On Mon, 2011-04-18 at 14:46 +0530, Raghavendra D Prabhu wrote: > I have set it to 500 centisecs as that is the default value of > dirty_writeback_interval. I used this logic for following reason: the > purpose for which dirty_writeback_interval is set to 0 is to disable > periodic writeback > (http://tomoyo.sourceforge.jp/cgi-bin/lxr/source/fs/fs-writeback.c#L818) > , whereas here (in bdi_wakeup_thread_delayed) it is being used for a > different purpose -- to delay the bdi wakeup in order to reduce context > switches for dirty inode writeback. But why it wakes up the bdi thread? Exactly to make sure the periodic write-back happen. -- Best Regards, Artem Bityutskiy (ÐÑÑÑÐ ÐÐÑÑÑÐÐÐ) -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>