>> - making zero page daemon and avoid pagesize zero fill at page fault >> - making new vma or page flags and mark as discardable w/o swap and >> vmscan treat it. (like this and/or MADV_FREE) > > Thanks for the information. > I realized by you I'm not first people to think of this idea. > Rik already tried it(https://lkml.org/lkml/2007/4/17/53) by new page flag > and even other OSes already have such good feature. And John's concept was > already tried long time ago (https://lkml.org/lkml/2005/11/1/384) > > Hmm, I look over Rik's thread but couldn't find why it wasn't merged > at that time. Anyone know it? Dunno. and I like volatile feature than old one. but bold remark, please don't 100% trust me, I haven't review a detailed code of your patch and I don't strictly understand it. -- 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>