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perf record: Add a tip about system-wide collection from all CPUs

PATCH New Donghyun Kim 2 participants 2 messages Sep 29, 2016 – Oct 6, 2016 perf events

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Donghyun Kim

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PATCH 1/1 perf record: Add a tip about system-wide collection from all CPUs

Signed-off-by Donghyun Kim <[email protected]>
Cc Namhyung Kim <[email protected]>
Cc Jiri Olsa <[email protected]>
Cc Taeung Song <[email protected]>
---
 tools/perf/Documentation/tips.txt | 1 +
 1 file changed, 1 insertion(+)
tools/perf/Documentation/tips.txt +1 -0
index 5950b5a..1435d70 100644
@@ -28,3 +28,4 @@ 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
 For hierarchical output, try: perf report --hierarchy
+System-wide collection from all-CPUs: perf record -a
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2.1.0
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#1 lore raw

[tip:perf/urgent] perf report/top: Add a tip about system-wide collection from all CPUs

perf report/top: Add a tip about system-wide collection from all CPUs
Commit-ID:  49343235d08a228c7fe84d0606e69253cc0bc751
Gitweb:     http://git.kernel.org/tip/49343235d08a228c7fe84d0606e69253cc0bc751
Author:     Donghyun Kim <[email protected]>
AuthorDate: Fri, 30 Sep 2016 07:15:57 +0900
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Wed, 5 Oct 2016 19:50:25 -0300

perf report/top: Add a tip about system-wide collection from all CPUs

Signed-off-by Donghyun Kim <[email protected]>
Cc Jiri Olsa <[email protected]>
Cc Namhyung Kim <[email protected]>
Cc Peter Zijlstra <[email protected]>
Cc Taeung Song <[email protected]>
Link http://lkml.kernel.org/r/[email protected] open here
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
---
 tools/perf/Documentation/tips.txt | 1 +
 1 file changed, 1 insertion(+)
tools/perf/Documentation/tips.txt +1 -0
index b031124..9d3e1ee 100644
@@ -29,3 +29,4 @@ See assembly instructions with percentage: perf annotate <symbol>
 If you prefer Intel style assembly, try: perf annotate -M intel
 For hierarchical output, try: perf report --hierarchy
 Order by the overhead of source file name and line number: perf report -s srcline
+System-wide collection from all CPUs: perf record -a