xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf report: Add -F option to specify output fields

Browse Source 
The -F/--fields option is to allow user setup output field in any
order.  It can receive any sort keys and following (hpp) fields:

  overhead, overhead_sys, overhead_us, sample and period

If guest profiling is enabled, overhead_guest_{sys,us} will be
available too.

The output fields also affect sort order unless you give -s/--sort
option.  And any keys specified on -s option, will also be added to
the output field list automatically.

  $ perf report -F sym,sample,overhead
  ...
  #                     Symbol       Samples  Overhead
  # ..........................  ............  ........
  #
    [.] __cxa_atexit                       2     2.50%
    [.] __libc_csu_init                    4     5.00%
    [.] __new_exitfn                       3     3.75%
    [.] _dl_check_map_versions             1     1.25%
    [.] _dl_name_match_p                   4     5.00%
    [.] _dl_setup_hash                     1     1.25%
    [.] _dl_sysdep_start                   1     1.25%
    [.] _init                              5     6.25%
    [.] _setjmp                            6     7.50%
    [.] a                                  8    10.00%
    [.] b                                  8    10.00%
    [.] brk                                1     1.25%
    [.] c                                  8    10.00%

Note that, the example output above is captured after applying next
patch which fixes sort/comparing behavior.

Requested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-12-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Namhyung Kim
2014-03-04 10:46:34 +09:00
committed by Jiri Olsa
parent 22af969e8c
commit a7d945bc91
6 changed files with 282 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
tools/perf/ui/hist.c
View File

@@ -355,6 +355,12 @@ void perf_hpp__init(void)
INIT_LIST_HEAD(&fmt->sort_list);
}
/*
* If user specified field order, no need to setup default fields.
*/
if (field_order)
return;
perf_hpp__column_enable(PERF_HPP__OVERHEAD);
if (symbol_conf.show_cpu_utilization) {
@@ -377,8 +383,6 @@ void perf_hpp__init(void)
list = &perf_hpp__format[PERF_HPP__OVERHEAD].sort_list;
if (list_empty(list))
list_add(list, &perf_hpp__sort_list);
perf_hpp__setup_output_field();
}
void perf_hpp__column_register(struct perf_hpp_fmt *format)
@@ -403,8 +407,55 @@ void perf_hpp__setup_output_field(void)
/* append sort keys to output field */
perf_hpp__for_each_sort_list(fmt) {
if (list_empty(&fmt->list))
perf_hpp__column_register(fmt);
if (!list_empty(&fmt->list))
continue;
/*
* sort entry fields are dynamically created,
* so they can share a same sort key even though
* the list is empty.
*/
if (perf_hpp__is_sort_entry(fmt)) {
struct perf_hpp_fmt *pos;
perf_hpp__for_each_format(pos) {
if (perf_hpp__same_sort_entry(pos, fmt))
goto next;
}
}
perf_hpp__column_register(fmt);
next:
continue;
}
}
void perf_hpp__append_sort_keys(void)
{
struct perf_hpp_fmt *fmt;
/* append output fields to sort keys */
perf_hpp__for_each_format(fmt) {
if (!list_empty(&fmt->sort_list))
continue;
/*
* sort entry fields are dynamically created,
* so they can share a same sort key even though
* the list is empty.
*/
if (perf_hpp__is_sort_entry(fmt)) {
struct perf_hpp_fmt *pos;
perf_hpp__for_each_sort_list(pos) {
if (perf_hpp__same_sort_entry(pos, fmt))
goto next;
}
}
perf_hpp__register_sort_field(fmt);
next:
continue;
}
}