[PATCH] perf: make perf report -D print sampled CPU
in [Kernel]
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From: Stephane Eranian on 28 May 2010 06:10 It is useful to know on which CPU a sample was captured on. The information is captured with perf record -R but it was not printed out by perf report -D. This patch adds this. When -R is not used, cpu is set to -1to indicate that the CPU is unknown (it is not captured). Signed-off-by: Stephane Eranian <eranian(a)google.com> diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 3592057..207da18 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -157,8 +157,9 @@ static int process_sample_event(event_t *event, struct perf_session *session) event__parse_sample(event, session->sample_type, &data); - dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc, - data.pid, data.tid, data.ip, data.period); + dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld cpu:%d\n", + event->header.misc, data.pid, data.tid, data.ip, + data.period, data.cpu); if (session->sample_type & PERF_SAMPLE_CALLCHAIN) { unsigned int i; diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 50771b5..58cb96b 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -770,7 +770,8 @@ int event__parse_sample(event_t *event, u64 type, struct sample_data *data) u32 *p = (u32 *)array; data->cpu = *p; array++; - } + } else + data->cpu = -1; if (type & PERF_SAMPLE_PERIOD) { data->period = *array; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |