+S_PER_EVENT=$(echo "( ($time_trace) - ($time_notrace) ) / $ITERS / $NR_EVENTS" | bc -l)
+NS_PER_EVENT=$(echo "$S_PER_EVENT * 1000000000" | bc -l)
+# Remove fractions
+NS_PER_EVENT=${NS_PER_EVENT%%.*}
+
+diag "Average tracing overhead per event is ${NS_PER_EVENT}ns"