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-rw-r--r--tools/perf/builtin-diff.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 015ca2d4fe90..0cfe99ea9056 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -167,34 +167,34 @@ double perf_diff__period_percent(struct hist_entry *he, u64 period)
double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair)
{
- double new_percent = perf_diff__period_percent(he, he->stat.period);
- double old_percent = perf_diff__period_percent(pair, pair->stat.period);
+ double old_percent = perf_diff__period_percent(he, he->stat.period);
+ double new_percent = perf_diff__period_percent(pair, pair->stat.period);
- he->diff.period_ratio_delta = new_percent - old_percent;
- he->diff.computed = true;
- return he->diff.period_ratio_delta;
+ pair->diff.period_ratio_delta = new_percent - old_percent;
+ pair->diff.computed = true;
+ return pair->diff.period_ratio_delta;
}
double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair)
{
- double new_period = he->stat.period;
- double old_period = pair->stat.period;
+ double old_period = he->stat.period ?: 1;
+ double new_period = pair->stat.period;
- he->diff.computed = true;
- he->diff.period_ratio = new_period / old_period;
- return he->diff.period_ratio;
+ pair->diff.computed = true;
+ pair->diff.period_ratio = new_period / old_period;
+ return pair->diff.period_ratio;
}
s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair)
{
- u64 new_period = he->stat.period;
- u64 old_period = pair->stat.period;
+ u64 old_period = he->stat.period;
+ u64 new_period = pair->stat.period;
- he->diff.computed = true;
- he->diff.wdiff = new_period * compute_wdiff_w2 -
- old_period * compute_wdiff_w1;
+ pair->diff.computed = true;
+ pair->diff.wdiff = new_period * compute_wdiff_w2 -
+ old_period * compute_wdiff_w1;
- return he->diff.wdiff;
+ return pair->diff.wdiff;
}
static int formula_delta(struct hist_entry *he, struct hist_entry *pair,
@@ -203,15 +203,15 @@ static int formula_delta(struct hist_entry *he, struct hist_entry *pair,
return scnprintf(buf, size,
"(%" PRIu64 " * 100 / %" PRIu64 ") - "
"(%" PRIu64 " * 100 / %" PRIu64 ")",
- he->stat.period, he->hists->stats.total_period,
- pair->stat.period, pair->hists->stats.total_period);
+ pair->stat.period, pair->hists->stats.total_period,
+ he->stat.period, he->hists->stats.total_period);
}
static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,
char *buf, size_t size)
{
- double new_period = he->stat.period;
- double old_period = pair->stat.period;
+ double old_period = he->stat.period;
+ double new_period = pair->stat.period;
return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period);
}
@@ -219,8 +219,8 @@ static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,
static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,
char *buf, size_t size)
{
- u64 new_period = he->stat.period;
- u64 old_period = pair->stat.period;
+ u64 old_period = he->stat.period;
+ u64 new_period = pair->stat.period;
return scnprintf(buf, size,
"(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")",
@@ -462,23 +462,23 @@ static void hists__compute_resort(struct hists *hists)
}
}
-static void hists__process(struct hists *old, struct hists *new)
+static void hists__process(struct hists *base, struct hists *new)
{
- hists__match(new, old);
+ hists__match(base, new);
if (show_baseline_only)
- hists__baseline_only(new);
+ hists__baseline_only(base);
else
- hists__link(new, old);
+ hists__link(base, new);
if (sort_compute) {
- hists__precompute(new);
- hists__compute_resort(new);
+ hists__precompute(base);
+ hists__compute_resort(base);
} else {
- hists__output_resort(new);
+ hists__output_resort(base);
}
- hists__fprintf(new, true, 0, 0, 0, stdout);
+ hists__fprintf(base, true, 0, 0, 0, stdout);
}
static void data_process(void)