Messages in this thread | | | From | David Ahern <> | Subject | [PATCH 0/4] perf events: Add realtime clock event and timehist option -v2 | Date | Mon, 21 Feb 2011 14:02:26 -0700 |
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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 character - remove RAW sample hack for pushing realtime clock event data to userspace - plumbed PERF_SAMPLE_READ to enable retrieving event data during sample generation - 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@ghostprotocols.net> CC: Ingo Molnar <mingo@elte.hu> CC: Peter Zijlstra <peterz@infradead.org> CC: Frederic Weisbecker <fweisbec@gmail.com> CC: Paul Mackerras <paulus@samba.org> CC: Thomas Gleixner <tglx@linutronix.de>
David Ahern (4): perf events: Introduce realtime clock event perf events: plumbing for PERF_SAMPLE_READ and read_format perf events: add timehist option to record and report 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 | 4 + tools/perf/Documentation/perf-report.txt | 6 + tools/perf/builtin-record.c | 113 ++++++++++++++++- tools/perf/builtin-report.c | 208 +++++++++++++++++++++++++++++- tools/perf/builtin-stat.c | 5 +- tools/perf/builtin-test.c | 3 +- tools/perf/util/event.c | 1 + tools/perf/util/event.h | 18 +++- 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 | 16 +++ tools/perf/util/session.h | 9 +- 19 files changed, 507 insertions(+), 15 deletions(-)
-- 1.7.3.4
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