04 May, 2017
1 commit
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Mostly in the documentation.
Signed-off-by: Kim Phillips
Cc: Alexander Shishkin
Cc: Peter Zijlstra
Link: http://lkml.kernel.org/r/20170503131350.cebeecd8bd0f2968417626ab@arm.com
[ Fix spelling of "parameter" in one of the spell-checked lines ]
Signed-off-by: Arnaldo Carvalho de Melo
28 Feb, 2017
1 commit
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Fix typos and add the following to the scripts/spelling.txt:
an user||a user
an userspace||a userspaceI also added "userspace" to the list since it is a common word in Linux.
I found some instances for "an userfaultfd", but I did not add it to the
list. I felt it is endless to find words that start with "user" such as
"userland" etc., so must draw a line somewhere.Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Oct, 2016
3 commits
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Add two tips that describe --list option of config sub-command and
explain how to choose particular config file location.Signed-off-by: Nambong Ha
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Taeung Song
Link: http://lkml.kernel.org/r/1475191562-3240-1-git-send-email-over3025@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
Signed-off-by: Donghyun Kim
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Taeung Song
Link: http://lkml.kernel.org/r/1475187357-21882-1-git-send-email-dongdong9335@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
There is a existing tip as below.
If you have debuginfo enabled, try: perf report -s sym,srcline
However this tip only describe a condition to use --sort sym,scrline
options. So there is lack of explanation in the tip. I think that it
would be better to add a tip that exactly explains the feature of --sort
srcline.Signed-off-by: Seonyoung Kim
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Taeung Song
Link: http://lkml.kernel.org/r/1475194602-5596-1-git-send-email-adamas0414@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo
25 Feb, 2016
1 commit
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The --hierarchy option is to show output in hierarchy mode. It extends
folding/unfolding in the TUI and GTK browsers to support sort items as
well as callchains. Users can toggle the items to see the performance
result at wanted level.$ perf report --hierarchy --tui
Overhead Command / Shared Object / Symbol
--------------------------------------------------
+ 32.96% gnome-shell
- 15.11% swapper
- 14.97% [kernel.vmlinux]
6.82% [k] intel_idle
0.66% [k] menu_select
0.43% [k] __hrtimer_start_range_ns
...Signed-off-by: Namhyung Kim
Acked-by: Pekka Enberg
Cc: Andi Kleen
Cc: David Ahern
Cc: Jiri Olsa
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Wang Nan
Link: http://lkml.kernel.org/r/1456326830-30456-17-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo
12 Jan, 2016
1 commit
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Thanks to Andi Kleen for providing useful tips.
Suggested-by: Andi Kleen
Signed-off-by: Namhyung Kim
Cc: Andi Kleen
Cc: Brendan Gregg
Cc: David Ahern
Cc: Jiri Olsa
Cc: Peter Zijlstra
Cc: Wang Nan
Link: http://lkml.kernel.org/r/1452508510-28316-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo
09 Jan, 2016
1 commit
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Currently perf report only shows a help message "For a higher level
overview, try: perf report --sort comm,dso" unconditionally (even if
the sort keys were used). Add more help tips and show randomly.Load tips from ${prefix}/share/doc/perf-tip/tips.txt file.
$ perf report | tail
0.10% swapper [kernel.vmlinux] [k] irq_exit
0.09% swapper [kernel.vmlinux] [k] flush_smp_call_function_queue
0.08% swapper [kernel.vmlinux] [k] native_write_msr_safe
0.03% swapper [kernel.vmlinux] [k] group_sched_in
0.01% perf [kernel.vmlinux] [k] native_write_msr_safe#
# (Tip: Search options using a keyword: perf report -h )
#Signed-off-by: Namhyung Kim
Acked-by: Ingo Molnar
Cc: Andi Kleen
Cc: David Ahern
Cc: Jiri Olsa
Cc: Masami Hiramatsu
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Wang Nan
Link: http://lkml.kernel.org/r/1452166913-27046-1-git-send-email-namhyung@kernel.org
[ Renamed it to perf_tip() and the parameter dirname to dirpath to fix the build on older distros ]
Signed-off-by: Arnaldo Carvalho de Melo