3  * builtin-diff.c
5  * Builtin diff command: Analyze two perf.data input files, look up and read
6  * DSOs and symbol information, sort them and produce a diff.
50 /* Diff command specific HPP columns. */
164 		.name  = "Weighted diff",
172 		.name  = "[Program Block Range] Cycles Diff",
285 	pair->diff.period_ratio_delta = new_percent - old_percent;  in compute_delta()
286 	pair->diff.computed = true;  in compute_delta()
287 	return pair->diff.period_ratio_delta;  in compute_delta()
295 	pair->diff.computed = true;  in compute_ratio()
296 	pair->diff.period_ratio = new_period / old_period;  in compute_ratio()
297 	return pair->diff.period_ratio;  in compute_ratio()
305 	pair->diff.computed = true;  in compute_wdiff()
306 	pair->diff.wdiff = new_period * compute_wdiff_w2 -  in compute_wdiff()
309 	return pair->diff.wdiff;  in compute_wdiff()
560 	l = llabs(left->diff.cycles);  in block_cycles_diff_cmp()
561 	r = llabs(right->diff.cycles);  in block_cycles_diff_cmp()
624 	pair->diff.computed = true;  in compute_cycles_diff()
626 		pair->diff.cycles =  in compute_cycles_diff()
633 		init_stats(&pair->diff.stats);  in compute_cycles_diff()
634 		init_spark_values(pair->diff.svals, NUM_SPARKS);  in compute_cycles_diff()
645 			update_spark_value(pair->diff.svals, NUM_SPARKS,  in compute_cycles_diff()
646 					   &pair->diff.stats, val);  in compute_cycles_diff()
647 			update_stats(&pair->diff.stats, val);  in compute_cycles_diff()
753 		double l = left->diff.period_ratio_delta;  in __hist_entry__cmp_compute()
754 		double r = right->diff.period_ratio_delta;  in __hist_entry__cmp_compute()
760 		double l = fabs(left->diff.period_ratio_delta);  in __hist_entry__cmp_compute()
761 		double r = fabs(right->diff.period_ratio_delta);  in __hist_entry__cmp_compute()
767 		double l = left->diff.period_ratio;  in __hist_entry__cmp_compute()
768 		double r = right->diff.period_ratio;  in __hist_entry__cmp_compute()
774 		s64 l = left->diff.wdiff;  in __hist_entry__cmp_compute()
775 		s64 r = right->diff.wdiff;  in __hist_entry__cmp_compute()
1001 		/* Don't sort callchain for perf diff */  in data_process()
1245 	"perf diff [<options>] [old_file] [new_file]",
1371 			  start_line, end_line, block_he->diff.cycles);  in cycles_printf()
1374 			  bi->start, bi->end, block_he->diff.cycles);  in cycles_printf()
1390 	double diff;  in __hpp__color_compare()  local
1408 		if (pair->diff.computed)  in __hpp__color_compare()
1409 			diff = pair->diff.period_ratio_delta;  in __hpp__color_compare()
1411 			diff = compute_delta(he, pair);  in __hpp__color_compare()
1415 					pfmt, diff);  in __hpp__color_compare()
1419 		if (pair->diff.computed)  in __hpp__color_compare()
1420 			diff = pair->diff.period_ratio;  in __hpp__color_compare()
1422 			diff = compute_ratio(he, pair);  in __hpp__color_compare()
1426 					pfmt, diff);  in __hpp__color_compare()
1430 		if (pair->diff.computed)  in __hpp__color_compare()
1431 			wdiff = pair->diff.wdiff;  in __hpp__color_compare()
1531 	ret = print_cycles_spark(spark, sizeof(spark), block_he->diff.svals,  in hpp__color_cycles_hist()
1532 				 block_he->diff.stats.n);  in hpp__color_cycles_hist()
1534 	r = rel_stddev_stats(stddev_stats(&block_he->diff.stats),  in hpp__color_cycles_hist()
1535 			     avg_stats(&block_he->diff.stats));  in hpp__color_cycles_hist()
1577 	double diff;  in hpp__entry_pair()  local
1584 		if (pair->diff.computed)  in hpp__entry_pair()
1585 			diff = pair->diff.period_ratio_delta;  in hpp__entry_pair()
1587 			diff = compute_delta(he, pair);  in hpp__entry_pair()
1589 		scnprintf(buf, size, "%+4.2F%%", diff);  in hpp__entry_pair()
1599 		if (pair->diff.computed)  in hpp__entry_pair()
1600 			ratio = pair->diff.period_ratio;  in hpp__entry_pair()
1615 		if (pair->diff.computed)  in hpp__entry_pair()
1616 			wdiff = pair->diff.wdiff;  in hpp__entry_pair()
1917 	if (!strcmp(var, "diff.order")) {  in diff__config()
1924 	if (!strcmp(var, "diff.compute")) {  in diff__config()