From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jin Yao <yao.jin@linux.intel.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Jin Yao <yao.jin@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 08/18] perf diff: Documentation -c cycles option
Date: Wed, 3 Jul 2019 00:27:36 -0300 [thread overview]
Message-ID: <20190703032746.21692-9-acme@kernel.org> (raw)
In-Reply-To: <20190703032746.21692-1-acme@kernel.org>
From: Jin Yao <yao.jin@linux.intel.com>
Documentation the new computation selection 'cycles'.
v4:
---
Change the column 'Block cycles diff [start:end]' to
'[Program Block Range] Cycles Diff'
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1561713784-30533-8-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-diff.txt | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt
index facd91e4e945..d5cc15e651cf 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -90,9 +90,10 @@ OPTIONS
-c::
--compute::
- Differential computation selection - delta, ratio, wdiff, delta-abs
- (default is delta-abs). Default can be changed using diff.compute
- config option. See COMPARISON METHODS section for more info.
+ Differential computation selection - delta, ratio, wdiff, cycles,
+ delta-abs (default is delta-abs). Default can be changed using
+ diff.compute config option. See COMPARISON METHODS section for
+ more info.
-p::
--period::
@@ -280,6 +281,16 @@ If specified the 'Weighted diff' column is displayed with value 'd' computed as:
- WEIGHT-A being the weight of the data file
- WEIGHT-B being the weight of the baseline data file
+cycles
+~~~~~~
+If specified the '[Program Block Range] Cycles Diff' column is displayed.
+It displays the cycles difference of same program basic block amongst
+two perf.data. The program basic block is the code between two branches.
+
+'[Program Block Range]' indicates the range of a program basic block.
+Source line is reported if it can be found otherwise uses symbol+offset
+instead.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]
--
2.20.1
next prev parent reply other threads:[~2019-07-03 3:27 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-03 3:27 [GIT PULL] perf/core improvements and fixes Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 01/18] objtool: Fix build by linking against tools/lib/ctype.o sources Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 02/18] perf symbol: Create block_info structure Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 03/18] perf hists: Add block_info in hist_entry Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 04/18] perf diff: Check if all data files with branch stacks Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 05/18] perf diff: Use hists to manage basic blocks per symbol Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 06/18] perf diff: Link same basic blocks among different data Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 07/18] perf diff: Print the basic block cycles diff Arnaldo Carvalho de Melo
2019-07-03 3:27 ` Arnaldo Carvalho de Melo [this message]
2019-07-03 3:27 ` [PATCH 09/18] perf pmu: Support more complex PMU event aliasing Arnaldo Carvalho de Melo
2019-07-03 3:27 ` Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 10/18] perf jevents: Add support for Hisi hip08 DDRC PMU aliasing Arnaldo Carvalho de Melo
2019-07-03 3:27 ` Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 11/18] perf jevents: Add support for Hisi hip08 HHA " Arnaldo Carvalho de Melo
2019-07-03 3:27 ` Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 12/18] perf jevents: Add support for Hisi hip08 L3C " Arnaldo Carvalho de Melo
2019-07-03 3:27 ` Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 13/18] perf tools: Fix typos / broken sentences Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 14/18] perf vendor events intel: Metric fixes for SKX/CLX Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 15/18] perf list: Avoid extra : for --raw metrics Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 16/18] perf tools metric: Don't include duration_time in group Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 17/18] perf tests: Fix record+probe_libc_inet_pton.sh for powerpc64 Arnaldo Carvalho de Melo
2019-07-03 3:27 ` [PATCH 18/18] perf script: Allow specifying the files to process guest samples Arnaldo Carvalho de Melo
2019-07-03 13:56 ` [GIT PULL] perf/core improvements and fixes Ingo Molnar
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