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perf annotate: Fix missing number of samples for source_line_samples

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The option 'show-total-period' works fine without a option '-l'.  But if
running 'perf annotate --stdio -l --show-total-period', you can see a
problem showing only zero '0' for number of samples.

Before:
    $ perf annotate --stdio -l --show-total-period
...
       0 :        400816:       push   %rbp
       0 :        400817:       mov    %rsp,%rbp
       0 :        40081a:       mov    %edi,-0x24(%rbp)
       0 :        40081d:       mov    %rsi,-0x30(%rbp)
       0 :        400821:       mov    -0x24(%rbp),%eax
       0 :        400824:       mov    -0x30(%rbp),%rdx
       0 :        400828:       mov    (%rdx),%esi
       0 :        40082a:       mov    $0x0,%edx
...

The reason is it was missed to set number of samples of
source_line_samples, so set it ordinarily.

After:
    $ perf annotate --stdio -l --show-total-period
...
       3 :        400816:       push   %rbp
       4 :        400817:       mov    %rsp,%rbp
       0 :        40081a:       mov    %edi,-0x24(%rbp)
       0 :        40081d:       mov    %rsi,-0x30(%rbp)
       1 :        400821:       mov    -0x24(%rbp),%eax
       2 :        400824:       mov    -0x30(%rbp),%rdx
       0 :        400828:       mov    (%rdx),%esi
       1 :        40082a:       mov    $0x0,%edx
...

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin Liska <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 0c4a5bcea460 ("perf annotate: Display total number of samples with --show-total-period")
Link: http://lkml.kernel.org/r/1490703125-13643-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Taeung Song 2017-03-28 21:12:05 +09:00 committed by Arnaldo Carvalho de Melo
parent 9c0899f157
commit 99094a5e94
2 changed files with 5 additions and 3 deletions
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6
tools/perf/util/annotate.c
View File

@ -1665,7 +1665,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
start = map__rip_2objdump(map, sym->start);
for (i = 0; i < len; i++) {
u64 offset;
u64 offset, nr_samples;
double percent_max = 0.0;
src_line->nr_pcnt = nr_pcnt;
@ -1674,12 +1674,14 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
double percent = 0.0;
h = annotation__histogram(notes, evidx + k);
nr_samples = h->addr[i];
if (h->sum)
percent = 100.0 * h->addr[i] / h->sum;
percent = 100.0 * nr_samples / h->sum;
if (percent > percent_max)
percent_max = percent;
src_line->samples[k].percent = percent;
src_line->samples[k].nr = nr_samples;
}
if (percent_max <= 0.5)

2
tools/perf/util/annotate.h
View File

@ -98,7 +98,7 @@ struct cyc_hist {
struct source_line_samples {
double percent;
double percent_sum;
double nr;
u64 nr;
};
struct source_line {