[CentOS-virt] KVM

Mon Feb 8 20:53:47 UTC 2016
Alvin Starr <alvin at netvel.net>

You need to provide more information.
20% is what number.
There are something like 6 numbers on that line.

On 02/08/2016 02:56 PM, Gokan Atmaca wrote:
>> 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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>>
>>
>> --
>> Alvin Starr                   ||   voice: (905)513-7688
>> Netvel Inc.                   ||   Cell:  (416)806-0133
>> alvin at netvel.net              ||
>>
>>
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-- 
Alvin Starr                   ||   voice: (905)513-7688
Netvel Inc.                   ||   Cell:  (416)806-0133
alvin at netvel.net              ||