PERF_EV_CAP_READ_ACTIVE_PKG
event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
if (event->group_caps & PERF_EV_CAP_READ_ACTIVE_PKG) {