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Date: Tue, 15 Oct 2019 13:33:45 +0800
From: Jin Yao <yao.jin@...ux.intel.com>
To: acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc: Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
kan.liang@...el.com, yao.jin@...el.com,
Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v2 0/5] perf report: Support sorting all blocks by cycles
It would be useful to support sorting for all blocks by the
sampled cycles percent per block. This is useful to concentrate
on the globally hottest blocks.
This patch series implements a new sort option "total_cycles" which
sorts all blocks by 'Sampled Cycles%'. The 'Sampled Cycles%' is
block sampled cycles aggregation / total sampled cycles
For example,
perf record -b ./div
perf report -s total_cycles --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 2M of event 'cycles'
# Event count (approx.): 2753248
#
# Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object
# ............... .............. ........... .......... ................................................................. ....................
#
26.04% 2.8M 0.40% 18 [div.c:42 -> div.c:39] div
15.17% 1.2M 0.16% 7 [random_r.c:357 -> random_r.c:380] libc-2.27.so
5.11% 402.0K 0.04% 2 [div.c:27 -> div.c:28] div
4.87% 381.6K 0.04% 2 [random.c:288 -> random.c:291] libc-2.27.so
4.53% 381.0K 0.04% 2 [div.c:40 -> div.c:40] div
3.85% 300.9K 0.02% 1 [div.c:22 -> div.c:25] div
3.08% 241.1K 0.02% 1 [rand.c:26 -> rand.c:27] libc-2.27.so
3.06% 240.0K 0.02% 1 [random.c:291 -> random.c:291] libc-2.27.so
2.78% 215.7K 0.02% 1 [random.c:298 -> random.c:298] libc-2.27.so
2.52% 198.3K 0.02% 1 [random.c:293 -> random.c:293] libc-2.27.so
2.36% 184.8K 0.02% 1 [rand.c:28 -> rand.c:28] libc-2.27.so
2.33% 180.5K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so
2.28% 176.7K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so
2.20% 168.8K 0.02% 1 [rand@...+0 -> rand@...+0] div
1.98% 158.2K 0.02% 1 [random_r.c:388 -> random_r.c:388] libc-2.27.so
1.57% 123.3K 0.02% 1 [div.c:42 -> div.c:44] div
1.44% 116.0K 0.42% 19 [random_r.c:357 -> random_r.c:394] libc-2.27.so
......
This patch series supports both stdio and tui. And also with the supporting
of --percent-limit.
v2:
---
Rebase to perf/core branch
Jin Yao (5):
perf util: Create new block.h/block.c for block related functions
perf util: Count the total cycles of all samples
perf report: Sort by sampled cycles percent per block for stdio
perf report: Support --percent-limit for total_cycles
perf report: Sort by sampled cycles percent per block for tui
tools/perf/Documentation/perf-report.txt | 10 +
tools/perf/builtin-annotate.c | 2 +-
tools/perf/builtin-diff.c | 41 +--
tools/perf/builtin-report.c | 445 ++++++++++++++++++++++-
tools/perf/builtin-top.c | 3 +-
tools/perf/ui/browsers/hists.c | 62 +++-
tools/perf/ui/browsers/hists.h | 2 +
tools/perf/ui/stdio/hist.c | 29 +-
tools/perf/util/Build | 1 +
tools/perf/util/block.c | 73 ++++
tools/perf/util/block.h | 40 ++
tools/perf/util/hist.c | 11 +-
tools/perf/util/hist.h | 15 +-
tools/perf/util/sort.c | 5 +
tools/perf/util/sort.h | 1 +
tools/perf/util/symbol.c | 22 --
tools/perf/util/symbol.h | 24 --
tools/perf/util/symbol_conf.h | 1 +
18 files changed, 694 insertions(+), 93 deletions(-)
create mode 100644 tools/perf/util/block.c
create mode 100644 tools/perf/util/block.h
--
2.17.1
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