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perf hists: Marking dummy hists entries

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It does not make sense to make some computation (ratio, wdiff), when the
hist_entry is 'dummy' - added via hists__link.

Adding dummy field to struct hist_entry which indicates that it was
added by hists__link and avoiding some of the processing for such
entries.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-g8bxml0n0pnqsrpyd98p0ird@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-12-01 21:18:20 +01:00 committed by Arnaldo Carvalho de Melo
parent 9af303e22a
commit e0af43d248
3 changed files with 18 additions and 7 deletions
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21
tools/perf/ui/hist.c
View File

@ -187,8 +187,11 @@ static int hpp__color_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
{
double percent = baseline_percent(he);
return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%",
percent);
if (!he->dummy)
return percent_color_snprintf(hpp->buf, hpp->size,
" %6.2f%%", percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
}
static int hpp__entry_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
@ -197,7 +200,10 @@ static int hpp__entry_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
double percent = baseline_percent(he);
const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
return scnprintf(hpp->buf, hpp->size, fmt, percent);
if (!he->dummy)
return scnprintf(hpp->buf, hpp->size, fmt, percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
}
static int hpp__header_period_baseline(struct perf_hpp_fmt *_fmt __maybe_unused,
@ -251,8 +257,7 @@ static int hpp__entry_delta(struct perf_hpp_fmt *_fmt __maybe_unused,
diff = he->diff.period_ratio_delta;
else
diff = perf_diff__compute_delta(he, pair);
} else
diff = perf_diff__period_percent(he, he->stat.period);
}
if (fabs(diff) >= 0.01)
scnprintf(buf, sizeof(buf), "%+4.2F%%", diff);
@ -282,7 +287,8 @@ static int hpp__entry_ratio(struct perf_hpp_fmt *_fmt __maybe_unused,
char buf[32] = " ";
double ratio = 0.0;
if (pair) {
/* No point for ratio number if we are dummy.. */
if (!he->dummy && pair) {
if (he->diff.computed)
ratio = he->diff.period_ratio;
else
@ -317,7 +323,8 @@ static int hpp__entry_wdiff(struct perf_hpp_fmt *_fmt __maybe_unused,
char buf[32] = " ";
s64 wdiff = 0;
if (pair) {
/* No point for wdiff number if we are dummy.. */
if (!he->dummy && pair) {
if (he->diff.computed)
wdiff = he->diff.wdiff;
else

1
tools/perf/util/hist.c
View File

@ -912,6 +912,7 @@ static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, root);
hists__inc_nr_entries(hists, he);
he->dummy = true;
}
out:
return he;

3
tools/perf/util/sort.h
View File

@ -89,6 +89,9 @@ struct hist_entry {
struct hist_entry_diff diff;
/* We are added by hists__add_dummy_entry. */
bool dummy;
/* XXX These two should move to some tree widget lib */
u16 row_offset;
u16 nr_rows;