227 static double compute_delta(struct hist_entry *he, struct hist_entry *pair)  in compute_delta()  argument
230 	double new_percent = period_percent(pair, pair->stat.period);  in compute_delta()
232 	pair->diff.period_ratio_delta = new_percent - old_percent;  in compute_delta()
233 	pair->diff.computed = true;  in compute_delta()
234 	return pair->diff.period_ratio_delta;  in compute_delta()
237 static double compute_ratio(struct hist_entry *he, struct hist_entry *pair)  in compute_ratio()  argument
240 	double new_period = pair->stat.period;  in compute_ratio()
242 	pair->diff.computed = true;  in compute_ratio()
243 	pair->diff.period_ratio = new_period / old_period;  in compute_ratio()
244 	return pair->diff.period_ratio;  in compute_ratio()
247 static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair)  in compute_wdiff()  argument
250 	u64 new_period = pair->stat.period;  in compute_wdiff()
252 	pair->diff.computed = true;  in compute_wdiff()
253 	pair->diff.wdiff = new_period * compute_wdiff_w2 -  in compute_wdiff()
256 	return pair->diff.wdiff;  in compute_wdiff()
259 static int formula_delta(struct hist_entry *he, struct hist_entry *pair,  in formula_delta()  argument
263 	u64 pair_total = pair->hists->stats.total_period;  in formula_delta()
267 		pair_total = pair->hists->stats.total_non_filtered_period;  in formula_delta()
272 			 pair->stat.period, pair_total,  in formula_delta()
276 static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,  in formula_ratio()  argument
280 	double new_period = pair->stat.period;  in formula_ratio()
285 static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,  in formula_wdiff()  argument
289 	u64 new_period = pair->stat.period;  in formula_wdiff()
296 static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,  in formula_fprintf()  argument
301 		return formula_delta(he, pair, buf, size);  in formula_fprintf()
303 		return formula_ratio(he, pair, buf, size);  in formula_fprintf()
305 		return formula_wdiff(he, pair, buf, size);  in formula_fprintf()
409 		struct hist_entry *pair;  in get_pair_data()  local
411 		list_for_each_entry(pair, &he->pairs.head, pairs.node)  in get_pair_data()
412 			if (pair->hists == d->hists)  in get_pair_data()
413 				return pair;  in get_pair_data()
461 		struct hist_entry *he, *pair;  in hists__precompute()  local
469 			pair = get_pair_data(he, d);  in hists__precompute()
470 			if (!pair)  in hists__precompute()
475 				compute_delta(he, pair);  in hists__precompute()
478 				compute_ratio(he, pair);  in hists__precompute()
481 				compute_wdiff(he, pair);  in hists__precompute()
866 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__color_compare()  local
871 	if (!pair)  in __hpp__color_compare()
876 		if (pair->diff.computed)  in __hpp__color_compare()
877 			diff = pair->diff.period_ratio_delta;  in __hpp__color_compare()
879 			diff = compute_delta(he, pair);  in __hpp__color_compare()
887 		if (pair->diff.computed)  in __hpp__color_compare()
888 			diff = pair->diff.period_ratio;  in __hpp__color_compare()
890 			diff = compute_ratio(he, pair);  in __hpp__color_compare()
898 		if (pair->diff.computed)  in __hpp__color_compare()
899 			wdiff = pair->diff.wdiff;  in __hpp__color_compare()
901 			wdiff = compute_wdiff(he, pair);  in __hpp__color_compare()
950 hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,  in hpp__entry_pair()  argument
959 		if (pair->diff.computed)  in hpp__entry_pair()
960 			diff = pair->diff.period_ratio_delta;  in hpp__entry_pair()
962 			diff = compute_delta(he, pair);  in hpp__entry_pair()
974 		if (pair->diff.computed)  in hpp__entry_pair()
975 			ratio = pair->diff.period_ratio;  in hpp__entry_pair()
977 			ratio = compute_ratio(he, pair);  in hpp__entry_pair()
990 		if (pair->diff.computed)  in hpp__entry_pair()
991 			wdiff = pair->diff.wdiff;  in hpp__entry_pair()
993 			wdiff = compute_wdiff(he, pair);  in hpp__entry_pair()
1000 		formula_fprintf(he, pair, buf, size);  in hpp__entry_pair()
1004 		scnprintf(buf, size, "%" PRIu64, pair->stat.period);  in hpp__entry_pair()
1016 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__entry_global()  local
1023 		if (pair)  in __hpp__entry_global()
1024 			hpp__entry_pair(he, pair, idx, buf, size);  in __hpp__entry_global()