Xen runs unmodified domUs with Socket AM2 CPUs

October 11, 2006

Xen can run unmodified DomUs (guest OSs), including Windows or potentially any x86 or x86_64 OS, if your CPU supports Intel VT (aka Vanderpool) or AMD-V (aka Pacifica and SVM). I’ve always known that in theory, but I guess I haven’t been keeping up with the news. It turns out all Athlon64 CPUs for the new Socket AM2 (and apparently some or all Pentium D Preslers) support SVM, and the latest Xen 3.0.2 can use that.

Read the rest of this entry »


Our crippled lingua franca

September 23, 2006

Dr. David Brin complains (first and second blog posts) that kids today can’t learn the basics of programming in a way that is fun and, above, all, trivially accessible to every computer-owner. There’s no lingua franca of modern programming – a language that is both ubiquitous (comes with every PC) and accessible (very simple and suitable to learning basic imperative programming).

A storm of comments was generated by the Salon article. Most respondents didn’t seem to understand Brin’s real points. To be fair, the article itself was rather misleading. In any event, I’m responding here to what Brin wrote in his later replies, the first of which is here, starting with the words “your letter is cogent and intelligent”. (Permalinks to individual comments on Blogger don’t seem to be working.)

Read the rest of this entry »