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Groups > linux.kernel > #1307717

[PATCH 07/11] perf tools: Add more usage tips

From Arnaldo Carvalho de Melo <acme@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 07/11] perf tools: Add more usage tips
Date 2016-01-12 19:10 +0100
Message-ID <qQbyk-4DG-49@gated-at.bofh.it> (permalink)
References <qQboC-4jE-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Namhyung Kim <namhyung@kernel.org>

Thanks to Andi Kleen for providing useful tips.

Suggested-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1452508510-28316-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/tips.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tools/perf/Documentation/tips.txt b/tools/perf/Documentation/tips.txt
index a1c10e360db5..e0ce9573b79b 100644
--- a/tools/perf/Documentation/tips.txt
+++ b/tools/perf/Documentation/tips.txt
@@ -12,3 +12,18 @@ List events using substring match: perf list <keyword>
 To see list of saved events and attributes: perf evlist -v
 Use --symfs <dir> if your symbol files are in non-standard locations
 To see callchains in a more compact form: perf report -g folded
+Show individual samples with: perf script
+Limit to show entries above 5% only: perf report --percent-limit 5
+Profiling branch (mis)predictions with: perf record -b / perf report
+Treat branches as callchains: perf report --branch-history
+To count events in every 1000 msec: perf stat -I 1000
+Print event counts in CSV format with: perf stat -x,
+If you have debuginfo enabled, try: perf report -s sym,srcline
+For memory address profiling, try: perf mem record / perf mem report
+For tracepoint events, try: perf report -s trace_fields
+To record callchains for each sample: perf record -g
+To record every process run by an user: perf record -u <user>
+Skip collecing build-id when recording: perf record -B
+To change sampling frequency to 100 Hz: perf record -F 100
+See assembly instructions with percentage: perf annotate <symbol>
+If you prefer Intel style assembly, try: perf annotate -M intel
-- 
2.1.0

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[GIT PULL 00/11] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:00 +0100
  [PATCH 11/11] perf tools: Fallback to srcdir/Documentation/tips.txt Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:00 +0100
  [PATCH 06/11] perf record: Add --buildid-all option Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 09/11] perf tools: Set and pass DOCDIR to builtin-report.c Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 05/11] tools subcmd: Add missing NORETURN define for parse-options.h Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 04/11] tools: Fix formatting of the "make -C tools" help message Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 08/11] perf tools: Add file_only config option to strlist Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 03/11] tools: Make list.h self-sufficient Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  [PATCH 07/11] perf tools: Add more usage tips Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-01-12 19:10 +0100
  Re: [GIT PULL 00/11] perf/core improvements and fixes Ingo Molnar <mingo@kernel.org> - 2016-01-13 10:40 +0100

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