Re: slow performance on disk/network i/o full speed after drop_caches

Stefan Priebe
2011-08-26T03:13:22Z

>> There is at least a numastat proc file.
>
> Thanks. This shows that node0 is accessed 10x more than node1.

What can i do to prevent this or isn't this normal when a machine mostly idles so processes are mostly processed by cpu0.

>
>> 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?
Sadly not as the sysrq trigger has rebootet the machine and it will now run fine for 1 or 2 days.

>
>>> 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..
That was everything i could grab through netconsole. Is there a better way?

Stefan
>