First of all sorry if I posted in the wrong place please someone guide me to where it is supposed to be if i did post in the wrong place, so I have an I9500 running CM13, I downloaded kernal auditor from the Google play store and noticed that I only have the option of editing 4 cores and they all have a Max limit of 1600MHz so I'm assuming those are the A15 set of cores,, so my question is pretty simple, does my current rom make use of both the A7 and A15 clusters (I am aware that they never run simultaneously) I'll include pictures about details on my rom, thanks in advance
Well the screenshot refuses to be uploaded so:
CyanogenMod version: 13.0-20160828-unofficial-gearCM-i9500
Kernal version: 3.4.5-cyanogenmod-gd795889
[email protected] #1
Sun Aug 28 22:30:39 CEST 2016
Build number: cm_I9500-userdebug 6.0.1 MOB30Z
2c597c319e
Test-keys
It could also be that Kernel Adiutor can't access the A7 cores.
big.LITTLE mechanism on i9500 is a little bit unique, because frequency tables are merged.
800 (700 if underclocked) until 1600 (up to 2000 if overclocked) for A15 core, while 250 (as low as 100 if underclocked) until 600 (about 650-750 if overclocked) for A7 core.
If frequency bumps to 800 MHz or higher, A15 core is used, besides that A7 core is used.
Hope this could understand you.
Sent from my ASUS_Z00A using XDA Labs
krasCGQ said:
big.LITTLE mechanism on i9500 is a little bit unique, because frequency tables are merged.
800 (700 if underclocked) until 1600 (up to 2000 if overclocked) for A15 core, while 250 (as low as 100 if underclocked) until 600 (about 650-750 if overclocked) for A7 core.
If frequency bumps to 800 MHz or higher, A15 core is used, besides that A7 core is used.
Hope this could understand you.
Sent from my ASUS_Z00A using XDA Labs
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Click to collapse
yup just like kras said so if it shows lower than 800 then it shows the little cores, for example, 600mhz in kernel adiutor is actually 1200mhz a7 freq, 500mhz is 1000mhz a7 and so on
krasCGQ said:
big.LITTLE mechanism on i9500 is a little bit unique, because frequency tables are merged.
800 (700 if underclocked) until 1600 (up to 2000 if overclocked) for A15 core, while 250 (as low as 100 if underclocked) until 600 (about 650-750 if overclocked) for A7 core.
If frequency bumps to 800 MHz or higher, A15 core is used, besides that A7 core is used.
Hope this could understand you.
Click to expand...
Click to collapse
So the A15 cores would never run below 800 (or 700 if under clocked)?
jwchen17 said:
yup just like kras said so if it shows lower than 800 then it shows the little cores, for example, 600mhz in kernel adiutor is actually 1200mhz a7 freq, 500mhz is 1000mhz a7 and so on
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Click to collapse
I see so 200MHz on kernal auditor would actually be 400MHz A7 etc. That poses another question, I understand that the A15 cores CAN on stock image run at below 800MHz, or is that incorrect
The mad charizard99 said:
So the A15 cores would never run below 800 (or 700 if under clocked)?
Click to expand...
Click to collapse
Yes, that's how the CPU works.
The mad charizard99 said:
I see so 200MHz on kernal auditor would actually be 400MHz A7 etc. That poses another question, I understand that the A15 cores CAN on stock image run at below 800MHz, or is that incorrect
Click to expand...
Click to collapse
No. Below 800 MHz it would switch to A7 core respectively.
Sent from my ASUS_Z00A using XDA Labs
Related
Aparently the CPU may only be clocked to 800Mhz........
If you got this from the Au website, Whirlpool, than I think they are talking about the iPhone 4, not the Galaxy S
well it's from the galaxy s thread and one of the guy who's doing the testing and stuff for samsung says this......definitely not iphone.
Guess just wait and see when it's released I suppose
huh? wat are you guys talking about? its 1ghz cpu
forums.whirlpool.net.au/forum-replies.cfm?t=1409745&p=58#r1152 is the link to the post where the user suggests it is 800mhz underclocked.
Yh, sorry, was reading a thread where they were talking about the iPhone being underclocked, just reading more, it seems it may be the case.
Will mean battery last longer, not such a bad thing, as long as it doesn't effect any of the performance of the phone
If they say 1Ghz then it is 1Ghz or else they're going to have a lawsuit on their hands. Nothing in between(except of course scaling).
I have the galaxy s and im pretty sure its 1ghz.. at least system panel tells me its 1ghz but singapore set are all 16gb model.
information from system panel:
ARMv7 Processor rev 2 (v7I)
bogomips 797.90 (may vary)
min clock 100mhz
max clock 1000mhz
on Nexus one using pershoot kernel but cpuset at 245mhz - 998mhz, it shows:
ARMv7 processor rev 2 (v7I)
bogomips 662.40 (may vary)
min clock 245 mhz
max clock 998mhz
so maybe the 8gb are down clocked?
Doubt the 8Gb version would be clocked lower. Thanks for posting your findings!
It's just the power of forums and the internet, allowing mis-information to spread at the speed of light
lol yep, looks like he was confused at the sliding clock speed....
when i ran quandrant standard it read armv7 processor rev 2 , max 1000 min 100
set frequency 800
is that normal
regards
It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.
Intratech said:
It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.
Click to expand...
Click to collapse
thanks for clearing this up
regards
Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?
Pika007 said:
Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?
Click to expand...
Click to collapse
I don't have a link to that claim, but I think it was Gizmodo in their testing of the iPhone 4 and iPad noted the iPad did feel faster and the web browser rendered pages faster, despite both using the A4 processor. They hypothesised that it is the same architecture CPU in both, but different clock speeds.
After all, to get 10 hours out of the iPad the teardowns and x-ray scans show about 80% of the volume inside is all battery. If the iPhone 4 and iPad had the same processor, you'd think the iPhone's battery would be pretty bad considering the far smaller volume (although smaller screen not sucking as much power).
Wouldn't be surprising. After all, the Motorola Milestone / Droid has a mild underclock, as does the Acer Liquid to preserve battery life.
Probably cheaper for Apple to only have to manufacture 1 chip (the A4), but clock at different speeds appropriate to each device's battery life.
Apple doesn't focus as much on specs though, more that the user interface feels fast and smooth. If it achieves that purpose no need to worry about numbers, whereas since we have so much choice of handsets on Android specs do make a difference for us to know depending on our needs (eg: price vs performance vs battery).
My Samsung Galaxy S is running at 800mhz it sucks... i flashed it last night with the final build of 2.2 I9000XXjP6 for the Galaxy does anybody no how i can overclock it to 1ghz thanks People
The Galaxy S has a 1 GHz CPU. However, the clock speed is lowered while not needed to save battery life, just like on any modern PC. By default it is using the conservative governor.
The iPhone4 never was supposed to get a 1 GHz CPU. Apple never disclosed the number. But those who made benchmarks estimated the clock speed at about 800 MHz since is is about 20% slower than the iPad.
There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that
AllGamer said:
There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that
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Click to collapse
He might have got mixed up, but the final 2.2 build for the Samsung Galaxy S is maxed out at 800 MHz for some stupid reason…. I’m going to flash it tonight again with a earlier build of 2.2 as I did some bench test and its only scoring a measly 900 points with the latest firmware installed.. Were as before it was scoring well over 2k…
I'm wondering, was the GPU clock dropped from initially stated 533MHz?
Sorry, i'm asking about S4, not S3.
GPU [email protected]
Source: http://en.wikipedia.org/wiki/Exynos
demlasjr said:
GPU [email protected]
Source: http://en.wikipedia.org/wiki/Exynos
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Click to collapse
Holy ****, meant to ask about S4.
Hahahaha....you asked...I answered...LOL
- PowerVR SGX 544MP3 GPU; 3-core, 533Mhz
- Adreno 320; 4-core, 450Mhz
Now, hope that you won't tell that you were talking about Nexus 4 LMAO
So, while A15 cores were slowed down a bit from initial specs, GPU runs the same frequency as announced. Thank you
Phobos Exp-Nord said:
So, while A15 cores were slowed down a bit from initial specs, GPU runs the same frequency as announced. Thank you
Click to expand...
Click to collapse
No, A15 were not slowed down. It was rumored and even released with the max frequency at 1,6 GHz, while in Korea will be clocked at 1,8GHz.
How many type of note 3 cpu and gpu
Which one is gud for performance and battery
Quad core 2.3 or 1.9 or 1.3 as I saw on gsmarena
What about gpu as well
What to choose
Note 3 will have snapdragon 800 cpu @ 2.3 ghz. Some will have the Exynos octa core @ 1.9. I will get the Sprint version so it's snapdragon for me
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nabilsweet007 said:
How many type of note 3 cpu and gpu
Which one is gud for performance and battery
Quad core 2.3 or 1.9 or 1.3 as I saw on gsmarena
What about gpu as well
What to choose
Click to expand...
Click to collapse
As the person stated above N3 will come in two processors:
1. Slapdragon 800 @ 2.3 GHz (4 Krait cores- QUAD CORE) with Adreno 330 which can shoot 4k Videos @ 30 FPS.
2. Exynos 5420 with 8 cores- 4 A15 @ 1.9 GHz and 4 A7 @ 1.3 GHz. It will have Mali T628 MP6 GPU. However it wont shoot videos at 4k resolution.
Both of the GPUs will have OpenGL ES 3.0.
These stuffs can, you know, be obtained from top notch tech sites like gsmarena etc and with a quite bit of research hypothetically be answered.
But to answer your last question- it is too early to tell.
1. Lets see how the real world users say about daily usage in terms of Slapdragon 800 and Exynos.
2. Lets see how GSMArena turns out regarding battery endurance.
awesome smartphone
it will be interesting what the snapdragon will do. However its the highest end 800 not the regular 800 so optimalizing will be limited unless that one becomes mainstream. Tricky.
Sent from my GT-N7000 using Tapatalk 2
Anyone knows why all apps i downloaded (cpu-z, monitor cpu, setcpu) only show max mhz at 1300?
i have a sm-g900h with arm15 cortex r2p3 , i understand that is an octa core with 4 cores at 2.1 ghz and 4 at 1.5
It is a phone problem or all these app don´t support the system?
mrrombys said:
Anyone knows why all apps i downloaded (cpu-z, monitor cpu, setcpu) only show max mhz at 1300?
i have a sm-g900h with arm15 cortex r2p3 , i understand that is an octa core with 4 cores at 2.1 ghz and 4 at 1.5
It is a phone problem or all these app don´t support the system?
Click to expand...
Click to collapse
It's likely most app do no "fully" support this new octa-core. I would suspect they only show the little CPU 4 cores @ 1.5GHz, however seeing 1.3GHz as the max is weird. In S4 octa-core, the max frequencies was used by both CPUs and frequencies below 600Mhz where meant to be used by little core (600Mhz being 1.2GHz on the little CPU, 700Mhz being exactly that on the big CPU), so there might be some similar tricks on the new S5. This would mean the kernel would only show 4 cores at any point in time.
Have you tried Android Tuner, it can adapt to any number of cores automatically (a little down arrow allows to switch to multi-core control) ? If you try it, can you post a screenshot here? I intend to buy the Galaxy S5 with 8 cores for testing purposes, so I'd be interested by first-hand screenshots, if any. You can check and post screenshots of the main CPU tab and also the Times tab which will show available cores timings for each frequencies.
Hi all,
The Snapdragon 625 is one of the best mid range processors. It is powerful and very power efficient. I can get at least 5 hours of sot. In cpu z only all 8 cores can be used at the same time and they all have the same frequency (generally 652, 2016 or 1401 MHz). Does anyone know the clock speed of the two quad cores that make the Snapdragon 625
DarthMaul14 said:
Hi all,
The Snapdragon 625 is one of the best mid range processors. It is powerful and very power efficient. I can get at least 5 hours of sot. In cpu z only all 8 cores can be used at the same time and they all have the same frequency (generally 652, 2016 or 1401 MHz). Does anyone know the clock speed of the two quad cores that make the Snapdragon 625
Click to expand...
Click to collapse
The Snapdragon 625 is not a littleBIG architecture processor, all cores are the same, it is a true 8 core processor, not 2 quad core processors.
Ok thanks! So can each core can't go at their own frequency and all 8 cores must work at the same time.
DarthMaul14 said:
Ok thanks! So can each core can't go at their own frequency and all 8 cores must work at the same time.
Click to expand...
Click to collapse
No, hey can throttle independent of each other, my guess is the default governor of the kernel does it that way because there is no real power savings.
True. I have a feeling that if the kernel allowed each core to run when it was needed and stopped when it isn't it would have been more power efficient.
DarthMaul14 said:
True. I have a feeling that if the kernel allowed each core to run when it was needed and stopped when it isn't it would have been more power efficient.
Click to expand...
Click to collapse
Maybe... But the SD625 is pretty efficient as it is, plus there is a lot of issues with programs that report core usage on Nougat, it might actually be doing that but reporting incorrectly.
True. I tried 3 apps similar to cpu z and I got the same 3 frequencies and all the cores were being used. Do you think the Oreo update might fix that issue.
DarthMaul14 said:
True. I tried 3 apps similar to cpu z and I got the same 3 frequencies and all the cores were being used. Do you think the Oreo update might fix that issue.
Click to expand...
Click to collapse
No idea... My guess is no, most of this is due to changes in Android permissions, but honestly it works, it's quick and lag-free and great on battery, so I don't care about the details.
True