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perf top: Add -w option for setting column width

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Add -w/--column-widths option like perf report does so that users are
able to see symbols even with some very long C++ library/functions.

It can be a list separated by comma for each column.

  $ perf top -w 0,20,30

The value of 0 means there's no limit.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1406785662-5534-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2014-07-31 14:47:39 +09:00 • committed by Arnaldo Carvalho de Melo
parent 5b59166960
commit cf59002fde
3 changed files with 10 additions and 1 deletions
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2
tools/perf/Documentation/perf-report.txt
View file

@ -147,7 +147,7 @@ OPTIONS
-w:: -w::
--column-widths=<width[,width...]>:: --column-widths=<width[,width...]>::
Force each column width to the provided list, for large terminal Force each column width to the provided list, for large terminal
readability. readability. 0 means no limit (default behavior).
-t:: -t::
--field-separator=:: --field-separator=::

6
tools/perf/Documentation/perf-top.txt
View file

@ -193,6 +193,12 @@ Default is to monitor all CPUS.
sum of shown entries will be always 100%. "absolute" means it retains sum of shown entries will be always 100%. "absolute" means it retains
the original value before and after the filter is applied. the original value before and after the filter is applied.
-w::
--column-widths=<width[,width...]>::
Force each column width to the provided list, for large terminal
readability. 0 means no limit (default behavior).
INTERACTIVE PROMPTING KEYS INTERACTIVE PROMPTING KEYS
-------------------------- --------------------------

3
tools/perf/builtin-top.c
View file

@ -1131,6 +1131,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
"Don't show entries under that percent", parse_percent_limit), "Don't show entries under that percent", parse_percent_limit),
OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
"How to display percentage of filtered entries", parse_filter_percentage), "How to display percentage of filtered entries", parse_filter_percentage),
OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
"width[,width...]",
"don't try to adjust column width, use these fixed values"),
OPT_END() OPT_END()
}; };
const char * const top_usage[] = { const char * const top_usage[] = {