tag:blogger.com,1999:blog-1174675060757953362.post996983335032275176..comments2009-06-04T20:00:29.837+01:00John Levonhttp://www.blogger.com/profile/06852503973350767763noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1174675060757953362.post-56572946983103283202009-06-04T20:00:29.837+01:002009-06-04T20:00:29.837+01:00You haven't answered the question, Matthew. I wasn't asking about costs (I'm more aware than many on how Xen support impacts kernel complexity).John Levonhttp://www.blogger.com/profile/06852503973350767763noreply@blogger.comtag:blogger.com,1999:blog-1174675060757953362.post-38664168582209339482009-06-04T19:42:52.453+01:002009-06-04T19:42:52.453+01:00x86_64 imposed no significant cost (in terms of run-time performance or code complexity) on the rest of the kernel. Xen adds extra complexity to code used by a large number of people but benefits a significantly smaller number of people. The cost/benefit ratios of the two are almost directly opposite.Matthew Garretthttp://www.blogger.com/profile/10476767032912504787noreply@blogger.com