Documentation the new computation selection 'cycles'.
Signed-off-by: Jin Yao <yao....@linux.intel.com>
---
tools/perf/Documentation/perf-diff.txt | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/tools/perf/Documentation/perf-diff.txt
b/tools/perf/Documentation/perf-diff.txt
index facd91e..73903d2 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -90,9 +90,10 @@ OPTIONS
-c::
--compute::
- Differential computation selection - delta, ratio, wdiff, delta-abs
- (default is delta-abs). Default can be changed using diff.compute
- config option. See COMPARISON METHODS section for more info.
+ Differential computation selection - delta, ratio, wdiff, cycles,
+ delta-abs (default is delta-abs). Default can be changed using
+ diff.compute config option. See COMPARISON METHODS section for
+ more info.
-p::
--period::
@@ -280,6 +281,13 @@ If specified the 'Weighted diff' column is displayed with
value 'd' computed as:
- WEIGHT-A being the weight of the data file
- WEIGHT-B being the weight of the baseline data file
+cycles
+~~~~~~
+If specified the 'Block cycles diff [start:end]' column is displayed.
+It displays the cycles difference of same program basic block amongst
+two perf.data. The program basic block is the code block between
+two branches in a function (indicated by [start:end]).
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]
--
2.7.4
