how does all metrics supported by ncu are calculated. Because some of the metrics are with sum counter(ex. dram__bytes) and some of the metrics are with ratios (ex. l1tex__average_t_sectors_per_request) . To get proper understanding of these metrics , I want to know how these metrics are calculated behind the execution of command ( example: ncu --metrics “” --csv --log-file <filename.csv> --clock-control=“none” --cache-control=“none” )
kindly explain in detail and if possible please send any blog or document related to calculation of metrics by ncu .