Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1738156

[PATCH v2 0/4] perf script: Add script per-event-dump support

Show all headers | View raw

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 cs -ag -- sleep 10
         $perf script --per-event-dump
         $ls /
         perf.data-script-dump-cycles.txt perf.data-script-dump-cs.txt

 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
  Add fp argument to print functions
  Replace printf with fprintf for all print functions
  Make all print functions receive the fp argument, and opens a dump    
    file in process_event.

changes in v2:
	- remove the set of script.tool.per_event_dump variable.
	- add the __maybe_unused attribute for the fp argument in the second patch.
	- remove the fp_selection_helper function for setting the fp argument.
	- split the original second patch(Makes all those related functions receive the FILE pointer) to two patches.
	- modify the file name of per-event-dump to <ORIGINAL PERF DATA FILE NAME>-script-dump-<EVENT NAME>.txt

 tools/perf/builtin-script.c | 452 ++++++++++++++++++++++++--------------------
 tools/perf/util/tool.h      |   1 +
 2 files changed, 250 insertions(+), 203 deletions(-)

-- 
1.8.3.1

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH v2 0/4] perf script: Add script per-event-dump support yuzhoujian <ufo19890607@gmail.com> - 2017-09-24 13:20 +0200
  [PATCH v2 1/4] Add a new element for the struct perf_tool, and add the --per-event-dump option for perf script yuzhoujian <ufo19890607@gmail.com> - 2017-09-24 13:20 +0200
    Re: [PATCH v2 1/4] Add a new element for the struct perf_tool, and  add the --per-event-dump option for perf script Jiri Olsa <jolsa@redhat.com> - 2017-09-25 15:00 +0200
      Re: [PATCH v2 1/4] Add a new element for the struct perf_tool, and  add the --per-event-dump option for perf script David Ahern <dsahern@gmail.com> - 2017-09-26 04:50 +0200
  [PATCH v2 3/4] Replace printf with fprintf for all print functions yuzhoujian <ufo19890607@gmail.com> - 2017-09-24 13:20 +0200
  [PATCH v2 2/4] Add fp argument to print functions yuzhoujian <ufo19890607@gmail.com> - 2017-09-24 13:20 +0200
  [PATCH v2 4/4] Make all print functions receive the fp argument, and opens a dump file in process_event. yuzhoujian <ufo19890607@gmail.com> - 2017-09-24 13:20 +0200

csiph-web