yashsingh1/xdaforums huggingface dataset:
[EVO 4G General] FractalSphere:
Dual-core processors on phones - well, there's a couple schools of thought.

Lower hit on battery since each individual core could be used or not (essentially shutting down half the power demand when at low CPU use).

Higher performance when both cores are fulling cranking on some video, game, or other application.

Personally, I think once Android and the phones hardware have both matured (a couple more years, likely) we'll see laptop "shells" where the phone plugs into and everything runs off the phone unit but with a full-size screen, keyboard, video conferencing, DVDs, etc. That will require dual-core processing at least.

Battery life should be a BIG focus, both improving hardware demands on existing batteries but improving battery technology in general. I know both are ongoing projects, but really - we need a battery breakthrough of some sort SOON.

Just my 2¢.. :D
[EVO 4G General] HondaCop:
Have you heard of Atrix?

PS. My name is HondaCop and I approve this message.
[EVO 4G General] felacio:
Yep. Atrix looks SICK!. ENGADGET posted their review of it, needless to say, they loved the phone. Stating its their favorite android device.

It is a dualcore and in their review said they got 24hrs off a single charge with heavy use. Guess that puts the "better battery life" talk into perspective.
[EVO 4G General] SayWhat10:
I have no clue what this is supposed to mean
[EVO 4G General] SayWhat10:
I think I see your point, but TERRIBLE analogy

In your case, you're making the tank BIGGER

In my case, I dont want the battery bigger at all. We want the same size, slim batteries, but BIGGER capacity to last longer.

I mean really according to you we could just make the phone bigger, to the size of a tablet or netbook to solve the problem.....

And there's more than one way to make a car, well phone, more efficient. Instead of trying to save juice with the processor, why not just put more juice into the same space?(in the battery, with newer technology of course)

So nice attempt at a sass, but try again

This current technology of batteries, how many years have we been using the same on thing?
[EVO 4G General] Award Tour:
The Atrix 4G is dual core, performs like a beast, has a huge battery, is about as slim as a iPhone 4, and gets over 24 hours of life under heavy use.

...so what's the problem?
[EVO 4G General] coiledwire:
The fact is advancement in battery technology is much much slower than processor technology. If we want our little devices to last longer in the near term, we need better processors.

From a manufacturing point of view, all of the facilities are in place for processor advancement to market. Even when new battery tech is discovered, it will take years to market.

From my EVO when I should probably be doing something else instead.
[EVO 4G General] Mark_in_Tulsa:
Battery tech has hit a stand still. All the major car manufactures are spending billions on battery tech. Yes they can improve with what we got, but only so much chemical reactions can happen in a small little battery.

I can't fathom why you would want cell phone manufactures to focus more on battery tech that has minute increments in improvement vs. improving the power consumption of the phone it's self which is improving in major steps.

Unless you have stock in some kind of battery manufacture, I don't know why you don't want them to improve the actual power thirst of the phones instead of wasting resources on a tech that has not had a major breakthrough in a while.

The largest consumer of juice if I remember correctly is the screen it's self on a phone. And there are major advancements in that as well. I believe it's qualcomm who has a future screen thats suppose to be great on battery thirst as well. Are you going to start a topic on stopping screen improvements as well when that comes out?

Also side note, cell phone manufactures don't design and make their batteries. There are handful of battery manufactures who design and and improve what they have and they supply the majority of batteries out there.
[EVO 4G General] xlGmanlx:
AT&T network (depending on location could be issue)

AT&T prices depending on your situation could be an issue

new contract some might not be able to jump right now

$500 dock cost

Moto blur
[EVO 4G General] aph:
Ding ding ding we have a winner. This is correct.

Besides that, dual cores allow one core to stay semi-dedicated to the OS unless you are doing some heavy multitasking. This keeps the user experience smooth and uninterrupted like the (take a breath) iPhone.

2 cores area really a no-brainer from a systems architecture standpoint, no matter which way you slice it. I love my Evo and I'll be the first one to upgrade to a comparable dual core phone.
[EVO 4G General] Eat it iPhone:
Simple...

better battery life - 50% cpu on 2 cores uses less energy than 100% on 1 core.

better performance - higher video resolutions, 3D, smoother apps (3D video recording anyone?)

Ability to "thread" apps...in other words do the same thing in less time utilizing more cores. Its easier and uses less power than a voltage/mhz bump.

Its cool

You arent required to use a dual core phone, but id like to.

Gaming...i know i know you dontcare, but anyone whos going to play playstation on the phone (why buy a psp if your phone plays comparable games?) is going to benefit.
[EVO 4G General] Shagman68:
Hmm, ok. This is what I see... Waa waa battery, blah blah battery... Go to ebay and buy 3 batteries for your phone for $15. Boom done.

P.S. I have 4

Sent from my Vibrant using the XDA app.
[EVO 4G General] lehalter:
Can't Devs end up making the dual core phones run better than stock? I am using MIUI right now and my phone has never worked better.
[EVO 4G General] aimbdd:
yeah, somewhat, but rewriting apps for two threads? man that would be a ton of work...
[EVO 4G General] bkrodgers:
Even if apps aren't updated to take advantage of multiple cores, any OS will always have multiple tasks of its own, plus there are background services running to do various things (sync, play music, etc). Each app might be coded to run in a single thread, but as long as the OS can make use of multiple cores, you can have two of those single-threaded tasks running at the same exact moment, whereas on a single core the best it can do is quickly swap tasks in and out. It'll do that still with multiple cores, but each core can do something distinct at every moment in time. That's a huge advantage.
[EVO 4G General] xlGmanlx:
Personally I think there have been pretty solid arguments for dual core
[EVO 4G General] ryanleafasaurus:
ya I haven't read all posts on all 11 pages but has anyone said this...

the phone manufacturers don't make the processors......... so what do you mean focus on things like battery life and build quality, that IS what a phone manufacturer like HTC focuses on.

and companies like qualcomm focus on making their processors faster, more efficient etc.
[EVO 4G General] SayWhat10:
Well sure they have,but I think people are kinda of missing what the OP is trying to say(which he can correct me if he wants but):

I dont think he was asking is dual core better than single core,and it seems all people are posting is how dual core is better. Common sense and a 4yr old kid would say dual core is better simply because 2 is better than one. We arent disputing that folks.....

What he is trying to say is that dual core is overkill,not in general,but simply for a cellphone it is. I tend to agree,for the average user that is:

Because again the main thing people do with smartphones really is use it to call people of course, and browse the net and check email(of course you can run 1.5mill other apps and do different stuff).

So if im making a 5min call to my friend, will dual core make my phone call him faster? prevent the call from being dropped? I think not. One would not recognize the phone has dual core.

If im checking the email, or browsing websites on my phone, will my browsing speed go from 4G to topline 50mbps down Fios speed because its now a dual core phone? I think not. Only difference you may see is if watching flash video from a website(although I can watch flash on my current Evo just fine,if you dont know already it doesnt have a dual core)

You'll only notice a performance boost out of a dual core phone if you're trying to run 42apps at once, play 3d games, or rip or convert HD quality video of a full DVD within 5min. And I mean you dont have to multi task on a phone. Most people use one at at a time anyway. Sure you can have 6 apps or so open on an EVO, but are you actually using them simultaneously?

If you dont due a lot of things AT THE SAME TIME,then you surely wont see the benefit of a dual core(i mean thats what its for right? to share duties that are going on).

If you use an extended battery like I do and can last a whole day off one overnight charge, then you certainly wont be tripping off how much battery a dual core can save. Thats why I disregard all the "battery tips" to turn off 4G,GPS,etc,because it doesnt matter with my 3500mah battery. All the improvements these manufactures make are based off the consumer using a standard slim battery(but no manufacturer[any manufacture of any type part] wants to bring the battery technology up to a new level)

If you can pack more energy into a same size battery, you dont even have to worry about trying to make a phone part use less energy or heat(unless that part was overheating in the first place)

So again, folks realize that me and the OP already know a dual core is better/faster/efficient etc,but is it overkill for just a phone? I mean whats next, throw in a phone processor similar to Intel's 6-core processor,all in the name of saving heat and saving battery?

So i mean if the Evo2 comes with dual core sure I'll take it. But im sure even if they just speed up the phone instead of adding cores I'd be fine with that. I dont run 42 apps at once and I dont really use any "memory hogging CPU intensive programs" to warrant a dual-core only need.
[EVO 4G General] Product F(RED):
Dual Core won't matter until apps are written to take advantage of both cores. It's the same thing on PC.

/thread.
[EVO 4G General] aduljr:
I dont think this has been mention but architecturally all the dual-core cpu are cortexA9 cores vs cortexA8. This brings efficiencies of an out-of-order architecture to the mobile space along with some other improvements that make each core more efficient than the previous generation.
[EVO 4G General] xlGmanlx:
Correct me if I am wrong here but if the os is written property it can do some of that itself. The way I see it is cell phone like this replaces netbooks, see the Atrix as an example where the specs make sense
[EVO 4G General] HondaCop:
Hardware comes before software. You must first have dual core cpus available before devs begin to code for it. Not the other way around. Thread reopened.

PS. My name is HondaCop and I approve this message.
[EVO 4G General] Product F(RED):
That's what I said. If you want to br able to utilize both cores, apparent have to be written to split tasks into mutliple threads so both cores will be used.
[EVO 4G General] xlGmanlx:
And to his point the devs probably won't write software if it isn't in the wild yet, no return on investment
[EVO 4G General] Never4saken:
The amount of performance gained by the use of a multi-core processor depends very much on the software algorithms and implementation.

I guess I say why do we need two with no software able to use there ability (Cell Phone)
[EVO 4G General] driguez:
Was this supposed to be on green font or something? Battery is one of the benefits of multiple cores, well you probably still using a pentium 4 or something, go try an i5 or i7, its like comparing a vespa to a hayabusa. Is it overkill on a phone? Maybe it is today, do i think it will push the mobile industry? You bet your ass it will. BTW, 4 batteries? seriously? wow lol
[EVO 4G General] gimmetaffy:
Simply put, dual core architecture at the very least should roughly double the potential performance of any software that is capable of taking advantage of multi-core.

Asking for a single core to double performance over 1 generation on the other hand is more likely to cost more, and be much harder to achieve.

The multi-core strategy for processors offers better efficiency (think shutting down unused cores), more real-time priority processes to run simultaneously, and scalability in performance, and I would bet this all comes at a much more affordable cost to the manufacturer and us.

Multi-core really only has benefits to the end user IMO, and is completely transparent to the user as far as function goes.
[EVO 4G General] strung:
android since day one uses processes and threads so multiple core will automatically benefit you

also multiple cores running at lower clock speeds -> less power use. one number i read was 75% less power use. though that also probably is due to smaller process and refined design
[EVO 4G General] xlGmanlx:
I think it's known the advantages of multiple cores, the thread is will we see any real world improvements. My thoughts are as phones get more like the moto Atrix they can replace netbooks by leveraging that docking station method. using that the method, the likelihood of needing multicores increases
[EVO 4G General] Quis89:
What takes less energy to ride...a bicycle or a unicycle??

Is that question relevant? Maybe....maybe not. But it sounds good...
[EVO 4G General] coiledwire:
I don't understand this thread anymore. The fact is the next EVO will have multi-core CPU/GPU. No way it gets released with anything less.

The same line of thought is whether or not you're upgrading your phone on a yearly basis or not. You can keep the EVO for 4 to 5 years because its good enough, or you can upgrade to have the latest and greatest for the same initial cost.

How many people here are still running a Pentium2 with Windows98? That pc probably still works for 98% of what computers are generally used for.

So who cares if its necessary? You will have a multi-core CPU if you get a top-shelf smart phone, and you won't start a thread wishing it had a lesser processor.

/thread

From my EVO when I should probably be doing something else instead.
[EVO 4G General] riahc3:
I addressed this also in another thread:

Dual core processors cant be used (well, arent supported) on Android 2.3 Gingerbread/Linux kernel 2.6.35, there is only multi-core processor support in A3H/L2.6.36 (only avaliable (officially) on tablets). We will see problably support in in "A4I"/"L3.6.37" for both phones and tablets.

So whats everyones obsession? The only thing you are problably gaining is a SLIGHT speed boost/lost (yes, badly programmed applications can actually make your phone go slower if its dual core). Even if it does go faster, it is not even close when a kernal that supports it is released. And of course the other factor more battery drain (currently; itll get better and even out over time...)

On a counterside this could bring good marketing to Google: They release "A4I", current dual core phones get a HUGE speed boost and everyone praises Google. Could work good for them.

As of right now, dual core processors serve NO purpose as the OS, kernel and applications do NOT use them (well, dont KNOW HOW to use them, if you know about programming, you'll understand)
[EVO 4G General] aimbdd:
Need to have the processors in hand before anyone will work on supporting them.
[EVO 4G General] fixxxer2008:
Android will never utilize the dual cores anyways. Thats why im buying the nexus s and skipping the evo3d.
[EVO 4G General] MarkGbe:
never? that's bold.
[EVO 4G General] fixxxer2008:
Ok my bad "currently" doesnt use it and the 3d wont either.
[EVO 4G General] aimbdd:
It wont use it, until the summer release of android you mean? lol...
[EVO 4G General] phatmanxxl:
I say dual cores will be the standard of high end smartphones by next year.
[EVO 4G General] aimbdd:
I say quad cores will be the standard of high end phones next year... ;)
[EVO 4G General] Justin.G11:
If they would just hardware accelerate the UI already it would almost be like a dual core upgrade for existing phones as we seem to have this GPU that just sits there atm ...
[EVO 4G General] Product F(RED):
I agree. They don't do it for compatibility, unfortunately.
[EVO 4G General] swaze:
LOL, yeah then you will be mad when the 3D comes out, and then 2.4 comes out a week later with full dual core support included.
[EVO 4G General] Award Tour:
And it'll only take until Q4 2011 to get the update with updated drivers.
[EVO 4G General] aimbdd:
Don't remember how long it took htc for the first couple updates? They did great at first.
[EVO 4G General] gpz1100:
The major benefit of dual core is poorly written software will run exceptionally fast.
[EVO 4G General] cdszoke:
I been reading alot of reviews on the current round of dual core phones and the main consensus is that the dual cores get better battery life than single core phones. At least when it comes to Android. I posted an article a few months ago where Nvidia explains how dual core proc. has better battery management. Matter of fact I'll link it in this post. This report came out before any dual cores were on the market. Now every review I read and watched on the Atrix 4g and LG seems to show the phones lasting well over a full workday. Well, at least this is just an observation of mines.

http://www.engadget.com/2010/12/08/nvidia-touts-the-benefits-of-multi-core-processors-for-smartphon/
[EVO 4G General] Award Tour:
Benchmarks show that they last a little bit less or equal to single core phones, but a ton of single core (OMAP Droids specifically) outperform dual cores by a lot. The Atrix battery life is amazing but that has more to do with the super huge battery (1930 mAh vs the usual 1400-1500) it has. I'm talking Tegra 2 BTW. I haven't seen anything of the newer OMAP or Samsungs chip, but they'll probably be around the same ballpark as the Tegra 2. The HTC dual core is almost definitely going to be worse than those three.
[EVO 4G General] cdszoke:
Honestly I never did thought of actually looking up any benchmarks. I will google them for sure. I usually watch and read phone reviews and none I read actually went scientific with their statements on battery life. Mostly just real world experience and the same people who usually bash Android phones for bad battery life gave good marks to the Atrix and LG g2x. You are right about the Atrix battery but remember the LG has a 1500 mah battery and reviewers are giving it good mark for battery life. You are also right on the fact that these are Tegra 2 and God knows if Qualcomm's new set will be comparable or better. I am hopeful though.
[EVO 4G General] Award Tour:
If I remember right the LG 2X (Tegra 2/1500 mAH) was inbetween the EVO and Nexus S (but close to the Nexus S) but the Droids crushed it by like 2 hours. Anandtech had a article on it.

Edit: http://www.anandtech.com/show/4144/...ra-2-review-the-first-dual-core-smartphone/15

Keep in mind that SAMOLED phones do poorly in the web browsing benchmark because most sites are black text on white and SAMOLED displays suck up a ton of battery displaying a screenful of white pixels.
[EVO 4G General] :
As I understand Dual Core CPU's allow execution of multiple threads instead of working on one thread. A single core CPU would have to work harder (or take more time to execute 4 threads.

While a Dual Corecould execute 2 threads at once. Well if you have one application executing thread after thread but not together what use is it to have Dual Cores.

Now everyone says it will improve performance. But What threads are being processed that need dual cores. Most likely thing i can think off is put the adnroid OS to run on one core and other things on the other core or something similar. Other than that the current applications and OS isn't made to use Dual Cores It is ment to go threading one at a atime chugging along.

In a nut shell the program needs to know how to process threads in a way that allows one to be on one core and another on the other. IF the program only knows how to go in order well then your screwed.
[EVO 4G General] swaze:
Ur really an idiot if you believe that garbage.

Sent from my HTC Evo running CM7
[EVO 4G General] gpz1100:
I think it's up to the OS to properly distribute threads among the cores. Just like windows balances loads on multicore cpu's. There is a price to pay for that of course, but ultimately, performance should still be much improved with multicores.
[EVO 4G General] :
But it is not currently designed to dstribute the threads. IT all comes down to threads. If it can do that then you will see the system wont bog down. not necessarily a boost in snappyness.
[EVO 4G General] swaze:
By the time the phone drops well have 2.4 with dual core support and case closed.

Sent from my HTC Evo running CM7
[EVO 4G General] Award Tour:
...and why is that? How long was the wait between Froyo and Gingerbread? That's right, we're still waiting. I wouldn't be surprised if it was as fast as Eclair to Froyo but I wouldn't be surprised if it turns out the other way around either. You get mad way too easily over things that are possible but go against what you want to believe.
[EVO 4G General] swaze:
Lol first noone is getting mad. Nothing said on this board could ever upset me. But I'm not waiting for gb so I guess that's not meant for me. But seeing that the code and binaries have already been released into aosp I find such a wait to be kinda funny. But of course when it comes to sprint and anything related you believe the worst. Lmao.

Sent from my HTC Evo running CM7
[EVO 4G General] eck0728:
Lol fail troll .....

I've been running 2.3.3 sense for a couple weeks now... So its unofficial it runs 100000x better than froyo... Flipz did a great job on the bugs
[EVO 4G General] mattykinsx:
I know man, i get ya.

While were at it, why bother with 4g?

Or hell, 3g?

Whats the need? I remember phones working just fine without it.

In fact, if history is accurate, people have lived for thousands of years without cell phones, whats the point right?

Complaints about advances are fail.

By the way,

There a millions of people with sense.

I prefer to run aosp my self though.
[EVO 4G General] Award Tour:
Actually my point was the driver issue. HW acceleration will almost definitely be very dependent to driver support. If there's no official release, there may not be driver source or even HW acceleration support in Android for the GPU itself.

The newest official Android 2.3.3 update for the N1 supposedly has newer Adreno 200 drivers but without source the EVO on CM7 still doesn't have them. There's a ton of issues that can arise.
[EVO 4G General] overclockxp:
I'm using my phone for more stuff everyday. As my needs grow it is great that technology grows with me.
[EVO 4G General] dmora01:
They need to put the money in improving the network, why do we need super phone if the network is getting bad to worst every day, I can't imagine if more people sign in, is not going to be nothing left. I am talking about Sprint, my service is terrible.
[EVO 4G General] mattykinsx:
Carriers CARRY phones, they do NOT make the phones.
[G2 and Desire Z Q&A, Help & Troubleshooting] deliriousDroid:
Well this is gunna seem like a n00b question, but here it goes...

How do I do a nandroid backup? I am starting to get into applying themes and I really don't wanna brick my phone.

Mods- I did a search, and didn't find anything though all the Rom threads

Sent from my SilverBullet "RootedHTCDesireZ"
[G2 and Desire Z Q&A, Help & Troubleshooting] OriginalGabriel:
Boot into recovery and select backup
[G2 and Desire Z Q&A, Help & Troubleshooting] joemm:
Or you can make one in Rom Manager.

Sent from my HTC Vision
[G2 and Desire Z Q&A, Help & Troubleshooting] deliriousDroid:
Okay, I have tried it before on Rom manager (didn't know that backing up the Rom was a nandroid backup at the time) but I'm not sure if it worked. When I go into manage backups it is just a blank screen(except the add)

Does it get sent to the SD-card then?

Sent from my SilverBullet "RootedHTCDesireZ"
[G2 and Desire Z Q&A, Help & Troubleshooting] Ganii:
You have installed the latest 3.0.0.5 recovery via ROM Manager,or a old

3.0.0.5 from a other site?