Messages in this thread | | | From | yuzhoujian <> | Subject | [PATCH 0/4] perf script: Add script per-event-dump support | Date | Mon, 18 Sep 2017 13:55:18 +0800 |
| |
Introduce a new option to print trace output to files named by the monitored events and update perf-script documentation accordingly.
Shown below is output of perf script command with the newly introduced option.
$perf record -e cycles -e context-switches -ag -- sleep 10 $perf script --per-event-dump $ls / cycles.stacks context-switches.stacks
Without per-event-dump support, drawing flamegraphs for different events is really hard. You can only monitor one event at a time for perf record. Using this option, we can get the trace output files named by the monitored events, and could draw flamegraphs according to the event's name.
yuzhoujian (4): Add a new element for the struct perf_tool, and add the --per-event-dump option for perf script Makes all those related functions receive the FILE pointer Add the fp_selection_helper function to set the file pointer for the related functions Replace printf with fprintf for all the output functions
tools/perf/builtin-script.c | 451 +++++++++++++++++++++++++------------------- tools/perf/util/tool.h | 1 + 2 files changed, 253 insertions(+), 199 deletions(-)
-- 1.8.3.1
| |