On Wed 2015-11-04 10:25:54, Minchan Kim wrote: > MADV_FREE is on linux-next so long time. The reason was two, I think. > > 1. MADV_FREE code on reclaim path was really mess. Could you explain what MADV_FREE does? Comment in code says 'free the page only when there's memory pressure'. So I mark my caches MADV_FREE, no memory pressure, I can keep using it? And if there's memory pressure, what happens? I get zeros? SIGSEGV? Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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>