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| author |   Taeung Song <treeze.taeung@gmail.com> | 2017-07-20 17:18:05 -0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-21 12:02:38 -0300 |
| commit | 461c17f00f400f95116880d91d20a7fcd84263a9 (patch) | |
| tree | 9e90d493d49065b41387ba79fc6645cafd8b0813 /tools/perf/util/annotate.c | |
| parent | perf hists: Pass perf_sample to __symbol__inc_addr_samples() (diff) | |
| download | linux-dev-461c17f00f400f95116880d91d20a7fcd84263a9.tar.xz linux-dev-461c17f00f400f95116880d91d20a7fcd84263a9.zip | |
perf annotate: Store the sample period in each histogram bucket
We'll use it soon, when fixing --show-total-period.
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1500500215-16646-1-git-send-email-treeze.taeung@gmail.com
[ split from a larger patch, do the math in __symbol__inc_addr_samples() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/annotate.c')
| -rw-r--r-- | tools/perf/util/annotate.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index c2fe16d5e473..00e085fc945b 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -698,7 +698,7 @@ static int __symbol__account_cycles(struct annotation *notes, static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, struct annotation *notes, int evidx, u64 addr, - struct perf_sample *sample __maybe_unused) + struct perf_sample *sample) { unsigned offset; struct sym_hist *h; @@ -716,10 +716,13 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, h = annotation__histogram(notes, evidx); h->nr_samples++; h->addr[offset].nr_samples++; + h->period += sample->period; + h->addr[offset].period += sample->period; pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 - ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name, - addr, addr - sym->start, evidx, h->addr[offset].nr_samples); + ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", + sym->start, sym->name, addr, addr - sym->start, evidx, + h->addr[offset].nr_samples, h->addr[offset].period); return 0; } @@ -937,7 +940,7 @@ double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset, struct source_line *src_line = notes->src->lines; double percent = 0.0; - sample->nr_samples = 0; + sample->nr_samples = sample->period = 0; if (src_line) { size_t sizeof_src_line = sizeof(*src_line) + @@ -957,11 +960,15 @@ double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset, } else { struct sym_hist *h = annotation__histogram(notes, evidx); unsigned int hits = 0; + u64 period = 0; - while (offset < end) + while (offset < end) { hits += h->addr[offset++].nr_samples; + period += h->addr[offset++].period; + } if (h->nr_samples) { + sample->period = period; sample->nr_samples = hits; percent = 100.0 * hits / h->nr_samples; } |