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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Clark Williams <williams@redhat.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Alexey Budankov <alexey.budankov@linux.intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 03/17] perf report: Extend raw dump (-D) out with switch out event type
Date: Fri, 20 Apr 2018 11:32:13 -0300	[thread overview]
Message-ID: <20180420143227.16030-4-acme@kernel.org> (raw)
In-Reply-To: <20180420143227.16030-1-acme@kernel.org>

From: Alexey Budankov <alexey.budankov@linux.intel.com>

Print additional 'preempt' tag for PERF_RECORD_SWITCH[_CPU_WIDE] OUT records when
event header misc field contains PERF_RECORD_MISC_SWITCH_OUT_PREEMPT bit set
designating preemption context switch out event:

tools/perf/perf report -D -i perf.data | grep _SWITCH

0 768361415226 0x27f076 [0x28]: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid:     8/8
4 768362216813 0x28f45e [0x28]: PERF_RECORD_SWITCH_CPU_WIDE OUT          next pid/tid:     0/0
4 768362217824 0x28f486 [0x28]: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid:  4073/4073
0 768362414027 0x27f0ce [0x28]: PERF_RECORD_SWITCH_CPU_WIDE OUT preempt  next pid/tid:     8/8
0 768362414367 0x27f0f6 [0x28]: PERF_RECORD_SWITCH_CPU_WIDE IN           prev pid/tid:     0/0

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/6f5aebb9-b96c-f304-f08f-8f046d38de4f@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index f0a6cbd033cc..98ff3a6a3d50 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1421,7 +1421,9 @@ size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
 {
 	bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
-	const char *in_out = out ? "OUT" : "IN ";
+	const char *in_out = !out ? "IN         " :
+		!(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
+				    "OUT        " : "OUT preempt";
 
 	if (event->header.type == PERF_RECORD_SWITCH)
 		return fprintf(fp, " %s\n", in_out);
-- 
2.14.3

  parent reply	other threads:[~2018-04-20 14:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-20 14:32 [GIT PULL 00/17] perf/urgent fixes and improvements Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 02/17] perf/core: Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE] Arnaldo Carvalho de Melo
2018-04-20 14:32 ` Arnaldo Carvalho de Melo [this message]
2018-04-20 14:32 ` [PATCH 04/17] perf script: Extend misc field decoding with switch out event type Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 05/17] perf list: Add s390 support for detailed/verbose PMU event description Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 06/17] perf: Return proper values for user stack errors Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 07/17] perf: Fix sample_max_stack maximum check Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 08/17] perf: Remove superfluous allocation error check Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 09/17] perf trace: Support MAP_FIXED_NOREPLACE Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 10/17] perf mem: Allow all record/report options Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 11/17] perf hists browser: Clarify top/report browser help Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 12/17] perf record: Remove misleading error suggestion Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 13/17] perf record: Remove suggestion to enable APIC Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 14/17] perf tools: Add '\n' at the end of parse-options error messages Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 15/17] perf tests mmap: Show which tracepoint is failing Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 16/17] perf test BPF: Fixup BPF test using epoll_pwait syscall function probe Arnaldo Carvalho de Melo
2018-04-20 14:32 ` [PATCH 17/17] coresight: Move to SPDX identifier Arnaldo Carvalho de Melo
2018-04-21  7:39 ` [GIT PULL 00/17] perf/urgent fixes and improvements Ingo Molnar

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