hists__total_period
u64 total = hists__total_period(hists);
u64 total = hists__total_period(he->hists);
u64 total = hists__total_period(he->hists);
u64 total = hists__total_period(entry->hists);
u64 total = hists__total_period(hb->hists);
u64 total = hists__total_period(h->hists);
u64 total = hists__total_period(hists);
u64 total = fmtype == PERF_HPP_FMT_TYPE__PERCENT ? hists__total_period(hists) :
u64 total = hists__total_period(hists);
u64 hists__total_period(struct hists *hists);
u64 total_period = hists__total_period(he->hists);