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Groups > linux.kernel > #1528649
| From | kan.liang@intel.com |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 08/14] perf tools: show side-band events overhead |
| Date | 2016-11-23 18:50 +0100 |
| Message-ID | <sGJQe-7SF-29@gated-at.bofh.it> (permalink) |
| References | <sGJQd-7SF-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Kan Liang <kan.liang@intel.com>
Caculate the total overhead from accessing side-band events handler
function, and display them in perf report
Signed-off-by: Kan Liang <kan.liang@intel.com>
---
tools/perf/builtin-report.c | 3 +++
tools/perf/util/event.h | 5 +++++
tools/perf/util/machine.c | 5 +++++
tools/perf/util/session.c | 4 ++++
4 files changed, 17 insertions(+)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 2515d7a..9c0a424 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -384,6 +384,9 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
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, "#\t\tSB#: %" PRIu64 " time: %" PRIu64 " ns\n",
+ evlist->stats.total_sb_overhead[cpu][0],
+ evlist->stats.total_sb_overhead[cpu][1]);
}
fprintf(stdout, "#\n");
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 70e2508..3357529 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -267,6 +267,10 @@ enum auxtrace_error_type {
* 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].
+ * The total_sb_overhead tells exactly the overhead to output side-band
+ * events on each CPU.
+ * The total number of accessing side-band events handler function is stored
+ * in [0], while the accumulated processing time is in [1].
*/
struct events_stats {
u64 total_period;
@@ -277,6 +281,7 @@ struct events_stats {
u64 total_invalid_chains;
u64 total_nmi_overhead[MAX_NR_CPUS][2];
u64 total_mux_overhead[MAX_NR_CPUS][2];
+ u64 total_sb_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 eca1f8b..d8cde21 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -568,6 +568,11 @@ 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_SB_OVERHEAD) {
+ dump_printf(" SB 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 594fd5e..e3aa9d7 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1222,6 +1222,10 @@ overhead_stats_update(struct perf_tool *tool,
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;
+ case PERF_SB_OVERHEAD:
+ evlist->stats.total_sb_overhead[event->overhead.entry.cpu][0] += event->overhead.entry.nr;
+ evlist->stats.total_sb_overhead[event->overhead.entry.cpu][1] += event->overhead.entry.time;
+ break;
default:
break;
}
--
2.5.5
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 00/14] export perf overheads information kan.liang@intel.com - 2016-11-23 18:50 +0100
[PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:20 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:20 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:50 +0100
RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 14:50 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 15:00 +0100
RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 15:10 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 15:30 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Jiri Olsa <jolsa@redhat.com> - 2016-11-24 15:50 +0100
RE: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 15:50 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Andi Kleen <andi@firstfloor.org> - 2016-11-24 19:30 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 20:00 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Andi Kleen <andi@firstfloor.org> - 2016-11-24 20:10 +0100
Re: [PATCH 01/14] perf/x86: Introduce PERF_RECORD_OVERHEAD Peter Zijlstra <peterz@infradead.org> - 2016-11-24 20:10 +0100
[PATCH 11/14] perf tools: record write data overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 11/14] perf tools: record write data overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:10 +0100
Re: [PATCH 11/14] perf tools: record write data overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:20 +0100
[PATCH 04/14] perf/x86: output side-band events overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 04/14] perf/x86: output side-band events overhead Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:10 +0100
Re: [PATCH 04/14] perf/x86: output side-band events overhead Mark Rutland <mark.rutland@arm.com> - 2016-11-24 17:30 +0100
RE: [PATCH 04/14] perf/x86: output side-band events overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 20:50 +0100
[PATCH 07/14] perf tools: show multiplexing overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
[PATCH 08/14] perf tools: show side-band events overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
[PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type Jiri Olsa <jolsa@redhat.com> - 2016-11-23 23:40 +0100
Re: [PATCH 05/14] perf tools: handle PERF_RECORD_OVERHEAD record type Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
[PATCH 12/14] perf tools: record elapsed time kan.liang@intel.com - 2016-11-23 18:50 +0100
[PATCH 13/14] perf tools: warn on high overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 13/14] perf tools: warn on high overhead Andi Kleen <andi@firstfloor.org> - 2016-11-23 21:30 +0100
RE: [PATCH 13/14] perf tools: warn on high overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-23 23:10 +0100
[PATCH 14/14] perf script: show overhead events kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:30 +0100
Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:30 +0100
Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:40 +0100
Re: [PATCH 14/14] perf script: show overhead events Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:40 +0100
[PATCH 03/14] perf/x86: output multiplexing overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 03/14] perf/x86: output multiplexing overhead Peter Zijlstra <peterz@infradead.org> - 2016-11-23 21:10 +0100
RE: [PATCH 03/14] perf/x86: output multiplexing overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-23 21:20 +0100
[PATCH 10/14] perf tools: introduce PERF_RECORD_USER_OVERHEAD kan.liang@intel.com - 2016-11-23 18:50 +0100
[PATCH 06/14] perf tools: show NMI overhead kan.liang@intel.com - 2016-11-23 18:50 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
RE: [PATCH 06/14] perf tools: show NMI overhead "Liang, Kan" <kan.liang@intel.com> - 2016-11-24 14:40 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 16:30 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Namhyung Kim <namhyung@kernel.org> - 2016-11-25 00:30 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-25 00:50 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Andi Kleen <andi@firstfloor.org> - 2016-11-25 01:30 +0100
Re: [PATCH 06/14] perf tools: show NMI overhead Jiri Olsa <jolsa@redhat.com> - 2016-11-24 00:00 +0100
Re: [PATCH 00/14] export perf overheads information Ingo Molnar <mingo@kernel.org> - 2016-11-24 05:30 +0100
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