On Thu, 4/28/16, Liam Proven <lproven at gmail.com> wrote: I would agree, given the qualification "relatively." There are several things that have made their way from the late research UNIX editions and Plan 9 to the mainstream UNIX world. The unfortunate part is that they're little bits and pieces and as a result miss the major advantages by not bringing in the big picture. For example, the proc file system that most UNIXs have today was originally in either 9th or 10th edition and is a central part of the design of Plan 9. The _clone() system call that now underlies good old fork() in Linux is basically the Plan 9 rfork() call. Several UNIXs are starting to graft in per-process name spaces. There are also a number of research systems that are bringing in a lot of Plan 9 influence. The only one whose name comes to mind at the moment, though, is Akaros. BLS