Hello,
i just bought RN3 a week ago, so my question is, how can I undervolt thes SD 650 Soc? I have recently installed
TWRP with RR 5.8 and Radon 3.3 Kernel.
I am using Impulse Governor and max Freq is 1,2 Ghz. Touch Boost Diasable. I have under 1% Battery loss per night.
Now i asked me if it is possible to lower the Voltage from the SoC for Maximum Battery Savings. Is this good or should i prefer something else instead?
Related
I was just wondering what people get for battery life with miui 1.7.8 and OTB .13 kernel.
Also, what does overclock actually mean? Does it mean that setting the min and max to 1400Mhz in Voltage Control or remain the min to 100 and max to 1400Mhz?
I'm currently on noop, ondemand and min=100Mhz, max=1400Mhz with nothing UV'ed.
Please help me to get better battery life!!!!!!!!
Your CPU by default can do, unmodified, a certain number of commands per second. These commands are measured in Hertz, thus a 1GHz processor does about 1 billionish commands per second. Overclocking means you allow your processor to do more commands in the same time frame. The downside to this, however, is that more electricity is flowing through the CPU, thus draining the battery more. Having a lower clock speed will save some battery life.
That being said, I have kept my CPU clocked at maximum of 1GHz, with the I/O Scheduler set to deadline and the CPU Governor set to smartass, and I'm getting about a day out of my battery, maybe a little less. I have no idea if that's the "optimal" battery saver setting, but it works for me.
I do have a question, though... What do those two settings mean, anyway?
1n73rn37_j3d1 said:
Your CPU by default can do, unmodified, a certain number of commands per second. These commands are measured in Hertz, thus a 1GHz processor does about 1 billionish commands per second. Overclocking means you allow your processor to do more commands in the same time frame. The downside to this, however, is that more electricity is flowing through the CPU, thus draining the battery more. Having a lower clock speed will save some battery life.
That being said, I have kept my CPU clocked at maximum of 1GHz, with the I/O Scheduler set to deadline and the CPU Governor set to smartass, and I'm getting about a day out of my battery, maybe a little less. I have no idea if that's the "optimal" battery saver setting, but it works for me.
I do have a question, though... What do those two settings mean, anyway?
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What do you mean by two settings?
Like, what are I/O Schedulers and CPU Governors? That last question was me hijacking the thread.
I've never OC'd any of my phones before but was keen to try it on the Galaxy Europa as the 600MHz CPU seems a bit weedy at times. What settings would people recommend? Ideally I would like good on-demand performance, good battery life and no frying of the CPU
Thanks
I not guaranted for the results but you can try to raise to 710. I tryeid and its work for me on any of cyanogen roms.
I use smartassV2 with a frequencies range of 122-480 Mhz. For me a longer battery life it's more important than waiting a second! And if I need to play something hard I set max to an upper freq..
my 2 cent..
Hi guys, i'm quite new with razr (above 2 months). I just wanted to ask You a question about what are the best settings like governor and io for better life? Currently i'm using hotplugx and sio.
I think you are right on the spot using that configuration mate.
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Dartaa said:
Hi guys, i'm quite new with razr (above 2 months). I just wanted to ask You a question about what are the best settings like governor and io for better life? Currently i'm using hotplugx and sio.
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Grab SetCPU off the market. You need to be rooted, but it's great for controlling your CPU settings. I use the 'hotplug' governor. These are my other settings:
Screen Off - 600 max 300 min
Battery Temperature greater than or equal to 37 C (99 F) - 800 max 300 min
Battery less than or equal to 49% - 800 max 300 min
Battery less than 69% - 1000 max 300 min
Battery greater than or equal to 69% - 1200 max 300 min
First of all, I am totally new to this forum.(I mean as an registered user)
Before that I always had the thing from the forum what I needed.
Now here is my question,
If i overclock the processor speed of my android device to a higher position, isn't it gonna take more battery power than usual?
Phone model: Xperia Live With Walkman
Boot loader: unlocked
Root Access: Rooted
Kernel: Rage 3.2
ROM: Real ICS r6
overclocking is going to drain your battery obviously.
overclocking drains more battery but gives better performance,too much over clocking makes phone heat & even hardware issues
saqib nazm said:
overclocking drains more battery but gives better performance,too much over clocking makes phone heat & even hardware issues
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My phn's original capacity is 1 Ghz
How much overclocking can keep my battery level fair and also give smoother performance without causing me any hardware issue?
Btw, Thx for the ans.:good:
Saimoon said:
My phn's original capacity is 1 Ghz
How much overclocking can keep my battery level fair and also give smoother performance without causing me any hardware issue?
Btw, Thx for the ans.:good:
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Power consumption = Voltage x Voltage x cpufreq x some constant for your device. If you OC (raise the cpufreq) you will have more power consumption and more heat generation because most of the power is dissipated as heat and the heat is what damages your cpu. It is probably impossible to kill your cpu in one go, because your device should shut off when it begins to over heat (this will look like a random reboot). But you will slowly degrade the over all performance of your cpu and eventually you get to a point where you see a lot of random reboots. So if you decide to OC you probably want to also undervolt as well. This is because power consumption (and heat) scale with the square of the applied voltage. One rule of thumb is that your maximum cpufreq is actually determined by the voltage. For example, my cpu is rated to be stable at 1 GHZ and 1200 mV, so when I OC and UV, I scale the cpufreq as high as I can go, as long as the voltage is not greater than 1200 mV, for me this is 1.5 GHz.
Also remember that your cpu governor will have a big effect on your power consumption and it is probably doing a good job keeping the cpu running in the low range of the cpufreq table, so you are unlikely to see big effects of OC or UV on real life battery consumption.
every chipset is different, even though the brand and model is the same. noone can guarantee you any safe value to overclock.
Thanks Giving!
Thanks Everybody for helping me out!
I am applying 1.402 GHz :laugh:
Overclocking is not the only thing you have to think of in order to improve your phone's overall performance. The most important issue for me is choosing the right kernel and applying the right governor + I/O scheduler. From my experience with Mini (i have tried ALL available kernels and most of ROMs) I can surely say that now with my phone (ICS .587, custom ROM + kernel) overclocked to 1.5 GHz battery with minimal use (20 mins calls, 40 mins WiFi per day) lasts at least 60 hours. When I bought my phone (GB, no OC, all stock) battery was struggling to stay alive for 24 hours with the same minimal use. Conclusion: first pick the right kernel and ROM, then OC.
There's something odd with Snapdragon 625 on RN4 (according to me).
I have noticed that the maximum clock is half of the times coming down to 1.6GHz or less instead of 2.0GHz, especially when charging when the phone is warm (but temperature isn't high enough to trigger down clocking-- around 30-40 degree Celsius).
This also happens when the phone is not charging and I am doing some task like using apps or playing games when the phone's hardly heating up (afterall, SD 625 is known for its no heating issues).
It looks like whenever I am doing some task that doesn't involve much processing, the max clock comes down (but when I am performing some CPU intensive task such as installing an app, the max clock stays at 2GHz).
I am using interactive governor. PLEASE NOTE THAT I AM TALKING ABOUT THE MAXIMUM CPU CLOCK WHICH IS AFFECTED IN MY CASE. Using Kernel Adiutor to reset max freq. to 2GHz hardly works. It seems like the system ignores my clock settings. Even if i set the governor to performance, the max clock still keeps coming down and going up.
What's the deal with this processor?
Also, all the 8 cores are ALWAYS ON. There's no option for CPU hotplug in Kernel Adiutor.
Please someone shed some light over this.
CPU is thermal throttling not only when CPU is hot, but also when battery is hot. Also it is using a frequency which it needs, if it's using 1.6ghz it means it doesnt need more for whatever you have been doing.
k3lcior said:
CPU is thermal throttling not only when CPU is hot, but also when battery is hot. Also it is using a frequency which it needs, if it's using 1.6ghz it means it doesnt need more for whatever you have been doing.
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It also happens when the phone is not warm/hot.
Please note that I'm not talking about the current frequency that is being used, I AM TALKING ABOUT THE MAX FREQ that is pulled down and up when I am working (even when just simply using the phone for little tasks which doesn't really heat the phone up).
While using any governor, the max freq should stick to what it is set to and the current freq varies. But here, the max freq is varying along with the current freq. Is this some feature or what?
If this is actually due to heating, is the management so bad that even 35-40 degree celsius makes the CPU throttle? Generally throttling happens at much higher temperatures.
This is 14nm SoC, it has much lower temperatures but also much lower max temp. (throttling start on lower temps)
You can't heat up this CPU to 60C or more like Snapdragon 8xx for example, because it will shut down.
k3lcior said:
This is 14nm SoC, it has much lower temperatures but also much lower max temp. (throttling start on lower temps)
You can't heat up this CPU to 60C or more like Snapdragon 8xx for example, because it will shut down.
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LOL means I can't make good use of the 2GHz 8 core CPU for long because it'll heat up and simply throttle down. That's too stupid to have a powerful processor.
i am having heating issue. I found no thread discussing.. I am in Miui9 global beta version. Rooted withMagisk using redwolf twrp. My top part of screen heats in normal usage for 5 minute in wifi/data.I have checked the cpu temp( maximum 42) and battery tem( 36 to 38)..But the screen become hot..any work around? Is it a software or hardware issue? how to resolve it