On 10/13/2011 01:35 AM, KAMEZAWA Hiroyuki wrote: > > I don't read full story but....how about adding a new syscall like > > == > sys_mem_shrink(int nid, int nr_scan_pages, int flags) > > This system call scans LRU of specified nodes and free pages on LRU. > This scan nr_scan_pages in LRU and returns the number of successfully > freed pages. > == > > Then, running this progam in SCHED_IDLE, a user can make free pages while > the system is idle. If running in the highest priority, a user can keep > free pages as he want. If a user run this under a memcg, user can free > pages in a memcg. This is interesting. We can make userspace kswapd as we like with this syscall. But it seems harder to be accepted... Regards, Satoru -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href