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Hi guys
I downloaded the quadrant standard application on my Captivate. Looking into the system info i observed the following
1. CPU : samsung cortex v7. I thght the processor was a v8? I dunno whether the processor info is right.
2. The processor speed is displayes as "800 MHz"
Max freq ; 1000 MHz
MIN freq : 800 MHz
Whatz going on here?
Can someone explain this?
Please run the benchmark and lef me know!
Sent from my SAMSUNG-SGH-I897 using XDA App
carporsche said:
Hi guys
I downloaded the quadrant standard application on my Captivate. Looking into the system info i observed the following
1. CPU : samsung cortex v7. I thght the processor was a v8? I dunno whether the processor info is right.
2. The processor speed is displayes as "800 MHz"
Max freq ; 1000 MHz
MIN freq : 800 MHz
Whatz going on here?
Can someone explain this?
Please run the benchmark and lef me know!
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
the 800mhz I would assume means it is throttled down.
My results...
Name: ARMv7 Processor rev 2 (v71)
Current freq: 800 MHz
Max req: 1000MHz
Min freq: 100 MHz
-JChao
Just ran the benchmark and got the same thing. Please don't tell me this thing is underclocked. if so is there a program out there that will bring it up to speed?
The processor is a Samsung S5PC110 Cortex-A8 and uses the ARM v7 instruction set. It's not a version 8.
there is an APp to change your CPU clock. Don't do it though, nothing on android requires those extra 200 MHz yet. If your thinking about UI Lag, this is a software issue and not a consequence of the throttled cpu. Hang tight for a fix from developers.
With the software fix and throttled down cpu, this phone is still faster than the newest phones running 2.2 (Froyo)
SetCPU will let you force the frequency. But you shouldn't need to use it, 800MHz just seems to be the Hummingbird's idle frequency. The CPU probably just idled while the graphical benchmarks were being run.
CPU in phones never runs at 100% at all times that would kill battery , you can force it if you root your phone but that is counter productive , as it goes from anywhere from 1% to 100% of its speed when it needs to , during intensive usage or benchmarking it will reach 1000mhz , but if all you do is read text it will conserve battery.
Its obvious from this info below
Current freq: 800 MHz
Max req: 1000MHz
Min freq: 100 MHz
Yes, the Cortex A8 is an ARM7 processor. The older CPU's used were ARM11 processors.
Thankx for the info guys..
I checked again and for some reason i got confused with the processor and was writing the post from memory (my memory ). it says ARMv7 Processor rev 2 (v71).
And yes i do think the 800 MHZ is pretty fast.
I just need to get rid of the samsung UI and switch to stock android.
-------------
itzz(AN)dRoiD
The spec sheet lists 1 GHz, and spec sheets show the operating frequency so I would assume that the CPU can run at different speeds for different workloads. Try running a couple heavy applications in the background and check it again. If all is well in the world it should clock upto 1 GHz.
carporsche said:
Thankx for the info guys..
I checked again and for some reason i got confused with the processor and was writing the post from memory (my memory ). it says ARMv7 Processor rev 2 (v71).
And yes i do think the 800 MHZ is pretty fast.
I just need to get rid of the samsung UI and switch to stock android.
-------------
itzz(AN)dRoiD
Click to expand...
Click to collapse
The processor is NOT 800mhz it's just throttled down to 800mhz cause of not needing the full 1ghz speed. That saves power and battery life gets extended. Laptops and desktops do the same thing.
so in other words it basically adjusts oh and also maybe the ARMv7 infrastructure is better then the 11 one
yes i do get the idea
tbae2 said:
The processor is NOT 800mhz it's just throttled down to 800mhz cause of not needing the full 1ghz speed. That saves power and battery life gets extended. Laptops and desktops do the same thing.
Click to expand...
Click to collapse
I do get the idea!.. i inquired about it bcoz nowhere it was mentioned that the processor was underclocked.. So basically the ideal processor speed is 800MHz and it can be overclocked to 1GHz is the way i see it!
sorta like that more like the speed auto adjust to your needs i think
So what kind of scores does this phone get in comparison to other new Android phones with or without 2.2. I am curious between the Quandrant scores of Hummingbird (Galaxy S), OMAP (Droid X), Snapdragon (HTC HD2/EVO 4G).
Thanks.
well the hummingbird beat the evo 4g in graphics and cpu power just search captivate benchmarks on youtube the channel name is androidandme
with mimocans lag fix ive seen people get scores as high as 1700(nexus one on 2.2 gets about 1250).
cognition 6.1 XXJVQ 2.3.4 gingerbread on my 1897 captivate
http://www.google.com/url?sa=t&sour...q93aAw&usg=AFQjCNFXnK6kfMAUUHmLjWnrNt4Mx-pZXw
Antutu shows me 1GHz CPU freq on my Yarvik TAB465EUK Exxa Tab . instead of 1.2GHz. Whats going on? When I change max freq to 1.2 tab is resetting. Max CPU freq with stable work is 1.1Ghz. Any idea?
I've asked the mods to close my other thread.
What I'll do in this thread is to test kernels and see which will be the best and or the most reliable undervolting parameters.
I know that each CPU/GPU are different, it will be only a reference for what can be done. I'll run extensive tests, stress test and real life test on the Nexus 7 device 32GB.
I'll reserve a couple of post areas because i want it to be a permanant thread and i put my device at risk for you my firends anyway it is not really an issue lol
I'll do the testing like that : ( how i'll do it and conditions )
1. I'll write the kernel name and version i am using for the test
2. I'll post the screenshots of the settings and/or a raw text of the settings for the specific kernel.
3. Trickstermod will be used for tweaking
4. Quadrant test for people who live for it
The conditions for the undervolt pass the test are the following
1. Running glowball for 30 minutes without crashing
2. Running Stability test 2.5 for 30 minutes. ( RUNNING EACH OF THE TESTS FOR 30 MINUTES C-A-D CLASSIC/CPU+GPU/SCALING TEST ) all in userspace mode.
Those settings will be the lower voltage achievable for me. You can use it as a reference but I cannot guarantee it will work for your device.. What I can suggest is using the boot delay option from the trickstermod menu. If we see that some settings are reliable for a lot of people, it would be nice to have help from some coders to write an init.d script with those settings. or just sharing other experiences. This is not a thread where I have the ultimate knowledge, but a thread who everybody can share their experiences, settings and so on to achieve the ultimate goal of performance and very low power consuption and battery life.
Those test will be time consuming but it is ok.
I do not expect any form of donation for that
If it helped you a little bit, you can just hit the help button and it will be my payday =)
Thank you very much
PS : For people giving 1 Star to the thread before I ever post the first undervolting settings, well, I do not know what to say. For the others who already tried the differents settings I,ll post day to day, feel free to post comments and rate the thread. You can even rate it 1 star if you want because you tried it. But for people who gave negatives reviews even if i didn't post any settings, please get a life.
December 4th 2012 6:06PM 1st stable aggressive undervolting
December 4th 2012, 6:06PM
ROM: Scott's CleanRom 3.0
Kernel : 3.1.10-franco.Kernel [email protected] #30
Stability issues : No
CPU frequencies settings : [email protected] Mhz
Governor : On Demand
I/O scheduler : Deadline
Read Ahead buffer : 2048
GPU Max frequency : 526
CPUQuiet Power Management : balanced
VOLTAGE SETTINGS : MPU
1300 Mhz @ 975 mv
1200 Mhz @ 950 mv
1100 Mhz @ 925 mv
1000 Mhz @ 900 mv
900 Mhz @ 875 mv
800 Mhz @ 850 mv
700 Mhz @ 825 mv
600 Mhz @ 800 mv
500 Mhz @ 775 mv
400 Mhz @ 750 mv
300 Mhz @ 725 mv
200 Mhz @ 700 mv
100 Mhz @ 675 mv
Notes for this undervolting
CPU stable at 975 mv for 1300 Mhz. Tried 970 mv with -5 incremental for other frequencies but the device just crashed. reverted back +5mv for all frequencies and run a second test and it was 100% stable.
The stock CPU voltage settings is 1175mv for 1300 Mhz and so on by 5mv incremental. We are able to achieve performance and stability with a global undervoltage of 200 mv. Actually this is a lot. What happened with the battery life ? Almost 8 hours gain vs the stock settings. This is a lot considering there is no drop with performances.
Edit : Just made other extensive testing. Played deadzone, dead trigger and gta 3 without any glitches. They run smoothly without freezes. We could assume this config is quite stable.
Next step would be undervolting bus and memory while trying keeping those voltages for the cpu. Ill need help to achieve that because i am not a big coder.
Ongoing testing ( may not be stable ) Dec 5 2012
ROM: Scott's CleanRom 3.0
Kernel : 3.1.10-franco.Kernel [email protected] #30
VOLTAGE SETTINGS : MPU
1300 Mhz @ 975 mv
1200 Mhz @ 950 mv
1100 Mhz @ 925 mv
1000 Mhz @ 900 mv
900 Mhz @ 875 mv
800 Mhz @ 850 mv
700 Mhz @ 825 mv
600 Mhz @ 800 mv
500 Mhz @ 775 mv
400 Mhz @ 710 mv
300 Mhz @ 640 mv
200 Mhz @ 635 mv
100 Mhz @ 625 mv
With on-demand, the tablet crash.
With interactive and other governors other than on-demand, seems working fine. Needs more testing
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http://forum.xda-developers.com/showthread.php?t=2009702
He uses my voltage settings as his new kernel base I think. I must verify with him.
Sparksco use 1600 mhz with a ultra low voltage of 1100 mV.
Expect great battery life with his Rom and kernel
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Good job, keep it up Mr. jsmasterx :good:
jsmasterx said:
December 4th 2012, 6:06PM
ROM: Scott's CleanRom 3.0
Kernel : 3.1.10-franco.Kernel [email protected] #30
Stability issues : No
CPU frequencies settings : [email protected] Mhz
Governor : On Demand
I/O scheduler : Deadline
Read Ahead buffer : 2048
GPU Max frequency : 526
CPUQuiet Power Management : balanced
VOLTAGE SETTINGS : MPU
1300 Mhz @ 975 mv
1200 Mhz @ 950 mv
1100 Mhz @ 925 mv
1000 Mhz @ 900 mv
900 Mhz @ 875 mv
800 Mhz @ 850 mv
700 Mhz @ 825 mv
600 Mhz @ 800 mv
500 Mhz @ 775 mv
400 Mhz @ 750 mv
300 Mhz @ 725 mv
200 Mhz @ 700 mv
100 Mhz @ 675 mv
Notes for this undervolting
CPU stable at 975 mv for 1300 Mhz. Tried 970 mv with -5 incremental for other frequencies but the device just crashed. reverted back +5mv for all frequencies and run a second test and it was 100% stable.
The stock CPU voltage settings is 1175mv for 1300 Mhz and so on by 5mv incremental. We are able to achieve performance and stability with a global undervoltage of 200 mv. Actually this is a lot. What happened with the battery life ? Almost 8 hours gain vs the stock settings. This is a lot considering there is no drop with performances.
Edit : Just made other extensive testing. Played deadzone, dead trigger and gta 3 without any glitches. They run smoothly without freezes. We could assume this config is quite stable.
Next step would be undervolting bus and memory while trying keeping those voltages for the cpu. Ill need help to achieve that because i am not a big coder.
Click to expand...
Click to collapse
how is the performance is it good because i have a lot of lag when i pull down the notification bar
sharjackmission said:
how is the performance is it good because i have a lot of lag when i pull down the notification bar
Click to expand...
Click to collapse
Undervolting should not impact the performance of the CPU.
What you can do is taking a look at the numbers and raise voltage a little. But it might be a lot of reasons why it is laggy. Possibly the governor ?
Other people tried the same settings without issues. But raisong the voltage a little wont drain the battery a lot as the number I gave are agressively low.
Cheers
Running on these settings and everything running smoothly. Thanks for the thread.
Sent from my Nexus 7 using Tapatalk 2
Running stock 4.2.1 with MKernel A19 & TRINITY... These voltages seem to be alright.
I am also using interactive and the deadline scheduler.
All is smooth so far... I'll report back if I run into any trouble.
UPDATE - Had to revert. Started getting freezes and crashes.
Trinity kernel's stock voltages seem to play nicely... Anything less is glitchy.
monsieurtalbot said:
Running stock 4.2.1 with MKernel A19 & TRINITY... These voltages seem to be alright.
I am also using interactive and the deadline scheduler.
All is smooth so far... I'll report back if I run into any trouble.
UPDATE - Had to revert. Started getting freezes and crashes.
Trinity kernel's stock voltages seem to play nicely... Anything less is glitchy.
Click to expand...
Click to collapse
For underclocking aaggressively for now I only recommand Franco Kernel. All other kernels Causes stability problems with the same voltages.
Ill let you know soon with that developpement.
Can't wait for m kernel optimizations
krazeecracker said:
Can't wait for m kernel optimizations
Click to expand...
Click to collapse
As soon as they realease the next version I'll test it.
For now the only thing it does is freezing the tablet.
The best undervolting I was able to achieve for now was with Franco Kernel because of the way the kernel is setting up. M-kernel and other boost Bus and memory speed that causes crashes with agressive undervolting.
Doing so, the performance gain is minimal and the battery life truly suffer at the end.
You can get except a few more FPS in certain games but not really noticeable.
jsmasterx said:
As soon as they realease the next version I'll test it.
For now the only thing it does is freezing the tablet.
The best undervolting I was able to achieve for now was with Franco Kernel because of the way the kernel is setting up. M-kernel and other boost Bus and memory speed that causes crashes with agressive undervolting.
Doing so, the performance gain is minimal and the battery life truly suffer at the end.
You can get except a few more FPS in certain games but not really noticeable.
Click to expand...
Click to collapse
No rush man, your work is amazing.
jsmasterx said:
As soon as they realease the next version I'll test it.
For now the only thing it does is freezing the tablet.
The best undervolting I was able to achieve for now was with Franco Kernel because of the way the kernel is setting up. M-kernel and other boost Bus and memory speed that causes crashes with agressive undervolting.
Doing so, the performance gain is minimal and the battery life truly suffer at the end.
You can get except a few more FPS in certain games but not really noticeable.
Click to expand...
Click to collapse
100% of everything you said in that post is untrue. Please make sure the information you pull out of thin air is correct before stating them as fact.
Also voltage tolerance at a certain frequency is device dependent. Not kernel dependent. No amount of circumstantial evidence will change the laws of physics.
One more thing, your frequency table in the first post is wrong. The A9 G core DVFS table does not go below 480MHz. Franco's table is wrong and as a result so is yours.
This thread looks interesting. If you'd like you can test my kernel attached to THIS post as a flashable zip.
:beer:
sparksco said:
This thread looks interesting. If you'd like you can test my kernel attached to THIS post as a flashable zip.
:beer:
Click to expand...
Click to collapse
I will. What would you like me to do after ?
Sent from my Nexus 7 using xda app-developers app
Metallice said:
100% of everything you said in that post is untrue. Please make sure the information you pull out of thin air is correct before stating them as fact.
Also voltage tolerance at a certain frequency is device dependent. Not kernel dependent. No amount of circumstantial evidence will change the laws of physics.
One more thing, your frequency table in the first post is wrong. The A9 G core DVFS table does not go below 480MHz. Franco's table is wrong and as a result so is yours.
Click to expand...
Click to collapse
I did not attack your kernel whats so ever i dont know why you are taking it personal.
As far as i know franco`s table is accurate and the G core can go under 480 mhz. To make sure i what i advance is true i even pluged the N7 to a debug box. My friend who is an analyst programmer certified it also
Sent from my Nexus 7 using xda app-developers app
jsmasterx said:
I will. What would you like me to do after ?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Whatever the goal of this thread is I suppose. It's based on bricked kernel but I modified it a lot so it's not really much like it anymore. To some it up it overclocks to 1.6ghz and has quite a few governors. I'm testing smartassv2 right now but I have a feeling it's not good for battery. I haven't really tested many of the other governors but I've never had any of them lock up on me. Voltage control is also supported. No GPU overclocking though.
Sent from my Nexus 7 using Tapatalk 2
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
Is there a way to overclock at Xperia m2?
If not, would it be possible for a developer to make a kernel to overclock both the gpu and cpu?
Thank you in advance ...
Sorry my English, I used a translator to create this post ...
I don't think that overclocking is a good idea since the architecture of the M2 is kinda bad. Sony even underclocked the CPU so the phone won't get hot or worse. It is possible
My previous phone was a Xperia E Dual.
It is a low-end single-core 1 Ghz (1000 Mhz) phone. But it has a kernel with an overclock to 1.8 Ghz.
Yes it got really hot at 1.8 Ghz. (About 40 °C after 2 minutes of gaming, then throttling back to 1 Ghz) But for burst workloads (like loading an app) the 1.8 Ghz was good.
If anyone could build an overclocked kernel, I would instantly flash it.
No, the phone isn't slow, but it could be snappier. (Try opening the settings app...)
Still waiting for an overclock.