[Netkit.users] First official release of Netkit-NG

Julien Iguchi-Cartigny julien.iguchi-cartigny at lifl.fr
Fri Jun 13 13:10:22 CEST 2014


On 06/13/2014 01:07 PM, Saverio Proto wrote:
> Using iotop I see that the process that consumes all the IO time when
> the UML machines are very slow is:
> 
> jbd2/sdb1-8

jbd2 is now used (it is a fs system). I will try to build new images
this WE without it.

Thanks for your feedback.

J.


> I have this process using 99.99% IO time
> 
> This is when the UML kernel needs to perform a disk write operation
> 
> Saverio
> 
> 
> 2014-06-13 13:01 GMT+02:00 Saverio Proto <zioproto at gmail.com>:
>>> Could you precise if it's the I/O or the CPU use which seems slow ?
>>
>> Hello,
>> it is I/O problem. CPU is running low.
>>
>>> Could you describe your test computer architecture  (32/64 bits ?
>>> distribution ?) ?
>>
>> saverio at nockid:~$ cat /etc/issue
>> Ubuntu 12.04.4 LTS \n \l
>>
>> saverio at nockid:~$ uname -a
>> Linux nockid 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:37:58 UTC
>> 2013 x86_64 x86_64 x86_64 GNU/Linux
>> saverio at nockid:~$ cat /proc/cpuinfo | head
>> processor    : 0
>> vendor_id    : GenuineIntel
>> cpu family    : 6
>> model        : 42
>> model name    : Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
>> stepping    : 7
>> microcode    : 0x17
>> cpu MHz        : 2400.000
>> cache size    : 8192 KB
>> physical id    : 0
>> saverio at nockid:~$
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