[CentOS-virt] KVM

Mon Feb 8 19:56:42 UTC 2016
Gokan Atmaca <linux.gokan at gmail.com>

> If you run top what are you seeing on the %Cpu(s) line?

%20


On Mon, Feb 8, 2016 at 9:30 PM, Alvin Starr <alvin at netvel.net> wrote:
> Slow disks will show up as higher I/Owait times.
> If your seeing 99% cpu usage then your likely looking at some other problem.
>
> If you run top what are you seeing on the %Cpu(s) line?
>
>
> On 02/08/2016 02:20 PM, Gokan Atmaca wrote:
>>>
>>> I'm guessing you're using standard 7,200rpm platter drives? You'll need
>>> to share more information about your environment in order for us to
>>> provide useful feedback. Usually though, the answer is 'caching' and/or
>>> 'faster disks'.
>>
>> Yes , 7.2k rpm disks. 2T mirror (soft). In fact, I had such a
>> preference for slightly more capacity.
>> Unfortunately very expensive SAS drives.  But this works only if the
>> server in question occur.
>> In this case, about 15 minutes. progress.
>>
>>
>> On Mon, Feb 8, 2016 at 9:13 PM, Digimer <lists at alteeve.ca> wrote:
>>>
>>> On 08/02/16 02:12 PM, Gokan Atmaca wrote:
>>>>
>>>> Hello
>>>>
>>>> I use KVM. In a virtual machine "jbd2 dm-0" disk I / O is very
>>>> increases. It consumes up to 99%. For this reason, slowing down the
>>>> other virtual machine. What should I do to solve the problem. ?
>>>>
>>>> Thanks..
>>>
>>> I'm guessing you're using standard 7,200rpm platter drives? You'll need
>>> to share more information about your environment in order for us to
>>> provide useful feedback. Usually though, the answer is 'caching' and/or
>>> 'faster disks'.
>>>
>>> --
>>> Digimer
>>> Papers and Projects: https://alteeve.ca/w/
>>> What if the cure for cancer is trapped in the mind of a person without
>>> access to education?
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>>
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>
>
>
> --
> Alvin Starr                   ||   voice: (905)513-7688
> Netvel Inc.                   ||   Cell:  (416)806-0133
> alvin at netvel.net              ||
>
>
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