On Tue, 2 Mar 2010, Minchan Kim wrote: > > Why do you reset nice value which set by set_kswapd_nice? > > My point is that you reset nice value(which is boosted at wakeup_kswapd) to 0 > before calling balance_pgdat. It means kswapd could be rescheduled by nice 0 > before really reclaim happens by balance_pgdat. wakeup_kswapd() wakes up kswapd at the finish_wait() point so that it has the nice value set by set_kswapd_nice() when it calls balance_pgdat(), loops, and then sets it back to the default nice level of 0. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>