static jlong get_daemon_thread_count() { return _daemon_threads_count->get_value() - _exiting_daemon_threads_count; }
static jlong get_live_thread_count() { return _live_threads_count->get_value() - _exiting_threads_count; }
static jlong class_method_data_size() { return (UsePerfData ? _class_methods_size->get_value() : -1); }
static jlong get_peak_thread_count() { return _peak_threads_count->get_value(); }
static jlong vm_init_done_time() { return _vm_init_done_time->get_value(); }