From: Kan Liang <[email protected]> Caculate the total multiplexing overhead on each CPU, and display them in perf report
Signed-off-by: Kan Liang <[email protected]> --- tools/perf/builtin-report.c | 8 ++++++-- tools/perf/util/event.h | 3 +++ tools/perf/util/machine.c | 5 +++++ tools/perf/util/session.c | 4 ++++ 4 files changed, 18 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index b1437586..2515d7a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -377,9 +377,13 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, continue; if (rep->cpu_list && !test_bit(cpu, rep->cpu_bitmap)) continue; - fprintf(stdout, "#\tCPU %d: NMI#: %" PRIu64 " time: %" PRIu64 " ns\n", - cpu, evlist->stats.total_nmi_overhead[cpu][0], + fprintf(stdout, "#\tCPU %d\n", cpu); + fprintf(stdout, "#\t\tNMI#: %" PRIu64 " time: %" PRIu64 " ns\n", + evlist->stats.total_nmi_overhead[cpu][0], evlist->stats.total_nmi_overhead[cpu][1]); + fprintf(stdout, "#\t\tMultiplexing#: %" PRIu64 " time: %" PRIu64 " ns\n", + evlist->stats.total_mux_overhead[cpu][0], + evlist->stats.total_mux_overhead[cpu][1]); } fprintf(stdout, "#\n"); } diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 7d40d54..70e2508 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -265,6 +265,8 @@ enum auxtrace_error_type { * * The total_nmi_overhead tells exactly the NMI handler overhead on each CPU. * The total NMI# is stored in [0], while the accumulated time is in [1]. + * The total_mux_overhead tells exactly the Multiplexing overhead on each CPU. + * The total rotate# is stored in [0], while the accumulated time is in [1]. */ struct events_stats { u64 total_period; @@ -274,6 +276,7 @@ struct events_stats { u64 total_aux_lost; u64 total_invalid_chains; u64 total_nmi_overhead[MAX_NR_CPUS][2]; + u64 total_mux_overhead[MAX_NR_CPUS][2]; u32 nr_events[PERF_RECORD_HEADER_MAX]; u32 nr_non_filtered_samples; u32 nr_lost_warned; diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 58076f2..eca1f8b 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -563,6 +563,11 @@ int machine__process_overhead_event(struct machine *machine __maybe_unused, event->overhead.entry.nr, event->overhead.entry.time, event->overhead.entry.cpu); + } else if (event->overhead.type == PERF_MUX_OVERHEAD) { + dump_printf(" Multiplexing nr: %llu time: %llu cpu %u\n", + event->overhead.entry.nr, + event->overhead.entry.time, + event->overhead.entry.cpu); } else { dump_printf("\tUNSUPPORT OVERHEAD TYPE 0x%x!\n", event->overhead.type); } diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index a79ab99..594fd5e 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1218,6 +1218,10 @@ overhead_stats_update(struct perf_tool *tool, evlist->stats.total_nmi_overhead[event->overhead.entry.cpu][0] += event->overhead.entry.nr; evlist->stats.total_nmi_overhead[event->overhead.entry.cpu][1] += event->overhead.entry.time; break; + case PERF_MUX_OVERHEAD: + evlist->stats.total_mux_overhead[event->overhead.entry.cpu][0] += event->overhead.entry.nr; + evlist->stats.total_mux_overhead[event->overhead.entry.cpu][1] += event->overhead.entry.time; + break; default: break; } -- 2.5.5
