> >So this is impossible without THP swapin. While 2M swapout makes a lot of >sense, I doubt 2M swapin is really useful. What kind of application is 'optimized' >to do sequential memory access? We waste a lot of cpu cycles to re-compact 4K pages back to a large page under THP. Swapping it back in as a single large page can avoid fragmentation and this overhead. Thanks. Tim -- 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