@@ -1204,8 +1265,14 @@ static int __init setup_vmstat(void) register_cpu_notifier(&vmstat_notifier); + INIT_DELAYED_WORK_DEFERRABLE(&vmstat_monitor_work, + vmstat_update_monitor); + queue_delayed_work(system_unbound_wq, + &vmstat_monitor_work, + round_jiffies_relative(HZ)); + for_each_online_cpu(cpu) - start_cpu_timer(cpu); + setup_cpu_timer(cpu); #endif #ifdef CONFIG_PROC_FS proc_create("buddyinfo", S_IRUGO, NULL,&fragmentation_file_operations);So the monitoring thread just bounces around the system? Hope that the scheduler does the right thing to keep it on processors that do some other work.
Good point. Usually, all cpus have update items and monitor worker only makes new noise. I think this feature is only useful some hpc case. So I wonder if this vmstat improvemnt can integrate Frederic's Nohz cpusets activity. I.e. vmstat-update integrate timer house keeping and automatically stop when stopping hz house keeping. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>