fix real time reported by bwc. Also report when some stats are missing.
fix real time reported by bwc. Also report when some stats are missing.

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs