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On Fri, Jul 3, 2015 at 6:37 AM, Sylvain Bauza <sbauza at redhat.com> wrote:

>
>
> Le 03/07/2015 15:25, Jay Pipes a écrit :
>
>> On 07/03/2015 06:32 AM, Sylvain Bauza wrote:
>>
>>> Le 02/07/2015 21:40, Jay Pipes a écrit :
>>>
>>>> On 07/01/2015 12:23 AM, ChangBo Guo wrote:
>>>>
>>>>> thanks Dan and Jay,  we don't need add new scheduler for that  :-),
>>>>> what about provide cpu frequency to  api  /os-hypervisors, that  means
>>>>> we can
>>>>> report this value automatically,  the value can be used in high level
>>>>> mange tools.
>>>>>
>>>>
>>>> Meh, I'm not too big of a fan of the os-hypervisors extension.
>>>> Actually, one might say I despise that extension :)
>>>>
>>>> That said, I suppose it should be possible to include the output of
>>>> the CPU frequency in the cpu_info field there...
>>>>
>>>>
>>> Well, IMHO I don't like to have the Hypervisors API to be a Nagios-like
>>> view of the hypervisors world and I don't really much benefits of pusing
>>> the metrics up to the API.
>>>
>>> On the other hand, those monitor metrics are already sent as
>>> notifications on the bus [1] so a 3rd party tool can easily fetch them
>>> without necessarly needing to extend the API.
>>>
>>
>> Yeah, the difference here is that CPU frequency really isn't a metric...
>> it's a static thing that doesn't change over time. Which is why I think
>> it's OK to put it in cpu_info.
>>
>>
> Oh, you're right, it's a very static thing. If it's not a metric, then I
> would like to see it removed from the CPU monitor and provided in cpu_info
> then.


Max CPU frequency may be static, but the the CPU frequency being used can
be dynamic: https://en.wikipedia.org/wiki/SpeedStep


>
>
> -Sylvain
>
>
>
>
>  Best,
>> -jay
>>
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