topdown_sys_has_perf_metrics
if (!topdown_sys_has_perf_metrics())
if (topdown_sys_has_perf_metrics() &&
if (!topdown_sys_has_perf_metrics())
if (!topdown_sys_has_perf_metrics())
if (!topdown_sys_has_perf_metrics())
bool topdown_sys_has_perf_metrics(void);