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perf hist: Simplify __hpp_fmt() using hpp_fmt_data

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The struct hpp_fmt_data is to keep the values for each group members so
it doesn't need to check the event index in the group.

Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240607202918.2357459-3-namhyung@kernel.org
This commit is contained in:
Namhyung Kim 2024-06-07 13:29:16 -07:00
parent cc2621cecd
commit 8f6071a3dc
1 changed files with 37 additions and 40 deletions
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77
tools/perf/ui/hist.c
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@ -46,65 +46,62 @@ static int __hpp__fmt_print(struct perf_hpp *hpp, struct hists *hists, u64 val,
return hpp__call_print_fn(hpp, print_fn, fmt, len, val);
}
struct hpp_fmt_value {
struct hists *hists;
u64 val;
int samples;
};
static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
hpp_field_fn get_field, const char *fmt, int len,
hpp_snprint_fn print_fn, enum perf_hpp_fmt_type fmtype)
{
int ret;
int ret = 0;
struct hists *hists = he->hists;
struct evsel *evsel = hists_to_evsel(hists);
struct evsel *pos;
char *buf = hpp->buf;
size_t size = hpp->size;
int i, nr_members = 1;
struct hpp_fmt_value *values;
ret = __hpp__fmt_print(hpp, hists, get_field(he), he->stat.nr_events,
fmt, len, print_fn, fmtype);
if (evsel__is_group_event(evsel))
nr_members = evsel->core.nr_members;
values = calloc(nr_members, sizeof(*values));
if (values == NULL)
return 0;
i = 0;
for_each_group_evsel(pos, evsel)
values[i++].hists = evsel__hists(pos);
values[0].val = get_field(he);
values[0].samples = he->stat.nr_events;
if (evsel__is_group_event(evsel)) {
int prev_idx, idx_delta;
struct hist_entry *pair;
int nr_members = evsel->core.nr_members;
prev_idx = evsel__group_idx(evsel);
list_for_each_entry(pair, &he->pairs.head, pairs.node) {
u64 period = get_field(pair);
u64 total = hists__total_period(pair->hists);
int nr_samples = pair->stat.nr_events;
for (i = 0; i < nr_members; i++) {
if (values[i].hists != pair->hists)
continue;
if (!total)
continue;
evsel = hists_to_evsel(pair->hists);
idx_delta = evsel__group_idx(evsel) - prev_idx - 1;
while (idx_delta--) {
/*
* zero-fill group members in the middle which have
* no samples, pair->hists is not correct but it's
* fine since the value is 0.
*/
ret += __hpp__fmt_print(hpp, pair->hists, 0, 0,
fmt, len, print_fn, fmtype);
values[i].val = get_field(pair);
values[i].samples = pair->stat.nr_events;
break;
}
ret += __hpp__fmt_print(hpp, pair->hists, period, nr_samples,
fmt, len, print_fn, fmtype);
prev_idx = evsel__group_idx(evsel);
}
idx_delta = nr_members - prev_idx - 1;
while (idx_delta--) {
/*
* zero-fill group members at last which have no sample.
* the hists is not correct but it's fine like above.
*/
ret += __hpp__fmt_print(hpp, evsel__hists(evsel), 0, 0,
fmt, len, print_fn, fmtype);
}
}
for (i = 0; i < nr_members; i++) {
ret += __hpp__fmt_print(hpp, values[i].hists, values[i].val,
values[i].samples, fmt, len,
print_fn, fmtype);
}
free(values);
/*
* Restore original buf and size as it's where caller expects
* the result will be saved.