How to find the voltage and current for each frequency configuration on Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz?

[AKoko]

Hello, I am currently using the DVFS technique to perform computational sprinting for applications. It is essential though, to know the power consumption for each frequency configuration of my processor. However I can not find the voltage and current that match each frequency configuration. My processor is Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz and I am using a Linux 3.8.0-44-generic Ubuntu distribution, if that provides any further help.

I would be grateful if you could provide me any help about the opperational performance points of my processor.

Thank you in advance!

[Jose_H_Intel1]

You may want to check page 95 here: https://www-ssl.intel.com/content/www/us/en/processors/core/2nd-gen-core-family-mobile-vol-1-datasheet.html 2nd Generation Intel® Core™ Mobile Processor Datasheet, Vol. 1

[AKoko]

First of all, thank you for your reply. The Datasheet does not solve my problem precisely, since I need the Voltage and Current values that match each frequency configuration in order to calculate the power. Do you have any further recommendations on how I can ready the state (voltage and frequency) of my machine for the different frequencies, or is there any datasheet involving such values?

[Ronny_G_Intel]

Hi Foufoutos,

I am with Intel Customer Support and I am trying to locate this information for you or address your request in the correct direction but I cannot promise anything as this maybe under restricted access.

Could you provide me with more details? Is this a business or an individual project? How many systems are involved? What is the purpose of the project?

You can send me a private message or you can call our Support Center and create a Service Ticket if you don't want this information to be disclosed in this forum.

http://www.intel.com/p/en_US/support/contactsupport http://www.intel.com/p/en_US/support/contactsupport

Thanks,

[Anonymous]

Hi Foufoutos,

I have escalated your case to our engineer department. We will give you an update very soon.

Regards,

Mike C

[Ronny_G_Intel · Accepted solution]

Hi Foufoutos,

Please accept my apologies for the delay in getting back to you with a response, as I mentioned before I work for Intel Customer Support so I took the detailed information that you sent me on a Private Message to justify this request and I went up to the engineering level and the answer I got from them is that the information that you are requesting is Intel Confidential and it cannot be shared with customers.

Based on that, I wont be able to help you with this request but please let me know if there is anything I can help you with.

Regards,

[DRodo]

Dear Intel community,

I have a similar issue with identifying the voltages that correspond to the P-states of my processor (Xeon 3470). Given the similarity, I believe my question is quite in-line with the current thread.

As I have read in Intel documentation [1] the p-states are actually pairs of frequencies and voltages, rather than a sole frequency value (per state). However, the DVFS driver of my system (Ubuntu OS with acpi-cpufreq driver for DVFS) is not exposing voltage information per core and per state. In that sense, I would like to check whether the available frequency-voltage pairs can be derived from any Intel documentation.

Given that I would like to have a valid power metric for my work, it is important that I have access to *both* frequency and *voltage* of each core's p-state.

I would like to thank you for your time.

Cheers,

--

drodo

[1] https://software.intel.com/en-us/blogs/2008/05/29/what-exactly-is-a-p-state-pt-1 https://software.intel.com/en-us/blogs/2008/05/29/what-exactly-is-a-p-state-pt-1

[Ronny_G_Intel]

Hi Drodo,

Please refer to my previous reply, unfortunately this information is Intel Confidential and cannot be disclosed.

Regards,