Develop Bugs

Cpu scaling question

Will there be any problems with my phone if I have max cpu speed at 800 or lower?
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No. Just don't expect enough of a battery gain for it to be worth it.
Texted while driving

I use my phone in a very hot environment so I just want it to stay cool.
How much will under scaling effect heat produced?
Sent from my SPH-D700 using Tapatalk

The term is underclocking.It might help, but CPU temperatures vary with each phone, the best bet would be to just give it a try.
Texted while driving

K I'll try that
Thx for replying
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gtuansdiamm said:
I use my phone in a very hot environment so I just want it to stay cool.
How much will under scaling effect heat produced?
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If you haven't already, you might want to also install a widget that monitors vital stats, like temperature. I use one called TEMP+CPU Pro. It monitors CPU usage, clock speed, temperature, and available RAM and only takes up the space of one icon on your desktop.

I've been capped to 800mhz on a kernel that goes up to 1.3ghz for 2 weeks now. No problems.

Well if it makes your face smile, I run at 600mhz.
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Thx for the replies
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600 MHz??
Custodian said:
Well if it makes your face smile, I run at 600mhz.
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Seriously?
Do you get any lag?
I'm currently on EXT4, VisionKernel 1.0, deOdexed EC05 and when I clock down to 600 MHz, my Epic stutters here and there.

GRK4G63 said:
Seriously?
Do you get any lag?
I'm currently on EXT4, VisionKernel 1.0, deOdexed EC05 and when I clock down to 600 MHz, my Epic stutters here and there.
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well i keep my phone at min. 200 and max 400 and i have no problems with it and the battery is great. u just need to b a lil more patient when its that low.

lilajrestnom said:
well i keep my phone at min. 200 and max 400 and i have no problems with it and the battery is great. u just need to b a lil more patient when its that low.
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Are you referring to your screen off setting or do you run it at 400/200 all of the time?
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Phone is hot

What's the highest temp you have seen your phone at? Mine currently is at 105° f
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I have hit almost 120 F before. Not much to worry about if you're a casual user. Thermal throttle should just kick in.

TheKeeperOfPie said:
I have hit almost 120 F before. Not much to worry about if you're a casual user. Thermal throttle should just kick in.
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What's thermal throttle?
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Nolenm04 said:
What's the highest temp you have seen your phone at? Mine currently is at 105° f
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highest ive seen is a cpu temp of 109C. btw 109C = 228.2F. the devices safety shutdown is at 110C. i have a feeling that you posted a battery temp of 105F. 105F for a cpu temp is quite cool, considering the body temp averages at 98.6F.

simms22 said:
highest ive seen is a cpu temp of 109C. btw 109C = 228.2F. the devices safety shutdown is at 110C. i have a feeling that you posted a battery temp of 105F. 105F for a cpu temp is quite cool, considering the body temp averages at 98.6F.
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Oh damn lol I didn't know that
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Oh, I assumed you meant the battery temp indicator that most programs give out. I'm not sure what I've hit on my CPU, but if you hit a temperature too high, cpu or battery, thermal throttle will either scale down the frequency to cool down your processor or turn itself off/reboot if the cpu or battery hits too high of a temperature, thus saving your phone.

TheKeeperOfPie said:
Oh, I assumed you meant the battery temp indicator that most programs give out. I'm not sure what I've hit on my CPU, but if you hit a temperature too high, cpu or battery, thermal throttle will either scale down the frequency to cool down your processor or turn itself off/reboot if the cpu or battery hits too high of a temperature, thus saving your phone.
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I use set CPU that's where I get it from
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Nolenm04 said:
I use set CPU that's where I get it from
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thats battery temp. the trinity kernel toolbox shows cpu temp.

[Q] Seeder entropy generator, does it make a noticeable difference?

http://forum.xda-developers.com/showthread.php?t=1987032&nocache=1
Worth the plunge? Still not rooted since I don't see the need as of yet...

Seems like it's snappier. Could just be perception but check it out and see.
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I have a very noticeable difference.
Sent from my SCH-R950 using Tapatalk 2

Seeder Entropy Generator is such a cool damned name who cares?

found to be useless
http://www.geek.com/articles/mobile...rooted-android-phones-proven-useless-2013014/

Thanks T3. I was half tempted to try it.
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Well sorry but it definitely makes my system faster no matter what these other people say. I find for instance that Tapatalk can get hung up quite easily but when I run this mod forums load instantly every time.
So, try it out and see for yourself.

Or instead of using the app (since it murders the battery life) you could just change the min frequency of your CPU to like, 600mhz or higher and it does the same thing as this app

m4xwellmurd3r said:
Or instead of using the app (since it murders the battery life) you could just change the min frequency of your CPU to like, 600mhz or higher and it does the same thing as this app
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No it doesnt do the same thing. I have my cpu set at 1800 performance and this mod clearly makes a difference above and beyond that.
And it may burn battery a bit faster but it doesn't "murder" your battery. I've been heavily using my phone with the mod on for 6 hours and have used about 40% of the battery. Pretty normal burn rate for browsing, texting and watching netflix non stop.
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How much do you undervolt?

My S3 was getting really hot after rooting so I decided to try undervolting. I was able to under volt each clock speed by -100mv, and my device hasn't seen any performance issues, runs cool, and battery lasts way longer! What do you guys keep you voltage settings at?
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dima470 said:
My S3 was getting really hot after rooting so I decided to try undervolting. I was able to under volt each clock speed by -100mv, and my device hasn't seen any performance issues, runs cool, and battery lasts way longer! What do you guys keep you voltage settings at?
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It doesn't matter what other people UV since all devices are different. I can reach -125 all steps (haven't tried farther) but some others can barely do -25. It's just how their device is built.

BWolf56 said:
It doesn't matter what other people UV since all devices are different. I can reach -125 all steps (haven't tried farther) but some others can barely do -25. It's just how their device is built.
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I understand. I'm just wondering what people are running at
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The reason I personally don't do both under clocking and over clocking is that the phone itself isn't made for that. I personally don't know what this phone can handle. I have seen people under clock and over clock phones and have it work while some people have phones that can't handle much at all especially the refurbished ones. My S3 handles it well but I only tried it out once. That's my feeling on the subject. If you do do either undervolting, under clocking or over clocking just remember to do it responsibly and not put it to highest power and leave it there.
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Is this cpu temp normal

I have lyapota kernel with undervolt but get this cpu temp. Is this normal?
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That looks extremely hot my friend, I have never seen mine that hot.
What was your phone doing to reach those temperatures?
What are your settings?
Which version of kernel?
Governor?
Voltages?
here's my temps
Using lm#17 pre aroma
-75 cpu undervolt
Even under full load I'm only seeing a maximum of around 50-55

intel007 said:
That looks extremely hot my friend, I have never seen mine that hot.
What was your phone doing to reach those temperatures?
What are your settings?
Which version of kernel?
Governor?
Voltages?
here's my temps
Using lm#17 pre aroma
-75 cpu undervolt
Even under full load I'm only seeing a maximum of around 50-55
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Click to collapse
Played glowball for 5 minutes. Lyapota kernel latest version with ondemand and -25 cpu undervolt
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Seems really hot to me, try 017 and see how it differs mate, undervolt it a little more too

intel007 said:
Seems really hot to me, try 017 and see how it differs mate, undervolt it a little more too
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Heats up the same and when i undervolt more it gets unstable
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FaiselW said:
Heats up the same and when i undervolt more it gets unstable
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Highest at 81°C is normal...it won't go pass that. Stock kernel capped at 85°C. When reach at that temp, CPU will be throttled to maintain below capped temp.
Just don't play heavy games while charging. Almost can fried egg with this phone. [emoji39]
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