On Tue, Nov 24, 2015 at 11:40:28AM +0800, Aaron Lu wrote: > On 11/23/2015 05:24 PM, Joonsoo Kim wrote: > > 2015-11-23 17:33 GMT+09:00 Aaron Lu <aaron.lu@xxxxxxxxx>: > >> On 11/23/2015 04:16 PM, Joonsoo Kim wrote: > >>> > >>> And, please attach always-always's vmstat numbers, too. > >> > >> Sure, attached the vmstat tool output, taken every second. > > > > Oops... I'd like to see '1 sec interval cat /proc/vmstat' for always-never. > > Here it is, the proc-vmstat for always-never. Okay. In this case, compaction never happen. Could you show 1 sec interval cat /proc/pagetypeinfo for always-always? > BTW, I'm still learning how to do proper ftrace for this case and it may > take a while. You can do it simply with trace-cmd. sudo trace-cmd record -e compaction & run test program fg Ctrl + c sudo trace-cmd report Thanks. -- 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>