I got my awesome shiny new XPS yesterday. I am very pleased with it.
But today i began looking at tweaking and customizing it.....but i have noticed something quite disturbing.....
The phone doesnt seem to have both cores active!!!
When i check in "SystemPanel" it shows the list of 2 cores but only shows 1 as active......so i checked with "CPU Usage Monitor" and that lists the phone as only having 1 core?!?!
Is there a geek out there that can help me with this issue?
Is it me being a twot...or is there something that i dont know about?
From what i can tell the second core doesnt come on during gaming or benching.....
Im lost
7hr08ik said:
I got my awesome shiny new XPS yesterday. I am very pleased with it.
But today i began looking at tweaking and customizing it.....but i have noticed something quite disturbing.....
The phone doesnt seem to have both cores active!!!
When i check in "SystemPanel" it shows the list of 2 cores but only shows 1 as active......so i checked with "CPU Usage Monitor" and that lists the phone as only having 1 core?!?!
Is there a geek out there that can help me with this issue?
Is it me being a twot...or is there something that i dont know about?
From what i can tell the second core doesnt come on during gaming or benching.....
Im lost
Click to expand...
Click to collapse
Could you run benchmark quadrant and post your score here with a screen shot?
That app shows the same here, but linpack shows me 55mflop for single thread and 84 for milti. My quadrant is 3280
Posted with my Sony Xperia S
You wont see the second core active unless it's needed, when you're looking at the usage windows the mobile doesn't need to use the second core.
Run something like titanium backup as it's a background process at the same time as the usage monitor app.
-smc
somemadcaaant said:
You wont see the second core active unless it's needed, when you're looking at the usage windows the mobile doesn't need to use the second core.
Run something like titanium backup as it's a background process at the same time as the usage monitor app.
-smc
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Click to collapse
so the second core doesnt kick in till its needed?
7hr08ik said:
so the second core doesnt kick in till its needed?
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Yep thats why I asked you to run the benchmark tool ;-)
7hr08ik said:
so the second core doesnt kick in till its needed?
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Click to collapse
Thats what he said.
I have heard a couple of times around the forum that second core is actually underlocked heavily and doesn't kick in even if needed. Is that true?
Adellheid said:
I have heard a couple of times around the forum that second core is actually underlocked heavily and doesn't kick in even if needed. Is that true?
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Click to collapse
Nope. Where did you hear this rubbish?
2nd Core does work!!!
I had tested on 2nd Core by using Quadrant Standard...
(I installed SystemPanel Lite to check for CPU)
While the full benchmark is running, long press the home button and then open SystemPanel Lite,
I can see both cores are running fully...
This shows that the 2nd core does work!!!
Gingerbread does not fully utilize both cores. Some apps do. Honeycomb does have dual core support and ics should have proper multicore support.
it's like windows XP and windows vista/7
XP wasn't designed for dualcores but vista and 7 are.
Yeah like the other guys said, people go on about quad cores and stuff, some phones including the Xperia S aren't even using dual cores let alone quad cores unless they are running ICS, when ICS hits then we will.
Sent from my 12.5MP, DualCore, Bravia Powered 720p LED Screened Sony Xperia S
Related
Just as the question states. I know the second core will sleep when not needed but say you launch an app, does the second core help load the app? The reason I ask is because I'm curious about the raw speed difference between the atrix and inspire. Now compairing the inspire running at 1.8 and the atrix seemingly stuck at 1 per core (I'm not saying the atrix wont ever be OCed but I'm just talking about what's currently available). I'm just curious if the second core will help the first with tasks. If it doesn't would that make the inspire technically way faster (obviously battery life may be an issue but this isn't a battery compairo)?
Thanks for any insight
I think you should start by knowing that overclocking ARM prroccessors gives little yield.
XOOM at 1.5 ghz scores only 500 better than a non-overclocked xoom on quadrant.
I'm going to try and simplify the answer for you.
Will BOTH cores be used? Maybe. First off, is the app itself optimized for dual core, or does it even need dual core / multithreaded capability.
Secondly, and I think more importantly, what is the rest of the phone doing. So, let's say you fire up your favorite app, the phone is still doing stuff in the background. Maybe it's checking email. Maybe Google Latitude is checking your location and updating. The point is - the other core will still be around to offload this work.
Now, WILL it go to the other core. Maybe. Maybe not. I do work on some big Sun machines, and have seen them use one or two out of 64 cores, even with massive loads and each core being used 100%, it refused to balance the load amongst CPU's.
Hope this helps.
mister_al said:
I'm going to try and simplify the answer for you.
Will BOTH cores be used? Maybe. First off, is the app itself optimized for dual core, or does it even need dual core / multithreaded capability.
Secondly, and I think more importantly, what is the rest of the phone doing. So, let's say you fire up your favorite app, the phone is still doing stuff in the background. Maybe it's checking email. Maybe Google Latitude is checking your location and updating. The point is - the other core will still be around to offload this work.
Now, WILL it go to the other core. Maybe. Maybe not. I do work on some big Sun machines, and have seen them use one or two out of 64 cores, even with massive loads and each core being used 100%, it refused to balance the load amongst CPU's.
Hope this helps.
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Click to collapse
Yea that's exactly like I figured, I was kinda going off Windows/Intel multi core setup. Even after dual+cores have been out for quite some time 95% of programs made still don't use more than one core (Most of those remaining 5% being very CPU intense programs PS, Autocad ect.). But I get what you mean, the one core will be dedicated to what your doing and not sharing cycles with anything else because core 2 is working on whatever pops up. So basically the Atrix might be a little slower at doing things BUT it will always stay the same speed with less/no bog.
Techcruncher said:
I think you should start by knowing that overclocking ARM prroccessors gives little yield.
XOOM at 1.5 ghz scores only 500 better than a non-overclocked xoom on quadrant.
Click to expand...
Click to collapse
So you're saying Quadrant suck as it does with most phones or OCing the Xoom (and Atrix) wont really do much?
I already built an apk for testing CPU usage on both processors... When I get some free time, I'm going to turn it into a widget... Here's what I noticed:
Because of the current OS and less dual core support for apps, the phone kind of kicks certain tasks into using the 2nd processor. The APK i built reads the '/proc/stat' file and i've noticed that when the 2nd processor is being used it actually shows up in the file as 'cpu1'. However, when it's not being used the 'cpu1' line does not exist and you can default the 2nd processor usage to 0%. It seems like performing core OS tasks (like installing apps) kick the 2nd processor into use, which is what you can expect since froyo supports dual cores.
Like everyone says, I'd expect to see more dual core usage on 2.3/2.4 (whichever motorola gives) and when more apps are designed to kick certain threads onto the 2nd processor.
Hi all,
My Touchpad running Cyanogenmod-7.1.0-tenderloin-alpha3 seems to be using only 1 core. SystemPanel is only showing 1 core active. The second core never shows any activity. Did I do something wrong in the installation? Can anyone help? Thanks.
Move the page up and down really quickly, the second core will wake up.
peachpuff said:
Move the page up and down really quickly, the second core will wake up.
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Click to collapse
Thanks! I just move my fingers around the touchscreen and sure enough the second core fired up. The reason I posted was because my Galaxy S2's second core is almost always on, but at a very low level. That's why I thought my TP was only running on one core!
Another quick question - my WIFI works fine on my TP but rather slow. My fastest download is about 500kbps. My SGS2 frequently go over 1.5Mbps. Is this a known issue?
I figured I would run quadrant stand and see what I got and I got some interesting results. I got a score of 1830 which is a little bit less then what people have gotten on my phone the Samsung Galaxy Prevail which is a lowend single core 800 MHz Qualcomm MSM7627-3 plus the phone only has 384megs of ram. On top of that quarant says the device only has 1 core so Im not sure whats going on with that
I really don't care for quadrant -- at all. It provides far too divergent results on different devices of the same model/SW, it often does not use all available resources to test a device, and I find its results far too inconsistent to be worth regarding as anything other than a random grouping of numbers.
Im just wondering what other apps see the cpu as 1 core and not the dualcore it really is like quadrant does.
This section is not for discussions like this. This is more suited to the general section.
Moved to General
Montisaquadeis said:
Im just wondering what other apps see the cpu as 1 core and not the dualcore it really is like quadrant does.
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Click to collapse
The Nook Tablet usually turns off the second core in order to conserve battery power. I don't know what the conditions are wherein it will spin up the other core.
hmm could be why some apps are a bit slower then others. and why a lowend smartphone is getting better quadrant scores then this dualcore of a monster
Montisaquadeis said:
I figured I would run quadrant stand and see what I got and I got some interesting results. I got a score of 1830 which is a little bit less then what people have gotten on my phone the Samsung Galaxy Prevail which is a lowend single core 800 MHz Qualcomm MSM7627-3 plus the phone only has 384megs of ram. On top of that quarant says the device only has 1 core so Im not sure whats going on with that
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Mine got 2140. And a phone with a 800 mhz processor cant reach that unless it is rooted and overclocked. Only on CPU i got around 1500 points. So that means with custom rom the graphics can be improved and with overclock i think it will be able to reach at least around 3500. And quadrant its not so accurate either.
If you check this thread you will see a couple of people that are running CM7 have gotten 1900-2100 scores
http://androidforums.com/galaxy-prevail-all-things-root/479489-quadrant-score.html
I see the GS2 has been to 1.8 GHz and it has the same processor as ours. So is it being attempted?
Arich0908 said:
I see the GS2 has been to 1.8 GHz and it has the same processor as ours. So is it being attempted?
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Click to collapse
Read around, Faux has it up to 1.7
Sent from my HTC Amaze 4G using XDA App
Yes, there is a kernel by faux123 that goes up to 1.7GHz
Development forum.
Sent from my HTC_Amaze_4G using XDA App
1.7 is all we can get right now? I was at 1.9 with my htc g2
Sent from my HTC_Amaze_4G using XDA App
Bdix said:
1.7 is all we can get right now? I was at 1.9 with my htc g2
Sent from my HTC_Amaze_4G using XDA App
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Likewise, but that was a single core chip and for whatever reason it seemed to handle the increase in frequency wih a little more stability.
I can't really imagine what you would need a high frequency like that for on our device though, I watch mkv's with ease on this thing.
Besides it was like 8 months after the g2 the was released that kernels had that capability.
Bdix said:
1.7 is all we can get right now? I was at 1.9 with my htc g2
Sent from my HTC_Amaze_4G using XDA App
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honestly gingerbread is only optimized for one core. and At 1.5 I don't see any lag or any stutters whatsoever, Thats why I just clock my phone at 1.5 or even 1.4 sometimes...I don't understand why phones need a dual core?? its just a massive battery drainage and sell point. my old single core laptop runs windows 7 very smoothly...you're telling me we need a dual core processor on our phones to run android!!!
Waste of battery imo, if you're into gaming just get a psp, you'll get a wider selection of games, and also a much much better battery life that won't chip into your talktime
seansk said:
honestly gingerbread is only optimized for one core. and At 1.5 I don't see any lag or any stutters whatsoever, Thats why I just clock my phone at 1.5 or even 1.4 sometimes...I don't understand why phones need a dual core?? its just a massive battery drainage and sell point. my old single core laptop runs windows 7 very smoothly...you're telling me we need a dual core processor on our phones to run android!!!
Waste of battery imo, if you're into gaming just get a psp, you'll get a wider selection of games, and also a much much better battery life that won't chip into your talktime
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Click to collapse
Gingerbread may be optimized for one core but what about ICS? That's why we have it.. would you have bought the Amaze if it was single core?
And as far as over-clocking, if I'm understanding things correctly. The kernel is OC'd but isn't it only one kernel taking load a majority of the time? So it seems to me that its really like over-clocking a single core.
Sent from my HTC Amaze 4G using XDA App
Fahnix said:
Gingerbread may be optimized for one core but what about ICS? That's why we have it.. would you have bought the Amaze if it was single core?
And as far as over-clocking, if I'm understanding things correctly. The kernel is OC'd but isn't it only one kernel taking load a majority of the time? So it seems to me that its really like over-clocking a single core.
Sent from my HTC Amaze 4G using XDA App
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Click to collapse
ya overclocking a single core basically the second core is off whenever i check it. yes I understand ICS supports multicore and so does honeycomb. But do we really need multiple cores? my point was that It really is not needed, unless you're trying to play a really high def game!!!! playing high def games gives you about 2 or 3 hours max battery life, so you might as well just get a psp!!! you see my point? I overclocked my old N1 cause it was laggy, or getting laggy, and overclocking does not always mean better performance. it strains the processor and sometimes causes even more stutter!
seansk said:
honestly gingerbread is only optimized for one core. and At 1.5 I don't see any lag or any stutters whatsoever, Thats why I just clock my phone at 1.5 or even 1.4 sometimes...I don't understand why phones need a dual core?? its just a massive battery drainage and sell point. my old single core laptop runs windows 7 very smoothly...you're telling me we need a dual core processor on our phones to run android!!!
Waste of battery imo, if you're into gaming just get a psp, you'll get a wider selection of games, and also a much much better battery life that won't chip into your talktime
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Click to collapse
I thought the same until i read more about the way android uses the cores. it doesnt always use both cores at the same time like Windows would.. It uses the other core when it needs to, Google just needs more optimizing and such. but i guess thats what ICS is for
I would agree but coming from a single core phone to my amaze. What a huge difference. So I say what ever there doing keep it up.
I love a dual core. Im surfing the web on a quad core amd, and my phone is just as quick as my computer .
Here is my next question. I dont know much on how to over clock a phone . I cant imagine its anything like overclocking my PC .
Where can I read more to find out on how to because I would love to.
if used correctly dual core can give much better battery life once it is supported fully by ICS. the trick is to have both processors work simultaneously on one task for battery purposes. for multitasking it is probably not a good idea, it will probably require good kernel and governor to figure it out here:
Hi!
I'm keen to know if this is running the dual core or the quad core version of the Snapdragon 400?
I've been looking for a reliable source without any luck, so can someone here that actually owns the device verify the number of active cores?
Thank you very much!
bernard black said:
Hi!
I'm keen to know if this is running the dual core or the quad core version of the Snapdragon 400?
I've been looking for a reliable source without any luck, so can someone here that actually owns the device verify the number of active cores?
Thank you very much!
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Click to collapse
According to the internet it has 4 cores. Here is one of the sites I found: http://www.androidbeat.com/2014/07/samsung-gear-live-lg-g-watch-get-teardown-treatment/
GIYF
spiderflash said:
According to the internet it has 4 cores. Here is one of the sites I found: http://www.androidbeat.com/2014/07/samsung-gear-live-lg-g-watch-get-teardown-treatment/
GIYF
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Thanks! I guess that it definitely has four cores. It does however say:
It’s also believed that these are simply regulated to use only one core, and one core only.
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Can someone perhaps run some of the following commands and figure this out? "top -m -d 1 -n 1", "cat /proc/cpuinfo", "cat /proc/version". How many cores are actually available? It seems odd to me that all four cores should be utilized with regard to the very limited battery capacity.
Isn't it strange that they went ahead with such a "powerful" CPU/GPU combination? There are more energy efficient options out there such as the Cortex A7. It's not as powerful of course...but for a smart watch?
bernard black said:
Thanks! I guess that it definitely has four cores. It does however say:
Can someone perhaps run some of the following commands and figure this out? "top -m -d 1 -n 1", "cat /proc/cpuinfo", "cat /proc/version". How many cores are actually available? It seems odd to me that all four cores should be utilized with regard to the very limited battery capacity.
Isn't it strange that they went ahead with such a "powerful" CPU/GPU combination? There are more energy efficient options out there such as the Cortex A7. It's not as powerful of course...but for a smart watch?
Click to expand...
Click to collapse
This site features a /proc/cpuinfo. All four cores seem enabled in hardware, however, the geekbench results show it is limited to the maximum performance of one core (probably a scheduler tweak).
http://arstechnica.com/gadgets/2014/06/reviewing-android-wears-first-watches-sometimes-promising-often-frustrating/2/
bernard black said:
Isn't it strange that they went ahead with such a "powerful" CPU/GPU combination? There are more energy efficient options out there such as the Cortex A7. It's not as powerful of course...but for a smart watch?
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Click to collapse
Cool! My watch have more cores than my computer.
Well, I hope Google or the manufacturer can balance between good performance and battery life as this device replaces regular watch that have battery for half a year. I have no problem charging the watch, but It would be nice if possible to extend the battery life with one or two days extra.
Android Wear should also had an option to minimize battery drain by night. There is no reason that my watch display should be on or the bluetooth activated during night.
kartongsaft said:
Cool! My watch have more cores than my computer.
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Are you kidding me? My other computer is 7 years old and already has a quad-core processor.
spiderflash said:
Are you kidding me? My other computer is 7 years old and already has a quad-core processor.
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Click to collapse
Unfortunately no. I hope that my current computer stops working one day, so I have the reason to buy a new one.
kartongsaft said:
Unfortunately no. I hope that my current computer stops working one day, so I have the reason to buy a new one.
Click to expand...
Click to collapse
My laptop fried 2 years ago, so I built a desktop. Much more fun than buying one.
Thanks Devs, from my LG G2