On Wed, 21 Jan 2015, Michal Hocko wrote: > I think we can solve this as well. We can stick vmstat_shepherd into a > kernel thread with a loop with the configured timeout and then create a > mask of CPUs which need the update and run vmstat_update from > IPI context (smp_call_function_many). Please do not run the vmstat_updates concurrently. They update shared cachelines and therefore can cause bouncing cachelines if run concurrently on multiple cpus. -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>