For some more insight, Dillon explained it here a few years ago: http://leaf.dragonflybsd.org/mailarchive/users/2010-12/msg00079.html //Jonas
-- Jonas 2014-02-09 21:26 GMT+01:00 John Marino <[email protected]>: > On 2/9/2014 21:17, Justin Sherrill wrote: > > You are the second person to mention this that I've heard in the last > > few days. I remember that there was some arbitrary limit on processor > > count in DragonFly - 63, I think. I don't know how much of an obstacle > > that actually is. > > > > It's not arbitrary. > It's 2^6-1 -- IIUC there are only 6 bits available on some key location > although I am missing some information to explain why the limit isn't 64. > > Anyway, apparently it will take some significant rework to increase the > max CPU count, but I'll leave that for Matt to explain. > > John >
