On Fri, Aug 26, 2011 at 10:54:35AM +0800, Stefan Priebe - Profihost AG wrote: > Hi Wu, > > > Ah you are running an older kernel that didn't show all the vmstat > > numbers. But still it's revealing that node 0 is used heavily and node > > 1 is almost idle. So I won't be surprised to see most free pages lie > > in node 1. > I'm running a 2.6.38 kernel. > > There is at least a numastat proc file. Thanks. This shows that node0 is accessed 10x more than node1. > grep . /sys/devices/system/node/node*/numastat > /sys/devices/system/node/node0/numastat:numa_hit 5958586 > /sys/devices/system/node/node0/numastat:numa_miss 0 > /sys/devices/system/node/node0/numastat:numa_foreign 0 > /sys/devices/system/node/node0/numastat:interleave_hit 4191 > /sys/devices/system/node/node0/numastat:local_node 5885189 > /sys/devices/system/node/node0/numastat:other_node 73397 > /sys/devices/system/node/node1/numastat:numa_hit 488922 > /sys/devices/system/node/node1/numastat:numa_miss 0 > /sys/devices/system/node/node1/numastat:numa_foreign 0 > /sys/devices/system/node/node1/numastat:interleave_hit 4187 > /sys/devices/system/node/node1/numastat:local_node 386741 > /sys/devices/system/node/node1/numastat:other_node 102181 > > >> modified it a little bit: > >> ~# while [ true ]; do ps -eo > >> user,pid,tid,class,rtprio,ni,pri,psr,pcpu,vsz,rss,pmem,stat,wchan:28,cmd > >> | grep scp | grep -v grep; sleep 1; done > >> > >> root 12409 12409 TS - 0 19 0 59.8 42136 1724 0.0 Ss > >> poll_schedule_timeout scp -t /tmp/ > > > > It's mostly doing poll() waits. There must be some dependency on > > something other to make progress. Would you post the full ps output > > for all tasks, and even better, run > complete ps output: > http://pastebin.com/raw.php?i=b948svzN In that log, scp happens to be in R state and also no other tasks in D state. Would you retry in the hope of catching some stucked state? > > echo t> /proc/sysrq-trigger > sadly i wa sonly able to grab the output in this crazy format: > http://pastebin.com/raw.php?i=MBXvvyH1 It's pretty readable dmesg, except that the data is incomplete and there are nothing valuable in the uploaded portion.. Thanks, Fengguang -- 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=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>