> --- linux-next.orig/kernel/fork.c 2011-08-08 22:11:59.000000000 +0800 > +++ linux-next/kernel/fork.c 2011-08-08 22:18:05.000000000 +0800 > @@ -1301,6 +1301,9 @@ static struct task_struct *copy_process( > p->pdeath_signal = 0; > p->exit_state = 0; > > + p->nr_dirtied = 0; > + p->nr_dirtied_pause = 8; Hmm, it looks better to allow a new task to dirty 128KB without being throttled, if the system is not in dirty exceeded state. So changed the last line to this: + p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10); Thanks, Fengguang -- 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>