perf_cpu_map__max
LIBPERF_API struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map);
nr = perf_cpu_map__max(evsel_list->core.all_cpus).cpu + 1;
TEST_ASSERT_VAL("wrong cpu", perf_cpu_map__max(map).cpu == 256);
struct perf_cpu c, last_cpu = perf_cpu_map__max(map);
nr = max(nr, (int)perf_cpu_map__max(nn->map).cpu);
syn_data->max_cpu = perf_cpu_map__max(syn_data->map).cpu;