269 static double compute_delta(struct hist_entry *he, struct hist_entry *pair)  in compute_delta()  argument
272 	double new_percent = period_percent(pair, pair->stat.period);  in compute_delta()
274 	pair->diff.period_ratio_delta = new_percent - old_percent;  in compute_delta()
275 	pair->diff.computed = true;  in compute_delta()
276 	return pair->diff.period_ratio_delta;  in compute_delta()
279 static double compute_ratio(struct hist_entry *he, struct hist_entry *pair)  in compute_ratio()  argument
282 	double new_period = pair->stat.period;  in compute_ratio()
284 	pair->diff.computed = true;  in compute_ratio()
285 	pair->diff.period_ratio = new_period / old_period;  in compute_ratio()
286 	return pair->diff.period_ratio;  in compute_ratio()
289 static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair)  in compute_wdiff()  argument
292 	u64 new_period = pair->stat.period;  in compute_wdiff()
294 	pair->diff.computed = true;  in compute_wdiff()
295 	pair->diff.wdiff = new_period * compute_wdiff_w2 -  in compute_wdiff()
298 	return pair->diff.wdiff;  in compute_wdiff()
301 static int formula_delta(struct hist_entry *he, struct hist_entry *pair,  in formula_delta()  argument
305 	u64 pair_total = pair->hists->stats.total_period;  in formula_delta()
309 		pair_total = pair->hists->stats.total_non_filtered_period;  in formula_delta()
314 			 pair->stat.period, pair_total,  in formula_delta()
318 static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,  in formula_ratio()  argument
322 	double new_period = pair->stat.period;  in formula_ratio()
327 static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,  in formula_wdiff()  argument
331 	u64 new_period = pair->stat.period;  in formula_wdiff()
338 static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,  in formula_fprintf()  argument
344 		return formula_delta(he, pair, buf, size);  in formula_fprintf()
346 		return formula_ratio(he, pair, buf, size);  in formula_fprintf()
348 		return formula_wdiff(he, pair, buf, size);  in formula_fprintf()
493 		struct hist_entry *pair;  in get_pair_data()  local
495 		list_for_each_entry(pair, &he->pairs.head, pairs.node)  in get_pair_data()
496 			if (pair->hists == d->hists)  in get_pair_data()
497 				return pair;  in get_pair_data()
693 				struct hist_entry *pair)  in compute_cycles_diff()  argument
695 	pair->diff.computed = true;  in compute_cycles_diff()
696 	if (pair->block_info->num && he->block_info->num) {  in compute_cycles_diff()
697 		pair->diff.cycles =  in compute_cycles_diff()
698 			pair->block_info->cycles_aggr / pair->block_info->num_aggr -  in compute_cycles_diff()
712 		struct hist_entry *pair = get_block_pair(he, hists_pair);  in block_hists_match()  local
716 		if (pair) {  in block_hists_match()
717 			hist_entry__add_pair(pair, he);  in block_hists_match()
718 			compute_cycles_diff(he, pair);  in block_hists_match()
743 		struct hist_entry *he, *pair;  in hists__precompute()  local
754 			pair = get_pair_data(he, d);  in hists__precompute()
755 			if (!pair)  in hists__precompute()
761 				compute_delta(he, pair);  in hists__precompute()
764 				compute_ratio(he, pair);  in hists__precompute()
767 				compute_wdiff(he, pair);  in hists__precompute()
770 				process_block_per_sym(pair);  in hists__precompute()
772 				pair_bh = container_of(pair, struct block_hist,  in hists__precompute()
1329 static int cycles_printf(struct hist_entry *he, struct hist_entry *pair,  in cycles_printf()  argument
1333 	struct block_hist *bh_pair = container_of(pair, struct block_hist, he);  in cycles_printf()
1378 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__color_compare()  local
1383 	if (!pair) {  in __hpp__color_compare()
1397 		if (pair->diff.computed)  in __hpp__color_compare()
1398 			diff = pair->diff.period_ratio_delta;  in __hpp__color_compare()
1400 			diff = compute_delta(he, pair);  in __hpp__color_compare()
1408 		if (pair->diff.computed)  in __hpp__color_compare()
1409 			diff = pair->diff.period_ratio;  in __hpp__color_compare()
1411 			diff = compute_ratio(he, pair);  in __hpp__color_compare()
1419 		if (pair->diff.computed)  in __hpp__color_compare()
1420 			wdiff = pair->diff.wdiff;  in __hpp__color_compare()
1422 			wdiff = compute_wdiff(he, pair);  in __hpp__color_compare()
1429 		return cycles_printf(he, pair, hpp, dfmt->header_width);  in __hpp__color_compare()
1479 hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,  in hpp__entry_pair()  argument
1489 		if (pair->diff.computed)  in hpp__entry_pair()
1490 			diff = pair->diff.period_ratio_delta;  in hpp__entry_pair()
1492 			diff = compute_delta(he, pair);  in hpp__entry_pair()
1504 		if (pair->diff.computed)  in hpp__entry_pair()
1505 			ratio = pair->diff.period_ratio;  in hpp__entry_pair()
1507 			ratio = compute_ratio(he, pair);  in hpp__entry_pair()
1520 		if (pair->diff.computed)  in hpp__entry_pair()
1521 			wdiff = pair->diff.wdiff;  in hpp__entry_pair()
1523 			wdiff = compute_wdiff(he, pair);  in hpp__entry_pair()
1530 		formula_fprintf(he, pair, buf, size);  in hpp__entry_pair()
1534 		scnprintf(buf, size, "%" PRIu64, pair->stat.period);  in hpp__entry_pair()
1546 	struct hist_entry *pair = get_pair_fmt(he, dfmt);  in __hpp__entry_global()  local
1553 		if (pair)  in __hpp__entry_global()
1554 			hpp__entry_pair(he, pair, idx, buf, size);  in __hpp__entry_global()