Messages in this thread Patch in this message | | | From | Jin Yao <> | Subject | [PATCH v5 7/7] perf diff: Documentation -c cycles option | Date | Thu, 27 Jun 2019 22:09:29 +0800 |
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Documentation the new computation selection 'cycles'.
v4: --- Change the column 'Block cycles diff [start:end]' to '[Program Block Range] Cycles Diff'
Signed-off-by: Jin Yao <yao.jin@linux.intel.com> --- tools/perf/Documentation/perf-diff.txt | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt index facd91e..d5cc15e 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 +281,16 @@ 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 '[Program Block Range] Cycles Diff' column is displayed. +It displays the cycles difference of same program basic block amongst +two perf.data. The program basic block is the code between two branches. + +'[Program Block Range]' indicates the range of a program basic block. +Source line is reported if it can be found otherwise uses symbol+offset +instead. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-report[1] -- 2.7.4
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