faster things felt. On a very modest laptop (1.3 GHz Pentium-M, 512M RAM, 30G 5400 RPM hard drive) from a fresh boot I fired up OpenOffice, Konqueror, Eclipse, Firefox (might have still been Mozilla then, I forget) all at the same time, and the desktop was still liquid smooth and completely responsive. Needless to say, a similar task on 2.4 felt much slower, as actually getting the K menu to open again so I could select another program to start out of it took longer.
Newer kernels are actually faster in a lot of cases too, particularly with scalability, but lots of other optimizations have been done as well, as many kernel developers keep a very close eye on performance. Also, GCC has gotten better over time, and likely optimizes the kernel quite a bit better now than it could several years ago.
Game! - Where the stick is mightier than the sword!