Re: who can explain cpu.overprovisioning.factor more detailed?

[Kirk Kosinski]

Compute Offerings in CloudStack are configured with both CPU speed (MHz)
and CPU core count.  CloudStack will not allow you deploy a VM using an
offering with 10 cores if your hosts only have 8 cores, regardless of
the configured CPU speed.  The VM deployment will fail.

Some hypervisors actually do allow such deployments, but the hypervisor
vendors strongly discourage it.  The documentation I've seen suggests
there are performance problems with such a configuration.  I've never
seen a reason to use such a configuration and the best practices guides
I've read recommend configuring VMs with the fewest cores possible.  If
anyone has a valid use case for this and really needs it, file an
enhancement request to allow it in CloudStack.

Best regards,
Kirk

On 09/18/2013 01:30 PM, Rafael Weingartner wrote:
> I guess it would depend on the amount of CPU power you give, as and example
> if you give 10 cores with 1Ghz, the CS probably would allocate the VM if
> you have 8 real cores with 2Ghz each.
> 
> 
> 2013/9/18 Daan Hoogland 
> 
>> I'm guessing here; I think you can but you'll get an error deploying it.
>>
>>
>> On Wed, Sep 18, 2013 at 9:03 PM, Steven Liang wrote:
>>
>>>  Thank you for replying.
>>> I have another question. If there are only 8 core cpu on every hosts, can
>>> I assign 10 cpu to a vm?
>>>
>>>
>>> On 09/18/2013 01:31 PM, Daan Hoogland wrote:
>>>
>>> If you have 1G and a factor of 2, you van  instantiate 2 machines with
>>> 1G. This is useful of you don't expect all machines top be running art the
>>> dame time.
>>>
>>> Regards,
>>> mobile biligual spell checker used
>>> Op 18 sep. 2013 17:54 schreef "Steven Liang"  het
>>> volgende:
>>>
  Hi,

 What is cpu.overprovisioning.factor use for?
 Who can explain it more detailed?
 Thank you.

 --
 *Steven Liang*
 *Linux System Admin*
 *Phone*: 1.416.499.8009 ext. 2865
 *Cell Phone*: 1.647.718.5292
 *Email*: stevenli...@yesup.com
 www.yesup.com | account.yesup.com

 [image: Yesup]

>>>
>>>
>>> --
>>> *Steven Liang*
>>> *Linux System Admin*
>>> *Phone*: 1.416.499.8009 ext. 2865
>>> *Cell Phone*: 1.647.718.5292
>>> *Email*: stevenli...@yesup.com
>>> www.yesup.com | account.yesup.com
>>>
>>> [image: Yesup]
>>>
>>
>>
> 
> 

Re: who can explain cpu.overprovisioning.factor more detailed?

[Rafael Weingartner]

I guess it would depend on the amount of CPU power you give, as and example
if you give 10 cores with 1Ghz, the CS probably would allocate the VM if
you have 8 real cores with 2Ghz each.


2013/9/18 Daan Hoogland 

> I'm guessing here; I think you can but you'll get an error deploying it.
>
>
> On Wed, Sep 18, 2013 at 9:03 PM, Steven Liang wrote:
>
>>  Thank you for replying.
>> I have another question. If there are only 8 core cpu on every hosts, can
>> I assign 10 cpu to a vm?
>>
>>
>> On 09/18/2013 01:31 PM, Daan Hoogland wrote:
>>
>> If you have 1G and a factor of 2, you van  instantiate 2 machines with
>> 1G. This is useful of you don't expect all machines top be running art the
>> dame time.
>>
>> Regards,
>> mobile biligual spell checker used
>> Op 18 sep. 2013 17:54 schreef "Steven Liang"  het
>> volgende:
>>
>>>  Hi,
>>>
>>> What is cpu.overprovisioning.factor use for?
>>> Who can explain it more detailed?
>>> Thank you.
>>>
>>> --
>>> *Steven Liang*
>>> *Linux System Admin*
>>> *Phone*: 1.416.499.8009 ext. 2865
>>> *Cell Phone*: 1.647.718.5292
>>> *Email*: stevenli...@yesup.com
>>> www.yesup.com | account.yesup.com
>>>
>>> [image: Yesup]
>>>
>>
>>
>> --
>> *Steven Liang*
>> *Linux System Admin*
>> *Phone*: 1.416.499.8009 ext. 2865
>> *Cell Phone*: 1.647.718.5292
>> *Email*: stevenli...@yesup.com
>> www.yesup.com | account.yesup.com
>>
>> [image: Yesup]
>>
>
>


-- 
Rafael Weingartner

Re: who can explain cpu.overprovisioning.factor more detailed?

[Sean Hamilton]

Isn't it down to the MHz described in the service offering. Rather than core 
count?

On 18 Sep 2013, at 20:37, Daan Hoogland  wrote:

> I'm guessing here; I think you can but you'll get an error deploying it.
> 
> 
> On Wed, Sep 18, 2013 at 9:03 PM, Steven Liang  wrote:
>> Thank you for replying.
>> I have another question. If there are only 8 core cpu on every hosts, can I 
>> assign 10 cpu to a vm?
>> 
>> 
>> On 09/18/2013 01:31 PM, Daan Hoogland wrote:
>>> If you have 1G and a factor of 2, you van  instantiate 2 machines with 1G. 
>>> This is useful of you don't expect all machines top be running art 
>>> the dame time.
>>> 
>>> Regards, 
>>> mobile biligual spell checker used
>>> 
>>> Op 18 sep. 2013 17:54 schreef "Steven Liang"  het 
>>> volgende:
 Hi,
 
 What is cpu.overprovisioning.factor use for?
 Who can explain it more detailed?
 Thank you.
 
 -- 
 Steven Liang
 Linux System Admin
 Phone: 1.416.499.8009 ext. 2865
 Cell Phone: 1.647.718.5292
 Email: stevenli...@yesup.com
 www.yesup.com | account.yesup.com
 
 
>> 
>> 
>> -- 
>> Steven Liang
>> Linux System Admin
>> Phone: 1.416.499.8009 ext. 2865
>> Cell Phone: 1.647.718.5292
>> Email: stevenli...@yesup.com
>> www.yesup.com | account.yesup.com
>> 
>> 
> 

Re: who can explain cpu.overprovisioning.factor more detailed?

[Daan Hoogland]

I'm guessing here; I think you can but you'll get an error deploying it.


On Wed, Sep 18, 2013 at 9:03 PM, Steven Liang  wrote:

>  Thank you for replying.
> I have another question. If there are only 8 core cpu on every hosts, can
> I assign 10 cpu to a vm?
>
>
> On 09/18/2013 01:31 PM, Daan Hoogland wrote:
>
> If you have 1G and a factor of 2, you van  instantiate 2 machines with 1G.
> This is useful of you don't expect all machines top be running art the dame
> time.
>
> Regards,
> mobile biligual spell checker used
> Op 18 sep. 2013 17:54 schreef "Steven Liang"  het
> volgende:
>
>>  Hi,
>>
>> What is cpu.overprovisioning.factor use for?
>> Who can explain it more detailed?
>> Thank you.
>>
>> --
>> *Steven Liang*
>> *Linux System Admin*
>> *Phone*: 1.416.499.8009 ext. 2865
>> *Cell Phone*: 1.647.718.5292
>> *Email*: stevenli...@yesup.com
>> www.yesup.com | account.yesup.com
>>
>> [image: Yesup]
>>
>
>
> --
> *Steven Liang*
> *Linux System Admin*
> *Phone*: 1.416.499.8009 ext. 2865
> *Cell Phone*: 1.647.718.5292
> *Email*: stevenli...@yesup.com
> www.yesup.com | account.yesup.com
>
> [image: Yesup]
>

Re: who can explain cpu.overprovisioning.factor more detailed?

[Steven Liang]

  
  
Thank you for replying.
  I have another question. If there are only 8 core cpu on every
  hosts, can I assign 10 cpu to a vm?
  
  On 09/18/2013 01:31 PM, Daan Hoogland wrote:


  If you have 1G and a factor of 2, you van 
instantiate 2 machines with 1G. This is useful of you don't
expect all machines top be running art the dame time. 
  Regards, 
mobile biligual spell checker used
  Op 18 sep. 2013 17:54 schreef "Steven
Liang" 
het volgende:

   Hi,

What is cpu.overprovisioning.factor use for?
Who can explain it more detailed?
Thank you.

-- 
  Steven Liang
Linux System Admin
Phone: 1.416.499.8009 ext. 2865
Cell Phone: 1.647.718.5292
Email: stevenli...@yesup.com
www.yesup.com | account.yesup.com
  
  
  

  



-- 
  Steven Liang
Linux System Admin
Phone: 1.416.499.8009 ext. 2865
Cell Phone: 1.647.718.5292
Email: stevenli...@yesup.com
www.yesup.com | account.yesup.com
  
  
  

Re: who can explain cpu.overprovisioning.factor more detailed?

[Daan Hoogland]

If you have 1G and a factor of 2, you van  instantiate 2 machines with 1G.
This is useful of you don't expect all machines top be running art the dame
time.

Regards,
mobile biligual spell checker used
Op 18 sep. 2013 17:54 schreef "Steven Liang"  het
volgende:

>  Hi,
>
> What is cpu.overprovisioning.factor use for?
> Who can explain it more detailed?
> Thank you.
>
> --
> *Steven Liang*
> *Linux System Admin*
> *Phone*: 1.416.499.8009 ext. 2865
> *Cell Phone*: 1.647.718.5292
> *Email*: stevenli...@yesup.com
> www.yesup.com | account.yesup.com
>
> [image: Yesup]
>

who can explain cpu.overprovisioning.factor more detailed?

[Steven Liang]

  
  
Hi,

What is cpu.overprovisioning.factor use for?
Who can explain it more detailed?
Thank you.

-- 
  Steven Liang
Linux System Admin
Phone: 1.416.499.8009 ext. 2865
Cell Phone: 1.647.718.5292
Email: stevenli...@yesup.com
www.yesup.com | account.yesup.com