On Wed, Oct 20, 2010 at 11:43:45AM +0800, Figo.zhang wrote: > > > > active_anon:398375 inactive_anon:82967 isolated_anon:0 > > > active_file:81 inactive_file:429 isolated_file:32 > > > unevictable:13 dirty:2 writeback:14 unstable:0 > > > free:11942 slab_reclaimable:2391 slab_unreclaimable:3303 > > > mapped:5617 shmem:33909 pagetables:2280 bounce:0 > > > > active_anon + inactive_anon + isolated_anon = 481342 pages ~= 1.8GB > > Um, this oom doesn't makes accounting lost. > > > > > total 515071 2011 > > > > page-types show similar result. > > > > > > The big difference is, previous and current are showing some different processes. > > only previous has VirtualBox, only current has vmware-usbarbit, etc.. > > > > Can you use same test environment? > yes, it is the same desktop, and i open some pdf files and applications > by random. > > but when my desktop eat up to 1.8GB RAM (active_anon + inactive_anon + > isolated_anon = 481342 pages >= 1.8GB), the system became extraordinary > slow. when i move the mouse, the mouse cant move a little on screen. i > deem it have "crashed", but i ping it's ip by other desktop, it is ok. > > so what is apect affect the system seem to "crashed", page-writeback? > page-reclaimed? and the oom-killer seem to be very conservative? in > that condition , oom_killer must kill some process to release memory for > new process. I think it just simply the test caused system *almost* dead but not really trigger oom-killer. You have 2GB RAM, right. 0.2G is a huge amount of memory for Linux kernel. If you do want to test the new oom-killer, you can just right a simple program to allocate memory continues but make different instances to eat memory in different paces. Then, you can find out who will be killed first eventually. /Adam > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>