Ok My SGS2 is a month old now.. Initially I had Galaxy ACE so was knowing ROOTING and custom ROMs stuff.. Now today morning got a doubt is the second core working(Probably disabled!) because it got heat in AC room! And so installed a System Tuner Pro app and got to know the second CPU was OFFLINE!!! I thought may be not much load so loaded around 6 apps and started 7th no lag but still second core OFFLINE... Can anyone clarify my doubt... Else my second CPU got screwed up
Prashanthme said:
Ok My SGS2 is a month old now.. Initially I had Galaxy ACE so was knowing ROOTING and custom ROMs stuff.. Now today morning got a doubt is the second core working(Probably disabled!) because it got heat in AC room! And so installed a System Tuner Pro app and got to know the second CPU was OFFLINE!!! I thought may be not much load so loaded around 6 apps and started 7th no lag but still second core OFFLINE... Can anyone clarify my doubt... Else my second CPU got screwed up
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it gets activated only when required else it will be offline
if u have siyah kernel installed along with Extweaks u can check the same under CPU tab
under Hotplug mode u have the options
1)Cpu Hotplug (default) - thats the second core switchs on/off dynamically
2)second core always on- will turn on second core always
3)second core always off- will turn off second core always
Sun90 said:
it gets activated only when required else it will be offline
if u have siyah kernel installed along with Extweaks u can check the same under CPU tab
under Hotplug mode u have the options
1)Cpu Hotplug (default) - thats the second core switchs on/off dynamically
2)second core always on- will turn on second core always
3)second core always off- will turn off second core always
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Click to collapse
Good to see ur from Mysore .. How do i know second core is still alive !!
Prashanthme said:
Good to see ur from Mysore .. How do i know second core is still alive !!
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u can check the link below to understand more about the same
http://forum.xda-developers.com/showthread.php?t=1572937
Sun90 said:
u can check the link below to understand more about the same
http://forum.xda-developers.com/showthread.php?t=1572937
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Thanks button click madide.. Dude ok i got to know that Hotplug... But now how to know second core s working or not... because in stock it was working ok sometimes it used to come as green in system tuner app.. Now even after heavy use it aint
Related
Ok so im rooted and overclocked and was using setcpu then decided i wanna try something different so i tried system tuner! When i checked the cpu it said that one of the processors are off line! Then i pressed the info button and sure enough it says only reading one! So i went through the settings and found force both cores online!
Since then i have no lag and virtually no checkerboarding on the web! Anyway i was just wondering if im the only one who noticed this and maybe it could help those who say that they are still getting lag on they're roms using dag's kernel!
Also i hope devs will notice this thread since i can't post there yet and take advantage of this how ever they can!
Now don't quote me on this but most likely the second core only turns on for processor intensive activities such as high graphics games or multiple programs running at once. I do find it hard to believe that it would be totally disabled. Most likely this is done to conserve battery.
blitzer320 said:
Now don't quote me on this but most likely the second core only turns on for processor intensive activities such as high graphics games or multiple programs running at once. I do find it hard to believe that it would be totally disabled. Most likely this is done to conserve battery.
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Nope i checked that i had 10 apps open two were games (dead space and gta III) One cpu online even on performance! I see 50 views i hope others chime in and let us know what you are thinking
Btw they Did this i heard to the galaxy nexus with the tiomap 1.2 so we'll see what others find
truth77 said:
Nope i checked that i had 10 apps open two were games (dead space and gta III) One cpu online even on performance! I see 50 views i hope others chime in and let us know what you are thinking
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Okay if this really is the case I could also see at&t disabling the second core totally to save battery because of lte but i guess it will take a dev that has more experience with how qualcomm's multicore cpus work in android. report back with differences in battery life like how much faster does it drain now that both cores are forced on.
if you want both cores on click on boot settings and enable force all cpus online. that heats up your phone and eats more battery though+I do not see any benefits doing that.
blitzer320 said:
Okay if this really is the case I could also see at&t disabling the second core totally to save battery because of lte but i guess it will take a dev that has more experience with how qualcomm's multicore cpus work in android. report back with differences in battery life like how much faster does it drain now that both cores are forced on.
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I've had it like this for 4 days on average i will take of the charger at 8am now is 8:30pm and i have 27% but i use my navigation for my Job! By 10:30 or so ill have 15% and recharge!
Settings
1836 max
192 min
Governer
Smartassv2
Both cores pushing
Screen off
192 max
In call
384 max
Tomorrow ill post some pics of battery life usage!
And my phone doesn't get any hotter than normal not even while using my navi! Mostly it just gives no lag and better rendering in the browser/maps/etc!!
I was under the impression that Gingerbread didn't fully utilize multiple cores. Need HC or ICS...
Broken said:
I was under the impression that Gingerbread didn't fully utilize multiple cores. Need HC or ICS...
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Same, but having a better processor helps. Like exynos. I bet once we update to ics if it ever happens, the differences will be only minor between processors, as it runs so nice.
Got system tuner pro, and it shows speed bars on both cpus running? I didn't change a thing?
canecbr600 said:
Got system tuner pro, and it shows speed bars on both cpus running? I didn't change a thing?
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Really? I switched Roms twice today and had to reset that each time! Cpu.0 online Cpu.1 offline! Like i said am i the only one? Lets hear from more people and let us know of any lag or rendering changes after turning on both cpu's! Battery too, i'll post mine tomorrow.
I thought I'd play and I have CPU0 running and CPU1 running.
truth77 said:
Btw they Did this i heard to the galaxy nexus with the tiomap 1.2 so we'll see what others find
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Not entirely true.. the Galaxy Nexus has a kernel governor that turns one core off when the SCREEN IS OFF, but not when the phone is being used. Multiple kernel creators have since implemented this into their kernels. It is called "hot plugging" and it just turns CPU 1 offline when the screen is off and turns it back on when the screen is on
Sent from my DROID3 using xda premium
Just checked mine, rooted and OC with DaG's 0.1 version (first version). When I looked, it said the second CPU was offline. Changed it to online, we'll see how that impacts battery life.
How much of an advantage is smartassv2 anyway?
I just tried this with system tuner and both cpus were working but wone was of and on and zero was always on.
I am running stock rooted. If you just sit yhere and watch it you will see tje sevond core fires and shuts down alot.
truth77 said:
Really? I switched Roms twice today and had to reset that each time! Cpu.0 online Cpu.1 offline! Like i said am i the only one? Lets hear from more people and let us know of any lag or rendering changes after turning on both cpu's! Battery too, i'll post mine tomorrow.
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Same for me (CPU 0 on, CPU1 off, most times) and I'll say I have noticed no real changes in functionality (speed, rendering, etc) or battery life...
I guess jury is still out or is this a YMMV kind of thing?
I installed system runner and watched the cpus. One was on and the other kicked in periodically
Mine said it was offline as well. Forced it on and am not noticing any difference in speed or temp.
Ill leave it like this to test it further.
Sent from my SAMSUNG-SGH-I717 using Tapatalk
Do you have to be rooted to force both cores on?
Sent from my SAMSUNG-SGH-I717 using xda premium
g2theno said:
Do you have to be rooted to force both cores on?
Sent from my SAMSUNG-SGH-I717 using xda premium
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As far as I know yes you must have super user permission to alter such system activities
I don't know why everyone is in such a rush to force the second core online, it turns on and off when it needs to.
So I installed system tuner from playstore and I'm looking at both cpu's and I noticed CPU 0 is running 100% of the time and CPU 1 is offline 99% of the time? I have this app on my galaxy nexus and CPU 0 and 1 would be online 100% of the time, so any of u guys wanna download that app and post ur results?? Or dose someone out there that nos more about the chips in this phone care to " school " me? ///my phone is rooted
drawde40599 said:
So I installed system tuner from playstore and I'm looking at both cpu's and I noticed CPU 0 is running 100% of the time and CPU 1 is offline 99% of the time? I have this app on my galaxy nexus and CPU 0 and 1 would be online 100% of the time, so any of u guys wanna download that app and post ur results?? Or dose someone out there that nos more about the chips in this phone care to " school " me? ///my phone is rooted
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I see there is over 100 views, no1 Nos how these chips work and if this is normal?
drawde40599 said:
I see there is over 100 views, no1 Nos how these chips work and if this is normal?
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It's the way that all dual core phones work to save battery. When using the phone heavily, both should kick on. While not doing anything or not processor heavy, just one core would run.
SGS3 awaiting some dev love
Artimus009 said:
It's the way that all dual core phones work to save battery. When using the phone heavily, both should kick on. While not doing anything or not processor heavy, just one core would run.
SGS3 awaiting some dev love
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Correct.
CPU1 is rarely ever used. This is to conserve battery. It gets turned on/used only when there is a demand for extra processing power.
But some custom ROM/kernel combo's will change it so that CPU1 is used 100% of the time. I'd guess you had a custom kernel on your Nexus?
CZ Eddie said:
Correct.
CPU1 is rarely ever used. This is to conserve battery. It gets turned on/used only when there is a demand for extra processing power.
But some custom ROM/kernel combo's will change it so that CPU1 is used 100% of the time. I'd guess you had a custom kernel on your Nexus?
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Thank u guys, This is what I figured, but I've never had stock rom and kernel on any of my other dual core phones this is longest I've ever had stock rom and kernel (4 days ; p) and had no idea CPU 1 is never really used cause yes most kernels take advantage of both, I turned on CPU 1 with the app but I don't think its working right, phone seems faster but I need run some tests ....thanks agn
Hi guys,I have a question.how can I set my phone to dual core,so I can save my battery life? I'm on omega Aokp v4.2 and Syiah kernel.
I've tried to set it on Stweaks but when I get back in there it stays quad core by default..what I am doing wrong since I'm a noob?
Sent from something better than my pc
You missed section named "Galaxy S III Q&A", right? You must have.
Do you press Apply after you make a change in STweaks ?
BTW, it won't affect your battery life THAT much. Pegasusq knows how to manage the cores pretty good.
Actually Siyah Kernel doesn't work well with Stweaks at this moment. It's written on Siyah's website that most feature on Stweaks doesn't work.
So which would be the kernel that work with Stweaks? And yes, I've hit the button that says apply
Sent from something better than my pc
bcuraman said:
So which would be the kernel that work with Stweaks? And yes, I've hit the button that says apply
Sent from something better than my pc
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I don't think any kernel works because Stweaks is Siyah's software. Since the new 4.1.2 lots of apps (kitchen) in many ROM doesn't work.
can you provide any link or article clearly confirming that dual core saves battery? i've read somewhere that it has a negative effect because the phone takes longer time to get to deep sleep
im not 100 % sure though, just learning
Hey just my two cents but on stock ROMs with stock kernel using the power save toggle really saves in the battery department.
Also I don't know what everyone is doing with their phones but my battery is great compared to previous phones, iPhone, one x, g2x etc....
sent from a galaxy far away
I don't have that for sure,that dual core saves battery,but in the stock rom,when you activate the power saving mode,it disables some cores or some features of it..so that's from where i get my thoughts... Besides that,I'm using a Aokp rom and despite the fact that it's blazing fast,it's an awesome experience.but the (dis)advantage of taking the most out of the phone,doesn't give us enough profit of the battery.. What would you suggest so I could keep the Aokp and have the most of the battery?
Sent from something better than my pc
I have a problem with my m4 Aqua. All my cpu cores Are active when screen is on. I am using on demand cpu governor. Even with the other cpu governors the problem is still there. I have this problem with 3 different stock firmwares.
Is there anyone Who dont have this problem?
I think that's the way SD 615 works because I have the same problem
Dude... That's exactly what should be happening lol. It's not a problem - it's normal in every phone. You can manually deactivate some of them if it pleases you.
AndyPhoenix9879 said:
Dude... That's exactly what should be happening lol. It's not a problem - it's normal in every phone. You can manually deactivate some of them if it pleases you.
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Thanks for your answers but i disagree. On my Z1 Compact, it only activates the other cores when i touch the screen, or when it needs the extra juice. Not only because it's on. This results in a huge battery waste wich i don't have on my z1c.
AndyPhoenix9879 said:
Dude... That's exactly what should be happening lol. It's not a problem - it's normal in every phone. You can manually deactivate some of them if it pleases you.
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Not true, most of the processors have just only one core activated when you are doing nothing and it turns on more cores when it needs them. This is the first processor I've seen that almost has all the cores turned on all the time.
i think sony disabled for some reason mpdecision hotplug
Ahh my bad. Thanks for correcting guys! How did you guys check for it though?
sergioslk said:
i think sony disabled for some reason mpdecision hotplug
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Is it possible to change that without making a custom kernel?
Sadly, no, i tried to turn mpdecision on using terminal emulator and nothing happened, maybe sony ripped this function at all in kernel
But if you need to save battery and still have a good system response i recommend to set the 4 big cores to powersave governor and let the small cores in interactive, you can set like this using kernel adiutor (is totally compatible with big.LITTLE arch and can manage individually the smalls and big cores)
hi everyone,i flashed last build of lineage 14.1 on my redmi kate,everything went fine but after that i run a bench with antutu and cpux,they show cores 5 and 6 sleeping,don't know how to make then work,is it normal or maybe am i making a dumb question? thx in advance
Have you flashed/tempered with any kernels or kernel audiutor?
jimakos98 said:
Have you flashed/tempered with any kernels or kernel audiutor?
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no,i dont made any changes,only flashed lineage,no mods
kleytonhunter said:
no,i dont made any changes,only flashed lineage,no mods
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It's probably normal then. I am also using the same rom and core 5/core 6 are shown running at 0.0 KHz. Basically, the system automatically manages the state of those cores depending on cpu usage in order to save battery life.
Last two cores are the big cluster(high performance) cores which come online under more loads due to hot-plugging.
Try loading a video or a game and see whether these cores come online.