perf/Documentation/perf-diff.txt

1 perf-diff(1)
6 perf-diff - Read perf.data files and display the differential profile
11 'perf diff' [baseline file] [data file1] [[data file2] ... ]
25 could vary. So perf diff is based on the comparison of the files and
74 	diff.
95         diff.compute config option.  See COMPARISON METHODS section for
117        The default value can be set using the diff.order config option.
134 	Select the second 10% time slice to diff:
136 	  perf diff --time 10%/2
138 	Select from 0% to 10% time slice to diff:
140 	  perf diff --time 0%-10%
142 	Select the first and the second 10% time slices to diff:
144 	  perf diff --time 10%/1,10%/2
146 	Select from 0% to 10% and 30% to 40% slices to diff:
148 	  perf diff --time 0%-10%,30%-40%
168 	  perf diff --time 3946.361400,:3971.150589,
174 --cpu:: Only diff samples for the list of CPUs provided. Multiple CPUs can
180 	Only diff samples for given process ID (comma separated list).
183 	Only diff samples for given thread ID (comma separated list).
209 - perf diff A B C
220 - perf diff B A C
231 - perf diff C B A
279 If specified the 'Weighted diff' column is displayed with value 'd' computed as:
295 If specified the '[Program Block Range] Cycles Diff' column is displayed.