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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,
	Jiri Olsa <jolsa@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	David Ahern <dsahern@gmail.com>,
	David Carrillo-Cisneros <davidcc@google.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 20/27] perf tools: Synthesize GROUP_DESC feature in pipe mode
Date: Wed, 25 Jul 2018 14:59:54 -0300	[thread overview]
Message-ID: <20180725180001.15108-21-acme@kernel.org> (raw)
In-Reply-To: <20180725180001.15108-1-acme@kernel.org>

From: Jiri Olsa <jolsa@kernel.org>

Stephan reported, that pipe mode does not carry the group information
and thus the piped report won't display the grouped output for following
command:

  # perf record -e '{cycles,instructions,branches}' -a sleep 4 | perf report

It has no idea about the group setup, so it will display events
separately:

  # Overhead  Command          Shared Object             ...
  # ........  ...............  .......................
  #
       6.71%  swapper          [kernel.kallsyms]
       2.28%  offlineimap      libpython2.7.so.1.0
       0.78%  perf             [kernel.kallsyms]
  ...

Fix GROUP_DESC feature record to be synthesized in pipe mode, so the
report output is grouped if there are groups defined in record:

  #                 Overhead  Command          Shared    ...
  # ........................  ...............  .......
  #
       7.57%   0.16%   0.30%  swapper          [kernel
       1.87%   3.15%   2.46%  offlineimap      libpyth
       1.33%   0.00%   0.00%  perf             [kernel
  ...

Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: David Carrillo-Cisneros <davidcc@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180712135202.14774-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/header.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 653ff65aa2c3..5af58aac91ad 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2587,7 +2587,7 @@ static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
 	FEAT_OPR(NUMA_TOPOLOGY,	numa_topology,	true),
 	FEAT_OPN(BRANCH_STACK,	branch_stack,	false),
 	FEAT_OPR(PMU_MAPPINGS,	pmu_mappings,	false),
-	FEAT_OPN(GROUP_DESC,	group_desc,	false),
+	FEAT_OPR(GROUP_DESC,	group_desc,	false),
 	FEAT_OPN(AUXTRACE,	auxtrace,	false),
 	FEAT_OPN(STAT,		stat,		false),
 	FEAT_OPN(CACHE,		cache,		true),
-- 
2.14.4

  parent reply	other threads:[~2018-07-25 17:59 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-25 17:59 [GIT PULL 00/27] perf/core improvements and fixes Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 01/27] perf tests: Check that complex event name is parsed correctly Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 02/27] perf hists: Clarify callchain disabling when available Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 03/27] perf cs-etm: Introduce invalid address macro Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 04/27] perf cs-etm: Bail out immediately for instruction sample failure Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 05/27] Revert "perf list: Add s390 support for detailed/verbose PMU event description" Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 06/27] perf list: Add s390 support for detailed PMU event description Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 07/27] perf json: Add s390 transaction counter definition Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 08/27] perf stat: Add transaction flag (-T) support for s390 Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 09/27] perf kvm: Fix subcommands on s390 Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 10/27] perf list: Add missing documentation for --desc and --debug options Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 11/27] perf powerpc: Fix callchain ip filtering Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 12/27] perf powerpc: Fix callchain ip filtering when return address is in a register Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 13/27] perf tests: Fix record+probe_libc_inet_pton.sh for powerpc64 Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 14/27] perf tests: Fix record+probe_libc_inet_pton.sh to ensure cleanups Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 15/27] perf tests: Fix record+probe_libc_inet_pton.sh when event exists Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 16/27] tools include: Grab copies of arm64 dependent unistd.h files Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 17/27] perf arm64: Generate system call table from asm/unistd.h Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 18/27] perf trace arm64: Use generated syscall table Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 19/27] perf script: Show correct offsets for DWARF-based unwinding Arnaldo Carvalho de Melo
2018-07-25 17:59 ` Arnaldo Carvalho de Melo [this message]
2018-07-25 17:59 ` [PATCH 21/27] perf machine: Add threads__get_last_match function Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 22/27] perf machine: Add threads__set_last_match function Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 23/27] perf machine: Use last_match threads cache only in single thread mode Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 24/27] perf tools: Fix struct comm_str removal crash Arnaldo Carvalho de Melo
2018-07-25 17:59 ` [PATCH 25/27] perf tools: Use perf_evsel__match instead of open coded equivalent Arnaldo Carvalho de Melo
2018-07-25 18:00 ` [PATCH 26/27] perf stat: Get rid of extra clock display function Arnaldo Carvalho de Melo
2018-07-25 18:00 ` [PATCH 27/27] perf test: Fix subtest number when showing results Arnaldo Carvalho de Melo
2018-07-25 20:34 ` [GIT PULL 00/27] perf/core improvements and fixes Ingo Molnar

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