[PATCH 0/6 v3] perf events: Add realtime clock event, time-of-day strings to script output

From: David Ahern
Date: Sun Feb 27 2011 - 22:52:28 EST

v2 -> v3:
- changed timehist arg in perf-record to tod to better reflect usage
- removed timehist changes from perf-report
- added dumping software events to perf-script
- added time-of-day output to perf-script

v1 -> v2:
- removed change to WARN_ON_ONCE in perf_event.c
- fixed init of realtime_clock event (needed call to perf_swevent_init_hrtimer)
- changed userspace event name to clock-realtime with the alias clkr as the
raw events code sucks up all options that start with 'r' followed by a hex
- remove RAW sample hack for pushing realtime clock event data to userspace
- plumbed PERF_SAMPLE_READ to enable retrieving event data during sample
- add patch to perf-stat to recognize realtime-clock as a nsec counter
- implementation of tiemhist in perf-record was revamped significantly
-- to use event data,
-- to better handle fallback to synthesized event,
-- added feature to force a sample to be generated at startup (to output
wall-clock times we need a sample immediately; after that realtime-clock
samples are generated periodically)
-- change counter creation to be done only on first cpu; we do not need a
counter for each cpu

A request was made to modify perf-trace and perf-script. From what I can see
perf-trace does not exist yet and perf-script requires raw data which means
it does not work for the primary use case that motivated this feature
(perf record -e cs -1 -ag).

CC: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
CC: Ingo Molnar <mingo@xxxxxxx>
CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CC: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CC: Paul Mackerras <paulus@xxxxxxxxx>
CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

David Ahern (6):
perf events: Introduce realtime clock event
perf events: plumbing for PERF_SAMPLE_READ and read_format
perf record: add time-of-day option
perf script: dump software events too
perf script: Prepend lines with time-of-day string
perf stat: treat realtime-clock as nsec counter

include/linux/perf_event.h | 2 +
kernel/perf_event.c | 85 ++++++++++++++++++++++
tools/perf/Documentation/perf-record.txt | 5 ++
tools/perf/builtin-record.c | 115 +++++++++++++++++++++++++++++-
tools/perf/builtin-script.c | 89 ++++++++++++++++++++++--
tools/perf/builtin-stat.c | 5 +-
tools/perf/builtin-test.c | 3 +-
tools/perf/util/event.c | 96 +++++++++++++++++++++++++
tools/perf/util/event.h | 28 +++++++-
tools/perf/util/evlist.c | 2 +-
tools/perf/util/evlist.h | 2 +
tools/perf/util/evsel.c | 24 ++++++-
tools/perf/util/header.c | 18 +++++
tools/perf/util/header.h | 1 +
tools/perf/util/parse-events.c | 2 +
tools/perf/util/python.c | 3 +-
tools/perf/util/session.c | 114 +++++++++++++++++++++++++++++
tools/perf/util/session.h | 12 +++-
18 files changed, 588 insertions(+), 18 deletions(-)


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