The v2.6 kernel stakes a claim to the corporate datacenter. But can the new penguin walk the walk? To find out, we tested file server, Web server, and database performance on Xeon, Itanium, and Opteron. http://newsletter.infoworld.com/t?ctl=52E1CB:1F5C3D3 -- "...Linux, MS-DOS, and Windows XP (also known as the Good, the Bad, and the Ugly)."