Ad: Check out the Canon EOS 5D Mark III
ie8 fix

Cell phones forum: To measure the power consumed by a mobile device for a speci

by: Kharthikeyan September 18, 2012 5:56 AM PDT

Like this

0 people like this thread

Staff pick

Resolved question

To measure the power consumed by a mobile device for a speci

by Kharthikeyan - 9/18/12 5:56 AM

Friends,

I need a help regarding my academic project where I am trying to measure the power consumed by a mobile device for a specific task. For example if we are using a calculator application and I perform addition of two numbers. I want to check the power consumed for this particular operation of addition. There are few applications like PowerTutor in Android mobiles, but they give the power consumed by the mobile on whole and not for a specific task. Can you please guide me or provide technical tips on this? Thanks, in advance!


Kharthikeyan has chosen the best answer to his/her question!
Click here to view the answer that was selected.

Answer This
Ask for clarification
Report offensive post
Email to friend
Answers
Answer Best answer as chosen by user Kharthikeyan

Re: power used for a specific task

by Kees_B Moderator - 9/18/12 6:16 AM

In Reply to: To measure the power consumed by a mobile device for a speci by Kharthikeyan

That's difficult.

My suggestion:
- first measure the power consumption in an idle state. That is, the program doing a 60 second wait.
- then measure the power consumption in a busy state. That is, while the program is doing 60 seconds of additions.
The difference is what you're looking for.

Kees


Was this reply helpful? (0)   (0)

Staff pick

Reply
Report offensive post
Email to friend
Answer Best answer as chosen by user Kharthikeyan

There's no accurate way to achieve such measurements

by Pepe7 - 9/18/12 7:50 AM

In Reply to: To measure the power consumed by a mobile device for a speci by Kharthikeyan

The main problem is, certain tasks running in the background (many locked down by the carrier ROM) will still be 'polling' (trying to connect to the mothership, etc.) while you are doing the measurements between idle state & the calculator app (etc.). The radios collectively pull some power. Anyway, 'Best guestimate' is as close as you will get IMO.


Was this reply helpful? (0)   (0)

Staff pick

Reply
Report offensive post
Email to friend
Answer Best answer as chosen by user Kharthikeyan

How we did that long ago.

by R. Proffitt Moderator - 9/18/12 7:56 AM

In Reply to: To measure the power consumed by a mobile device for a speci by Kharthikeyan

We wanted to see if our new PalmOS apps were doing anything odd to kill battery time (some folk call this life but as the battery can be recharged, that's not life but time.)

To accomplish this we would pull the battery and power the device with external power and a Watt meter. We'd use a procedure such as start the device, and then get to some home screen then reset the Watt meter and then perform a set of actions in a very specific sequence and time.

Repeat that about a dozen times, throw out the high and low and then take the average of the 10 runs. If you want to know why that method, think back to your Statistics 101 class.

Hope this helps,
Bob


Was this reply helpful? (0)   (0)

Staff pick

Reply
Report offensive post
Email to friend

Forum Icon Legend

  • UnreadUnread
  • ReadRead
  • Locked threadLocked thread
  •   
  •   
  •   
  •   
  •   
  •   
  •   
  • ModeratorModerator
  • CNET StaffCNET Staff
  • Samsung StaffSamsung Staff
  • Norton Authorized Support TeamNorton Authorized Support Team
  • AVG StaffAVG Staff
  • avast! Staffavast! Staff
  • Webroot Support TeamWebroot Support Team
  • Acer Customer Experience TeamAcer Customer Experience Team
  • Windows Outreach TeamWindows Outreach Team
  • DISH staffDISH staff
  • Dell StaffDell Staff
  • Intel StaffIntel Staff
  • QuestionQuestion
  • Resolved questionResolved question
  • General discussionGeneral discussion
  • TipTip
  • Alert or warningAlert or warning
  • PraisePraise
  • RantRant

You are e-mailing the following post: Post Subject

Your e-mail address is used only to let the recipient know who sent the e-mail and in case of transmission error. Neither your address nor the recipient's address will be used for any other purpose.

Sorry, there was a problem emailing this post. Please try again.

Submit Email Cancel

Thank you. Sent email to

Close

Thank you. Sent email to

Close

You are reporting the following post: Post Subject

If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.

Offensive: Sexually explicit or offensive language

Spam: Advertisements or commercial links

Disruptive posting: Flaming or offending other users

Illegal activities: Promote cracked software, or other illegal content

Sorry, there was a problem submitting your post. Please try again.

Submit Report Cancel

Your message has been submitted and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.

Close

Your message has been submitted and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.

Close

You are posting a reply to: Post Subject

The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to the CNET Forums policies for details. All submitted content is subject to CBS Interactive Site Terms of Use.

You are currently tracking this discussion. Click here to manage your tracked discussions.

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

Sorry, there was a problem submitting your post. Please try again.

Sorry, there was a problem generating the preview. Please try again.

Duplicate posts are not allowed in the forums. Please edit your post and submit again.

Submit Reply Preview Cancel

Thank you, , your post has been submitted.

> Click here to view your post. > Manage your tracked discussions. > Track this discussion. Close

Thank you, , your post has been submitted and will appear on our site shortly.

Close

You are requesting a clarification of the question: Post Subject

The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to the CNET Forums policies for details. All submitted content is subject to CBS Interactive Site Terms of Use.

You are currently tracking this discussion. Click here to manage your tracked discussions.

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

Sorry, there was a problem submitting your post. Please try again.

Sorry, there was a problem generating the preview. Please try again.

Submit Clarification Request Preview Cancel

Thank you, , your post has been submitted.

> Click here to view your post. > Manage your tracked discussions. > Track this discussion. Close

Thank you, , your post has been submitted and will appear on our site shortly.

Close

You are posting an answer to the question: Post Subject

The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to the CNET Forums policies for details. All submitted content is subject to CBS Interactive Site Terms of Use.

You are currently tracking this discussion. Click here to manage your tracked discussions.

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

Sorry, there was a problem submitting your post. Please try again.

Sorry, there was a problem generating the preview. Please try again.

Submit Answer Preview Cancel

Thank you, , your post has been submitted.

> Click here to view your post. > Manage your tracked discussions. > Track this discussion. Close

Thank you, , your post has been submitted and will appear on our site shortly.

Close
close

Click here to be notified via e-mail when someone submits an answer.

Would you like to resolve this question? close

Based on your response, it looks like this question has been answered.



Sorry, there was a problem resolving this question. Please try again.

Resolve Leave unresolved