Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S940973AbcKWRqu (ORCPT ); Wed, 23 Nov 2016 12:46:50 -0500 Received: from mga14.intel.com ([192.55.52.115]:40054 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S938687AbcKWRpB (ORCPT ); Wed, 23 Nov 2016 12:45:01 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,539,1473145200"; d="scan'208";a="1072652958" From: kan.liang@intel.com To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, linux-kernel@vger.kernel.org Cc: alexander.shishkin@linux.intel.com, tglx@linutronix.de, namhyung@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, wangnan0@huawei.com, mark.rutland@arm.com, andi@firstfloor.org, Kan Liang Subject: [PATCH 07/14] perf tools: show multiplexing overhead Date: Wed, 23 Nov 2016 04:44:45 -0500 Message-Id: <1479894292-16277-8-git-send-email-kan.liang@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1479894292-16277-1-git-send-email-kan.liang@intel.com> References: <1479894292-16277-1-git-send-email-kan.liang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3493 Lines: 87 From: Kan Liang Caculate the total multiplexing overhead on each CPU, and display them in perf report Signed-off-by: Kan Liang --- 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