Basically it looks like this for the entire run, apart from periodic rate decay just prior to each window closing) . The disk activity is just flushing downloaded data to the drive. CPU (10 dual) steady at about 85%, RAM (32GiB) steady at about 25%, WAN fluctuating around 1Gbps. Run should complete the entire chain to 840,000 at a total of 90 minutes.
(edited)