Laptops energy consumption: save or not


We perform 2 diagrams for each test. The first includes the absolute tests' results. Blue lines ??“ are the results with min loading (for more obvious comparison). Purple lines ??“ are the results for the specified test. The second diagram shows the relative results. It is possible to see from them the energy a component consumes in comparison with min loading of the mobile computer.

The time of the unmanaged mode of the mobile computer when min loading


Display is the most important part of a mobile computer. It's used always when we work with a laptop. And sometimes it is difficult to notice the max brightness setting especially during the day under the sun. How does it affect the energy consumption? Let's see the diagram!

The time of the unmanaged mode of the mobile computer when display brightness is 100%

The results are very significant. The difference between min and max brightness is from 15% to 25%, that is 30-60 minutes (versus from the laptop model). There is the first advice for you: set the brightness to possible min for your laptop.

Processor, RAM, Video Card

Processor and RAM are used always too. But their usage depends from the loading of the computer. It should some energy to read or write a text. To edit a big picture in Photoshop needs more energy. Video Card that operates in two-dimensional graphic is needed in a small amount of energy. But Windows Vista interface with three-dimensional switching between windows will affect the unmanaged mode of the mobile computer.

The time of the unmanaged mode of the mobile computer when max processor loading

Processor is angry when it is loaded a lot, and it consumes a lot of energy. Single-kernel Celeron M that is set in Acer Aspire 5315 is the exception. We suppose that all other participant of the testing have double kernel processors. And none of the save energy technologies work when they were loaded. And 2 kernel consume more energy (and within more rate) then 1.

Unmanaged mode time when RAM is max loaded

RAM consumes less energy than processor but if it is loaded completely a laptop will operate 30-35 % less. What is loaded processor and RAM? In addition to the described processes it will be browser (if you open and close pages with hard layout or a large amount of pictures), frequent opening and closing big documents, even watching films and listening music.

Unmanaged mode time when video card is max loaded

The video card loading with the purpose to hasten 3-D graphic will lead to the very essential energy consumption. Don't forget that during this processor and RAM are loaded almost always. Games and other 3-D applications ??“ is a good way to load the computer and to discharge the accumulator in the laptop.

The results were almost the same as with the processor. Again Acer Aspire 5315 is the more saving then others. But it flabby built in video card obviously consumed less energy then processor. It is necessary to interpret the results in two ways. Integrated graphic consumes less energy but processor during this situation consumes more (if we deal with 3-d application).

Discrete video card will consume more but processor will not operate if video card cannot to load all.

The most balanced way to discharge the accumulator. Notice that after graphic test the max energy has Dell Latitude D630 and Toshiba X200 - laptops with big discrete video cards.

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Kelly#10 0
Yep! I find what you're saying to be true, at least in the mjtroiay of cases. Considering the years of research and developement, not to mention huge wads of cash, gone into developing both the hardware and the code to control it, some things are better left in-house. And I serioulsly doubt that your coffe would taste any better should your microwave oven run Linux. Nevertheless the call for free code has never been louder than it is today, arguably voices were louder in the sixties, but that was for free love / drugs / whatever, they did not care about code back then, that was military stuff. And, yes, the free code has not only a niche to fill but also a market, these are though largely concerned with exstensions to available technology. How about interfacing your server farm to a display system? Your RAID array to your printer? Hell, how about connecting your toaster to the coffee machine, and the fridge, and to your alarm clock for a timed, ready to eat brekfast?The point is that there is great benefit to be found in leaving your options open, now this may not necessarily mean open code but at least developing coherent standards. Cue the magic teenagers. As long as they have handles to grab they may yet be able to have your breakfast ready the minute you're human enough get out of bed, but leaving your code open is like telleing the world Hey! Put me out of business will ya! .No seriously, I believe that the call for open code for systems, best developed in-house with complete documentation of the involved technologies is a cry from a generation with hubris, not to mention used to getting the way they want whenever they want it . Bloody communists , some may say. Well, I'm inclined to agree. If you find the technology to be inferior you'd be better off calling in some hardware professionals (if you're not one of those as well), develop the product, insert your own code, and pretty soon you'll be running to the patent office and fighting neverending court battles to retain your livelihood. You see, now you're like that corporation you wanted to open their code for you, and you're afraid of competitors buying some other teen's knowledge to throw you out of business.Well here's a tip. Let your hobby stay a hobby. If you're confident enough that your solution is better, go into business and prove that it is.And if your proof is good enough I may one day wake up to a set breakfast without having to hire a Polish maid.Oh yeah, I'd probably still be late for work
Randhil#20 0
Could you coseidnr putting your book trailers on teacher tube and some of the other book trailer sites? Most schools block youtube and so we can't use the trailers with the kids or linked to our book blogs.
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