239 static double compute_delta(struct hist_entry *he, struct hist_entry *pair)  in compute_delta()  argument
242 	double new_percent = period_percent(pair, pair->stat.period);  in compute_delta()
244 	pair->diff.period_ratio_delta = new_percent - old_percent;  in compute_delta()
245 	pair->diff.computed = true;  in compute_delta()
246 	return pair->diff.period_ratio_delta;  in compute_delta()
249 static double compute_ratio(struct hist_entry *he, struct hist_entry *pair)  in compute_ratio()  argument
252 	double new_period = pair->stat.period;  in compute_ratio()
254 	pair->diff.computed = true;  in compute_ratio()
255 	pair->diff.period_ratio = new_period / old_period;  in compute_ratio()
256 	return pair->diff.period_ratio;  in compute_ratio()
259 static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair)  in compute_wdiff()  argument
262 	u64 new_period = pair->stat.period;  in compute_wdiff()
264 	pair->diff.computed = true;  in compute_wdiff()
265 	pair->diff.wdiff = new_period * compute_wdiff_w2 -  in compute_wdiff()
268 	return pair->diff.wdiff;  in compute_wdiff()
271 static int formula_delta(struct hist_entry *he, struct hist_entry *pair,  in formula_delta()  argument
275 	u64 pair_total = pair->hists->stats.total_period;  in formula_delta()
279 		pair_total = pair->hists->stats.total_non_filtered_period;  in formula_delta()
284 			 pair->stat.period, pair_total,  in formula_delta()
288 static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,  in formula_ratio()  argument
292 	double new_period = pair->stat.period;  in formula_ratio()
297 static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,  in formula_wdiff()  argument
301 	u64 new_period = pair->stat.period;  in formula_wdiff()
308 static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,  in formula_fprintf()  argument
314 		return formula_delta(he, pair, buf, size);  in formula_fprintf()
316 		return formula_ratio(he, pair, buf, size);  in formula_fprintf()
318 		return formula_wdiff(he, pair, buf, size);  in formula_fprintf()
412 		struct hist_entry *pair;  in get_pair_data()  local
414 		list_for_each_entry(pair, &he->pairs.head, pairs.node)  in get_pair_data()
415 			if (pair->hists == d->hists)  in get_pair_data()
416 				return pair;  in get_pair_data()
464 		struct hist_entry *he, *pair;  in hists__precompute()  local
472 			pair = get_pair_data(he, d);  in hists__precompute()
473 			if (!pair)  in hists__precompute()
479 				compute_delta(he, pair);  in hists__precompute()
482 				compute_ratio(he, pair);  in hists__precompute()
485 				compute_wdiff(he, pair);  in hists__precompute()
897 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__color_compare()  local
902 	if (!pair)  in __hpp__color_compare()
907 		if (pair->diff.computed)  in __hpp__color_compare()
908 			diff = pair->diff.period_ratio_delta;  in __hpp__color_compare()
910 			diff = compute_delta(he, pair);  in __hpp__color_compare()
918 		if (pair->diff.computed)  in __hpp__color_compare()
919 			diff = pair->diff.period_ratio;  in __hpp__color_compare()
921 			diff = compute_ratio(he, pair);  in __hpp__color_compare()
929 		if (pair->diff.computed)  in __hpp__color_compare()
930 			wdiff = pair->diff.wdiff;  in __hpp__color_compare()
932 			wdiff = compute_wdiff(he, pair);  in __hpp__color_compare()
981 hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,  in hpp__entry_pair()  argument
991 		if (pair->diff.computed)  in hpp__entry_pair()
992 			diff = pair->diff.period_ratio_delta;  in hpp__entry_pair()
994 			diff = compute_delta(he, pair);  in hpp__entry_pair()
1006 		if (pair->diff.computed)  in hpp__entry_pair()
1007 			ratio = pair->diff.period_ratio;  in hpp__entry_pair()
1009 			ratio = compute_ratio(he, pair);  in hpp__entry_pair()
1022 		if (pair->diff.computed)  in hpp__entry_pair()
1023 			wdiff = pair->diff.wdiff;  in hpp__entry_pair()
1025 			wdiff = compute_wdiff(he, pair);  in hpp__entry_pair()
1032 		formula_fprintf(he, pair, buf, size);  in hpp__entry_pair()
1036 		scnprintf(buf, size, "%" PRIu64, pair->stat.period);  in hpp__entry_pair()
1048 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__entry_global()  local
1055 		if (pair)  in __hpp__entry_global()
1056 			hpp__entry_pair(he, pair, idx, buf, size);  in __hpp__entry_global()