Messages in this thread Patch in this message |  | | From | Chenggang Qin <> | Subject | [PATCH 3/4] perf tools: record min_timestamp of samples queue in ordered_samples | Date | Fri, 1 Nov 2013 17:29:05 +0800 |
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Add a field 'min_timestamp' in struct ordered_samples to record the minimial timestamp of the samples in ordered_samples->samples.
Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Yanmin Zhang <yanmin.zhang@intel.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chenggang Qin <chenggang.qcg@taobao.com>
--- tools/perf/util/session.c | 3 +++ tools/perf/util/session.h | 1 + 2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 193bb6a..4e9dd66 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -708,6 +708,9 @@ int perf_session_queue_event(struct perf_session *s, union perf_event *event, new->file_offset = file_offset; new->event = event; + if (list_empty(&os->samples) || os->min_timestamp > timestamp) + os->min_timestamp = timestamp; + __queue_event(new, s); return 0; diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index c9a6c27..7d411b9 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -18,6 +18,7 @@ struct ordered_samples { u64 last_flush; u64 next_flush; u64 max_timestamp; + u64 min_timestamp; struct list_head samples; struct list_head sample_cache; struct list_head to_free; -- 1.7.8.rc2.5.g815b
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