Like many people here and a few reviews have pointed out the nexus 5X seems to get overwhelmed by some day to day task and multitasking. So today as my phone was struggling to load a web page in chrome and stream some Sirius xm over Bluetooth I decided to try and see how heavy the load on the CPU. I fired up cpu z and according to the app it was under a heavy load and the 4 A53 cores were maxed out at 1.44ghz and the 2 A57 cores were stopped! So I rebooted figuring it must have been a bug and nope the A57 cores where still stopped. Anyone else noticing this or is it just my device?
Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.
agentdr8 said:
Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.
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the snapdragon 808 uses the bigLittle architecture.
That means there are 4 low powered cpus, and 2 high powered cpus.
Most of the time, only the 4 low powered cpus are in use.
When the phone needs more performance/power, the 2 other high powered cpus kick in.
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.
dwang said:
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.
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I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.
agentdr8 said:
I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.
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trickster mod works, I see the 2 big cpus kick in all the time, but it requires root.
So after trying a bunch of different things out looks like running a benchmark will someone's get all the course up and running but not all the time the first screen shot is with 4 cores and the 2nd is with all 6 both seem pretty low to me
Related
Does using setCPU with the Tegra 3 and it's 5th core muck up the Tegra 3's native power saving capability (ie. using the fifth core as a low energy solution for minimal activities)?
Has anyone seen tests of battery use with and without?
What I have seen from my use over the past week or so with SetCPU is that you can set the governor and the minimum clock both of which have an effect (although minimum clock is not strictly adhered to).
I don't believe the 5th core is exposed to the android OS so SetCPU shouldn't effect that at all.
I'm testing the beta and no it does not effect the max 100% of the time the tegra power management seems to kick in. I have informed mike (setcpu author) about this issue he is looking in to it.
Sent from my HTC One X using xda premium
I guess set cpu is not supported quad core yet
As James pointed out, the 5th Slave core is Transparent and not visible to Android, so it 'shouldn't' be effected by SetCpu
nibbleart said:
I guess set cpu is not supported quad core yet
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It supports quad core CPU scaling, the question is about the 5th core.
That the 5th core is invisible does make it seem like it wouldn't effect this issue, however I would like to understand a bit more about how it works to be sure.
From what I understand, when processor use is low and the CPU is scaled below 500mhz(?) then the 5th core alone is used, whereas at higher frequencies the other 4 cores are fully engaged.
I would just be worried that setting the CPU speed through methods other than whatever method HTC/nvidia had arranged for might negate this benefit. It'd be good to know from the setCPU guy what's going on, since he likely understands a lot about how CPU scaling works...
Here's my Feedback on using SetCPU with HOX:
When trying to underclock my phone
Max: 1000 Min:51
Result: rebooted within 5 minutes and then kept on doing this untill I reset the SetCpu settings to phone defaults and uninstalled
similar user experience here: http://forum.xda-developers.com/showthread.php?t=1596992&highlight=setcpu
I have seen that there is an app created for the HOX:
CoreControl: http://forum.xda-developers.com/showthread.php?t=1652136
I want to give this a go and I feel this a relevant topic to be stickied maybe under a different Topic Title ie. Custom CPU settings
Will install CoreControl and revert...
BTW: what settings have you tried using with SetCPU to underclock that doesnt result in a random reboot and that works, also what version of setCpu are you using
system tuner will allow to set the clocks for T3 properly
CoreControl is for enable/disable cores, not for overclock/underclock, I've been using it for a while, at least my HOX doesn't heat up much
Sent from my HTC One X using xda premium
Man it would be nice top have core control on the thrill
Sent from my LG-P920 using XDA
CoreControl Feedback
vegasphinx said:
CoreControl is for enable/disable cores, not for overclock/underclock, I've been using it for a while, at least my HOX doesn't heat up much
Sent from my HTC One X using xda premium
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I can now concur with @vegasphinx it doesn't heat up as much and I dont notice the difference besides the toastie popping up every so often saying CoreControl has been granted SU
can any of you give me an idea how to setup the Battery Stats within CoreControl
It crashes because there's no kernal that supports overclock/underclock.
Sent from my HTC One X using Tapatalk 2
when using micro cpu monitor pro, and other cpu monitoring apps only 2 cores are active at most.
Is this a software or kernel error?
I am using stock ROM, kernel, and everything else, besides unlocked bootloader.
Yup its normal. No quad core device is going to use all four cores at once when its not required. Only when gaming/benchmarks will it actually use them. Its just like Samsung's 8 core processor, thats rarely going to use all 8 cores for battery life reasons.
aooga said:
Yup its normal. No quad core device is going to use all four cores at once when its not required. Only when gaming/benchmarks will it actually use them. Its just like Samsung's 8 core processor, thats rarely going to use all 8 cores for battery life reasons.
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Not quite true. Samsung uses a big.little configuration so either 4 higher clocked or 4 lower clocked but never all 8.
Hello,
I recently got my Galaxy tab S 8.4 LTE with Exynos. However I have some questions. Sometimes i felt a little bit laggy. Is it normal? Also when I use CPU-Z i only see 4 cores instead of 8. -I am sure it is exynos version- Should not this device run all the cores simultaneously?
And i also would like to ask if there is a way to increase the devices overall performance.
Thanks.
jimmywentaway said:
Hello,
I recently got my Galaxy tab S 8.4 LTE with Exynos. However I have some questions. Sometimes i felt a little bit laggy. Is it normal? Also when I use CPU-Z i only see 4 cores instead of 8. -I am sure it is exynos version- Should not this device run all the cores simultaneously?
And i also would like to ask if there is a way to increase the devices overall performance.
Thanks.
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Touchwiz can be a little laggy. You can root your device and freeze or delete a lot of the bloatware. Mines very snappy. Don't experience any lag. I'm still running stock Touchwiz, I just froze all of the bloat which keeps it from starting or running in the background. Also you can flash a custom rom. There's some really good ones available at the moment. Blisspop makes a excellent rom. It would completely get rid of Touchwiz all together.
Exynos is a octacore. However in this tablet it only runs 4 cores at a time. The 1.3 ghz quad core processor runs when your not doing intensive things. So let's say like, browsing the web or watching youtube, checking your mail, etc etc. It uses those to save battery life. Now when more intensive tasks are going on it switches to the 1.9 ghz quad core processor. It's not a true octacore as it only runs 4 cores at a time. However I believe it was the note 3 that had this same processor and there was something called HMP. It allowed the processors to run all 8 cores at once. But us galaxy tab owners do not have that. I don't know if that's something that can be released for this tablet from Samsung. But as of now the device runs on 4 cores at a time and switches back and forth depending on the tasks that are being done.
^
Interestingly, I haven't had any problems with "lag" with either the stock GUI or because of the background processes.
I must say that despite using the fancy shmancy octo-core battery saving wizardry, my Tab S falls flat on its face with regards to battery savings. In can probably play HD video for 10 hours straight on a full charge, but I don't know if the device could do 5 hours of web browsing if you visit truly bloated modern web sites, like the kinja blogs. I personally suspect that video and other multimedia are run in power saving mode on the slower cores, but web browsing probably calls for the faster cores in many cases. I am thinking it would be cool of there was a way to force everything to run on the slower cores all the time. When I am out in a library or coffee shop without a charging cable, I would have accepted a slower performance in exchange for a long battery life.
Understood. However i am not sure if things go like that. I mean I open CPU-Z and monitor cpu usage. It is not even stable it goes up to 1600 mhz sometimes even though i just monitor it. I wonder if there is a way to monitor my CPU usage with a background APP so i can see if it is overloaded even with simple tasks such as facebook.
Akopps said:
^
Interestingly, I haven't had any problems with "lag" with either the stock GUI or because of the background processes.
I must say that despite using the fancy shmancy octo-core battery saving wizardry, my Tab S falls flat on its face with regards to battery savings. In can probably play HD video for 10 hours straight on a full charge, but I don't know if the device could do 5 hours of web browsing if you visit truly bloated modern web sites, like the kinja blogs. I personally suspect that video and other multimedia are run in power saving mode on the slower cores, but web browsing probably calls for the faster cores in many cases. I am thinking it would be cool of there was a way to force everything to run on the slower cores all the time. When I am out in a library or coffee shop without a charging cable, I would have accepted a slower performance in exchange for a long battery life.
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If you're rooted you can use an app such as setcpu to modify cpu settings.
If all it does is switch between 2 quad core chips that has to be the dumbest thing I've heard of. What's the point if it can just step the fast one down in frequency and voltage?
jawz101 said:
If all it does is switch between 2 quad core chips that has to be the dumbest thing I've heard of. What's the point if it can just step the fast one down in frequency and voltage?
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Supposedly more efficient with current technology at time of release.
The new 5433 (such as my Note Edge) has true HMP Octa-core processor. So SWEET
Download CPU Spy and see if it list anything above 1.44ghz, I wonder if this phone is really going into 1.8ghz at max
LancerV said:
Download CPU Spy and see if it list anything above 1.44ghz, I wonder if this phone is really going into 1.8ghz at max
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Mine was.
same here, no core goes over 1440mhz
hmmm, but otherwiese thos pjone outperformes any other phone ....
The app maybe reporting the speed of the 4 lower power cores, and not the 2 higher power cores. My guess anyway.
hmm like cpu-z it has max speed of 1440, i don't know about the detection for the speed of the 2 high power cores
I just had a play around with cpuz. For a brief moment I saw core 5 and 6 jump up to 1884. It looks like they remain idle until the other 4 need some assistance.
But yes, I've seen them get to 1.8ghz.
Sent from my LG-H815 using Forum Runner
For anyone using a Kernel tuner that can register big/little activity.... does ANYONE see the big ever being ramped at all? mine shows deep sleep for about 99% of the time I use my phone and its kinda pissing me off because the phone does lag at times, and if the big cpu were to ramp up, I'd assume the lag would be gone. whats also weird is my current uptime is 26 hours, and while my "little" set shows that as the uptime, my big only shows 7 hours.
T-Mo, stock, rooted...
I've been wondering this for a while. Lots of lag issues and missed taps (for me) seem as if processor scheduling isn't being handled efficiently.
Sent from my LGLS991 using Tapatalk
daddymikey1975 said:
I've been wondering this for a while. Lots of lag issues and missed taps (for me) seem as if processor scheduling isn't being handled efficiently.
Sent from my LGLS991 using Tapatalk
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FWIW it hasnt mattered what gov I've used... ondemand, interactive (which was the stock setting) both of these, no big core being used at all
chrisokaly, what are you using to monitor this? I'm using CPU Spy 0.4.0, and it has never made a reference to 1.8GHz. The highest it ever shows is 1440MHz.
But using CPU-Z (which only shows live data, while you're looking at it, not history), that does at least acknowledge the 1.82GHz cores. I'm not sure if I've seen them hit 1.8, but I don't look at CPU-Z often.
Mine is Verizon, VS986, not rooted.
and now that I'm playing with this a bit more... the "frequency table" in Kernel adiutor for the big core seems to reset itself every time the screen goes off...
RedOCtobyr said:
chrisokaly, what are you using to monitor this? I'm using CPU Spy 0.4.0, and it has never made a reference to 1.8GHz. The highest it ever shows is 1440MHz.
But using CPU-Z (which only shows live data, while you're looking at it, not history), that does at least acknowledge the 1.82GHz cores. I'm not sure if I've seen them hit 1.8, but I don't look at CPU-Z often.
Mine is Verizon, VS986, not rooted.
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Kernel adiutor
ye i opened similar thread about this, big cores rarely used if any, i think the Kernel have some issues that needed to be fixed, we need to make sure LG aware of that.
Wrong thread, sorry
chrisokaly said:
Kernel adiutor
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I use Kernel adiuter and have the big cpu's set in interactive and the small ones set on on demand. The big cores ramp up when needed and I rarely experience any lag.