You need root for this and probably need a way to disable the CPU clusters.
What is the Geekbench 3 results for the following?
Only A53 cluster with performance gov (locked 1.5 ghz)
Only A57 cluster with performance gov (locked 2.1 ghz)
You need to monitor CPU utilization in order to know that only the wanted CPU cluster is being used.
Core 1 - 4 is A53 cluster
Core 5 - 8 is A57 cluster
EDIT: when running Geekbench 3 normally, can someone check if all cores 1-8 are used by Geekbench 3 for the multicore result by monitoring utilization of all 8 cores during the benchmark. If all 8 cores are used there should be vey high % utilization on all 8 cores during some parts of the benchmark.
Thank you.
cazrack said:
You need root for this and probably need a way to disable the CPU clusters.
What is the Geekbench 3 results for the following?
Only A53 cluster with performance gov (locked 1.5 ghz)
Only A57 cluster with performance gov (locked 2.1 ghz)
You need to monitor CPU utilization in order to know that only the wanted CPU cluster is being used.
Core 1 - 4 is A53 cluster
Core 5 - 8 is A57 cluster
Thank you.
Click to expand...
Click to collapse
Why?
Short version
I'm interested in the CPU performance of both clusters separately because I manage my phone performance (Note 3) with the help of
Multicore CPU Control PRO, and SetCpu with profiles enabled on screen off/on and certain applications.
I don't find the stock settings responsive and smooth enough so I adjust them.
Related
Since installing builds 29, 30, 31 I have noticed my battery life shrinking and the xoom running warmer. Am I imagining things or are these builds overclocked upon flashing?
Nope, not by default. I'm running EOS 32 and it came set up like this:
Governor: Interactive
Minimum Frequency: 216 MHz
Maximum Frequency: 1000 MHz
Maybe you can use an app like System Tuner to undervolt your Xoom? Not sure what else could be draining your battery so fast while warming your device.
It could be my imagination and maybe I am just using the device more and giving it a workout when playing with all these EOS builds.
Thanks for the clarification.
Can someone just let me know what overclocked exactly means ?
is it helps to make mobile/tablet faster ?
CPUs have the ability to run faster than they are clocked by the manufacturer. The tablet ships with a CPU clock speed of 1 GHz. This speed is specified because the CPU manufacturer has deemed it the optimum speed (in terms of stability and possibly power consumption) for that particular CPU. By modifying the kernel, you can add the ability to change this maximum (and minimum) threshold. Theoretically, yes, if you increase the clock speed, your tablet will run faster.
The clock speed is how many cycles a CPU can do per second. So, at 1 GHz, a CPU executes ~1,000,000,000 cycles per second. By setting the maximum speed to 1.5 GHz, your CPU can now execute ~1,500,000,000 cycles per second. A CPU also has an instructions per cycle rating. So the more cycles you can execute in a second, the more instructions your CPU can process in that second.
You must keep in mind that when you increase the clock speed, you may sacrifice battery life and/or stability (higher frequency needs higher voltage). Additionally, even though we all have the same CPU in our tablets, there are small variances. I may have no stability issues running at 1.7 GHz while you may suffer boot loops running at 1.7 GHz. Furthermore, running at a higher clock speed may cause more heat and electronics don't operate very well when overheating.
Finally, the governors are used to regulate the clock speed. Just because your CPU is clocked to 1 GHz, doesn't mean it's running at that speed 100% of the time. If it's sitting idle, it may be running at ~0.250 GHz (250 MHz). Then, when you wake up the tablet and open an application, the governor realizes you need more CPU power so it increases the "maximum" until either 1) You no longer need additional power 2) You've reached the maximum threshold set by the kernel.
"The clock speed is how many executions a CPU can do per second. So, at 1 GHz, a CPU can process ~1,000,000,000 instructions per second. By setting the maximum speed to 1.5 GHz, your CPU can now execute ~1,500,000,000 instructions per second"
Not sure if I am misunderstanding your lesson. Please understand this no attempt to troll or argue, but Clock speed is a reference of the frequency of the processor. They are basically saying your processor has an operating frequency of 1 Ghz. Instructions per second is measured by IPS (instructions per second). For instance, My AMD Quad Core processor operates at 3.0 Ghz but can handle 42,820 MIPS. They are not directly proportionate.
terrymc2708 said:
"The clock speed is how many executions a CPU can do per second. So, at 1 GHz, a CPU can process ~1,000,000,000 instructions per second. By setting the maximum speed to 1.5 GHz, your CPU can now execute ~1,500,000,000 instructions per second"
Not sure if I am misunderstanding your lesson. Please understand this no attempt to troll or argue, but Clock speed is a reference of the frequency of the processor. They are basically saying your processor has an operating frequency of 1 Ghz. Instructions per second is measured by IPS (instructions per second). For instance, My AMD Quad Core processor operates at 3.0 Ghz but can handle 42,820 MIPS. They are not directly proportionate.
Click to expand...
Click to collapse
You're right and wrong
IPS is a function of clock speed so they ARE directly proportionate.
(Clock speed) X (instructions per clock) = IPS
I used "instructions" to simplify the example but you're right, I should be using another word.
Thanks for pointing that out!
Thanks skinien
I'm having motorola xoom ... planning to root it to have ICS ... any idea what will be optimal overclock speed for it .... mostly for playing games on it
nash.android said:
Thanks skinien
I'm having motorola xoom ... planning to root it to have ICS ... any idea what will be optimal overclock speed for it .... mostly for playing games on it
Click to expand...
Click to collapse
From what I've seen, a lot of people stay around 1.5. Just make sure you don't click "set on boot" immediately. Use it for a while too make sure its stable at your chosen frequency.
Sent from my ADR6400L using XDA App
On ICS, mine is super stable at 1.4Ghz. My crashes, no reboots. And I'm using the Lagfree governor, so clearly I'm not locked in at 1.4 all the time. That's just the max speed based on CPU intensive activity...
Widgets not shown in Applications
I uploaded November 6th build on my Xoom Wifi. I have the following error - clock stopped & then I did not see Widgets under apps. Please let me know how to invoke widgets.
Thanks,
Pingala
Hello guys,
Since i`ve seen so many debates about single vs dual-core, today i was bored and i tested with antutu and quadrant this thing.( I know that benchmarks isn`t a real proof in day-to-day performance )
WANT THE SCRIPTS FOR UNDERVOLTING AND FORCING CPU1 ONLINE OR OFFLINE ? See 2nd post
SO , what I actually did:
-flashed a freshly new rom ( using elegancia 3.1.0 for about 2 weeks and i found to be very stable and smooth with better battery life than any other rom i`ve tested)
-flashed latest bricked kernel min 192 mhz max 972 mhz with gpu oc @300mhz, lagfree governor, I/O deadline, both cores online via init.d script, booted and tested with antutu and quadrant and then i let the phone settle for a while to see what is the power consumption in stand-by with battery monitor widget.
-after that, i flashed bricked kernel with only max speed change to 1836 mhz, cpu1 offline via inid.d script and made those tests again
Here`s what I got:
Antutu: 4827 (both cores online, clocked @ 972 Mhz)
Quadrant: 2592
BMW: -19mA
Antutu: 4593 ( cpu1 offline, clocked @ 1.836 Ghz )
Quadrant: 3393 ( cpu1 offline, clocked @ 1.836 Ghz )
BMW: -28mA
Those numbers doesn`t reflect exactly the user experience. Some apps opened faster with 2 cores, some faster with only 1 core clecked at higher speed. The only major difference i noticed was in the browser( stock ICS browser) where the more fluid experience was with both cores on.
I`m gonna test those 2 configuration further to see which one has better battery and post some screenshots.
I will add a poll to see which configuration you think is the best.
Be aware that SoC are not created equaly, so the UV script or OC will NOT work with all devices.
Unrar the archive and choose what you want
This files needs to be copied in /system/etc/inid.d and then set the right permissions ( read: all 3 needs to be checked; write: owner checked; execute: same as read) . You need a file explorer that has access up to root ( i recommand Root exploer)
Benchmarks should always be done using Performance governor for consistency
Michealtbh said:
Benchmarks should always be done using Performance governor for consistency
Click to expand...
Click to collapse
I knew that, but i wanted a more real-life experience, and in my opinion there isn`t that much difference in lagfree vs performance. I ran benchmarks 2 times and the scores where almost identical
Please be aware that because of the instruction sets hard coded at low level into the cpu it doesn not mean that 2x 900mhz cpu cores is equal to 1x 1800mhz cpu core because of the way in which the second core is utilised. Its exactly the same with pc's hence why sometimes an AMD cpu with 2 cores can give a better real world performance benchmark than an intel cpu with 4 cores. the same applies vice versa, it just depends on what instruction sets were used and how the cpu is used. Benchmarking stuff like this is not a reliable way to test
Jonny said:
Please be aware that because of the instruction sets hard coded at low level into the cpu it doesn not mean that 2x 900mhz cpu cores is equal to 1x 1800mhz cpu core because of the way in which the second core is utilised. Its exactly the same with pc's hence why sometimes an AMD cpu with 2 cores can give a better real world performance benchmark than an intel cpu with 4 cores. the same applies vice versa, it just depends on what instruction sets were used and how the cpu is used. Benchmarking stuff like this is not a reliable way to test
Click to expand...
Click to collapse
Thanks (I'd use thanks button,but i'm limited to 8 oer day) for clarifying this for me and any other users, this post should be sticky because many members on xda think that way. I am aware that 2x900 doesn't equal 1x1800, but I didn't knew the exact explanation. The only reason that I did these tests was to see which configuration gives the best battery life. Their not equal, but acording to antutu, quadrant and end user experience they are comparable
Thanks for your time in doing these tests... It might not be reliable but it was interesting to know bout it... Im curious between the two tests though, which test puts the cpu under more stress? the first test shows awesome result on the battery so being single core might stress the cpu more, im guessing
Sent from my HTC Sensation using Tapatalk
AndroidNeophyte said:
Thanks for your time in doing these tests... It might not be reliable but it was interesting to know bout it... Im curious between the two tests though, which test puts the cpu under more stress? the first test shows awesome result on the battery so being single core might stress the cpu more, im guessing
Sent from my HTC Sensation using Tapatalk
Click to expand...
Click to collapse
33% left and it's running for15 hours with 2 cores
Hi,
I have a baili-mostlike.com/product/22.html M9701 and all over the internet and even in system info apps say that the max cpu speed is 1.2Ghz. I installed setcpu and voltage control and both have the max cpu speed to 1.2ghz but looking at the historical cpu speed state it never reach the 1.2Ghz and the max is 1008mhz.
How can I increase it?
Thanks
Does anyone know if it will eventually be possible to overclock the GPU in the Nexus 5 to match the S800 MSM8974AB chip?
The S800 chip in the Nexus 5 is the MSM8974 chip which has the GPU clock of 450MHz, but there is another version of the S800 chip called the MSM8974AB which has the GPU clocked at 550MHz.
Here is a link for anyone that is interested in seeing all the differences between the MSM8974 and the MSM8974AB
http://www.androidbeat.com/2013/09/difference-snapdragon-800-2-2ghz-2-3ghz/
It will definitely be possible with kernels. Don't know how safe it will be to overclock by 100mhz, but on my HTC One Elemental X gives the option to overclock from stock 400mhz to 550 (very bad for the device though). So the Nexus 5 will definitely be able to hit 550 as well.
Adreno 330 overclock 450MHz to 550MHz
Hello,
Is there any update about this?
I Overclocked the CPU to 2.5GHz via a custom kernel, but I am unable to pass the 450MHz of the CPU.
Please let me know if you have a solution.
Thanks
which device use MSM8974AB chip?
I have the Z1 also, which has the same chipset as the N5. There is a custom kernel for the z1 that OCs the GPU to 533mhz which I run stably with excellent battery life. So I'm sure it's possible to do the same with the N5 since it's the same processor. I'm sure one of the smart devs here can look at the github posted here: http://forum.xda-developers.com/showthread.php?t=2448613
my GOD, what did i just read
http://www.qualcomm.com/media/blog/...gies-newest-snapdragon-805-ultra-hd-processor
Adreno 420? As a heavy gamers, this thing really make me annoying -_-
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
Androguide.fr said:
I have 600MHz GPU overclock implemented in my kernel for the Xperia Z1, which uses the lower binned version of the msm8974 (the one that comes with a stock clock-speed of 2.2GHz).
We have 450/487.5/533/600 MHz scaling steps.
You can take a look at the OC commits here, it's pretty straight-forward:
https://github.com/RevolutionDev/android_kernel_sony_msm8974/commit/4136fb7713887a0561d399ecc1adc3af55d65a88
https://github.com/OmniHonami/android_kernel_sony_msm8974/commit/96dd342f1015a71e9139de8057ee16b86c6005ff
Click to expand...
Click to collapse
@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
Carter07 said:
@Androguide.fr
Is it possible to control also gpu voltage?
You got 600mhz at stock voltage?
Click to expand...
Click to collapse
It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
GUGUITOMTG4 said:
It is, but not yet implemented on the nexus 5 custom kernels.
Also mhz does not mean voltage (V) or (uVolts on this case). MHz means a frequency of 1 million times per second (used on this case for CPU, GPU, RAM speed)
Click to expand...
Click to collapse
True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
Androguide.fr said:
True, but @Carter07 is right that if the maximum allowed voltage is too low the GPU won't be able to sustain higher frequencies, as those demand more power.
The 600MHz OC is stable with the stock voltage, though, at least on the Z1 it is.
Click to expand...
Click to collapse
indeed, I misinterpreted him
You can flash Bricked kernel and use Kcontrol to force-overclock your gpu up to 650...but I wouldn't recommend anything above 550 since you will get little to no performance and it'll consume a lot more battery
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
Click to expand...
Click to collapse
There's no recognisable boost in performance apparently. And yes,battery drain will be higher if you raise voltages and you also risk damage to the core.
Sent from my Nexus 5 using Tapatalk
lol98lol98 said:
Is there a huge performance boost noticable if you oc the cpu? And what's about the battery life?
Click to expand...
Click to collapse
CPU or GPU? Some users reported less lags (OC GPU) with energy-consuming games.
I'm using stock emui on android 4.4.2. I recently rooted my phone and noticed that the cpu frequencies are really weird. First of all all cpu over/underclocking apps showed max of 1.3 Ghz and min of 1.2 Ghz. Shouldn't max be 1.7 Ghz? Even more weird was i couldn't change the frequencies to anything else. I wanted to reduce the heat that 1.2 Ghz min frequency causes and thats why I rooted in first place. I managed to get frequencies stay by using Trickster mod's freq lock. But I'm still wondering if its normal for my phone to get hot and can I set max freq to 7.8 Ghz for gaming? And no, the power saving thing aka phone manager doesn't change anything else but increase battery life when I disable it.
That's for the A7 cluster. A15 cluster goes up to 1,7 GHz.
Tup3x said:
That's for the A7 cluster. A15 cluster goes up to 1,7 GHz.
Click to expand...
Click to collapse
I just noticed in another cpu tweaking app that it showed only some of cores can go up to 1.7 Ghz and other only to 1.3 Ghz. This furthermore confirms it that only half of cores are cabable of 1.7 Ghz. http://www.devicespecifications.com/en/model-cpu/6dee2d53
Too bad this info isn't almost anywhere at all.