Datapoint: 3 hrs 45 min to build a 1.4.1 _configured_ kernel from scratch on a uVAX 3900 with no swapping (64MB RAM), this machine is 4x the speed of my uVAX II so for a uVAX II figure on 15 hrs start to finish. I emphasize configured because I don't build stuff I don't have (like scsi stuff or the frame buffer support etc) --Chuck