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

[Saverio Proto]

I mean jbd2 is taking IO time on the host machine.

Saverio


2014-06-13 13:10 GMT+02:00 Julien Iguchi-Cartigny
<julien.iguchi-cartigny a lifl.fr>:
> 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 a 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 a nockid:~$ cat /etc/issue
>>> Ubuntu 12.04.4 LTS \n \l
>>>
>>> saverio a 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 a 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 a nockid:~$
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