Database Users

Does the stock firmware CPU Throttle?

I have been kicking around getting SetCPU to do some auto CPU throttling to help with battery life, but I'm uncertain if I actually would see a lot of improvement.
The reason I am unsure, is I installed some CPU info widgets, and they report a CPU frequency that already seems to throttle. Is it actually doing throttling or are the widgets just not accurate? If it is throttling, is there still a case to be made for SetCPU?
Thanks!

If you want something that's just set and forget, SetCPU alone will do very little to extend usage time.

The stock kernel does throttle the CPU.
SetCPU gives you control over how your (rooted) phone throttles it's CPU, it allows you to change the CPU governor, set minimum and maximum CPU speeds, or overclock with a compatible kernel.

CPU Spy will give you a break down of what speeds the CPU is using and how often.

thanks for the info!

Dynamic Overclocking of CPU?

Is this possible on Androids (mostly, this phone?) Before this I had a windows phone and I had a software where I could set a minimum and maximum cpu clock rate.. and then it will overclock dynamically as needed! If you are running a game and it needs more power, it will overclock it while the game is running.. dynamically without you having to change the clock-rate manually.
This will solve battery life problems when overclocking to 1.8ghz. There is no need for it to be draining the battery at 1.8ghz if you are only texting and probably even a 200mhz cpu can do that lol
Hope what I said makes sense.

it's easily done by installing Setcpu,provided that your phone has been rooted and kernel modded to allow overclocking.
Sent from my IDEOS X5

Actually it is already done in stock ROM without root, setCPU provides a way to change the default way of handling the CPU frequencies and governors.

The stock ROM comes right out of the factory can do "cpu stepping" itself, just like the intel "Speedstep" thing. But the factory powersaving profile (or if you wish to call the scaling) might not match our taste. Then there it comes the apps called Setcpu which enhances the cpu stepping behavior according to our preference. The enhancement considers the frequency of sampling cpu load, thresholds modifications, and other considerations.
In Setcpu, we can accord one of the following scaling setting that suits our taste. From my experience, each scaling setting behaves as follows:
ondemand - runs at Min or at Max (eg. 200 MHz or 1200 MHz)
interactive - adjusts frequencies according to the real load
conservative - behaves like "interactive" but incline to power saving
performance - always runs at Max
powersave - always runs at Min
userspace - disables Setcpu scaling and uses stock scaling
smartass - behaves like "interactive" but always runs at Min when LCD screen is off
And again, the phone must be rooted and kernel modded for Setcpu to work properly.

I've been using setcpu with conservative. I like conservative because it gives you a lot of control over the throttling of the cpu. It seems to work pretty good.
Are you getting any benefit from overclocking to 1.8GHz? I also overclocked to 1.8GHz, but I didn't see any noticeable improvement past 1.0-1.2GHz.

I like to use interactive Cox I enjoy the fast sampling rate and hence the high responsiveness.
Sent from my IDEOS X5

Personally I have not tried overclocking yet.. still need to update the kernel, but I'm afraid it might get unstable.
Didn't know that CPU could do it dynamically using different profiles.
Thanks all for the help

Tcm9669 said:
Is this possible on Androids (mostly, this phone?) Before this I had a windows phone and I had a software where I could set a minimum and maximum cpu clock rate.. and then it will overclock dynamically as needed! If you are running a game and it needs more power, it will overclock it while the game is running.. dynamically without you having to change the clock-rate manually.
This will solve battery life problems when overclocking to 1.8ghz. There is no need for it to be draining the battery at 1.8ghz if you are only texting and probably even a 200mhz cpu can do that lol
Hope what I said makes sense.
Click to expand...
Click to collapse
I have setcpu but the x5 is not listed....??

[Q] setcpu and evo battery life

hi
i have a htc evo 4g running android 2.3.5 and kernel 2.6.35.10-g4b48446 [email protected] #1 and i have a few questions on setcpu. its a stock rom and it is rooted.
I shut off my profiles and disabled the perflock - it said success. So i ran the long bench test and only got 2078 ms, not 5000. so i dont know if its really working. I reengaged the profiles and i think it works with the screen off. the rest of the time i am not so sure. in fact it seems to still drain fairly rapidly unless i turn on some battery saver or something. I have the following settings on my profile all are set to ondemand except charging which is set to performance. the only other setting i can choose is user
in call 998 max and 245 min priority 91
screen off 384 max and 245 min priority 88
charging any 998 max and 245 min priority 85
battery <25% 460 max 245 min priority 81
bbattery <50% 883 max 245 min priority 65
Temp> 42 C 614 max 245 min priority 50
what am i doing wrong? I have it enabled and i have notifications off
i have system panel to try and monitor but its not recording and it also drains the battery like crazy so i think thats set wrong as well but i dont know why.
i also tried juice defender but it doesnt work right because it says the AOSP file isnt found in the system/app folder. I looked there and also in teh data/app folder and its not there. So i dont know what to do about that.
thanks

stock sense is just not all that efficient really. (well thats my opinion) profiles seem to look ok but also finding a different kernel with different governors (smartass v2 is rather efficient and changing around the frequencies as needed)
auto sync settings as well? turning some stuff of that you dont use or look at and so on can help too
and calibrating battery a bit can help aka a full discharge a full charge and full discharge will sure help (also what i have found personally)

kernels
thanks for the reply. You mentioned different kernels. I understand about rooting my phone but not so much about how to load a different kernel or different rom. Where do i go to learn about that?

jjdonohue said:
thanks for the reply. You mentioned different kernels. I understand about rooting my phone but not so much about how to load a different kernel or different rom. Where do i go to learn about that?
Click to expand...
Click to collapse
look around in the development section as there are some great kernels available right now...Ca1ne just released a new version of the underworld SBC v6 that i personally like with great battery life ...Mason kernels are also great with great battery...just make sure u read the threads completely to make sure u are using the right kernel for the rom u are using...ie there are kernels for ics...sense....and so on......also the kernels load through recovery...just load kernel to sd and wipe cashe and dalvik and flash zip...hope this helps...Carp

Hi another question about kernels. I am a bit of a newbie other than rooting my phone so i want to understand what advantages/disadvantages different kernels have. You mentioned smartassv2. i have seen others like
chopsuey kernal
freedom kernel
golden monkey kernel
savaged-zen kernel
tiamat kernel
all of these i think support sense roms.
as i understand it , you have to go into the recovery screen and load hte zip file off the sd card and reboot with the new kernel. What are the risks/rewards of doing so? I guess i am trying to understand which one would suit me best.
i have the current sprint lovers rom i guess since it is factory stock so should i also be considering changing the rom? Maybe i am getting ahead of myself here.
thank you again.

which rom are u wanting to run....this will help us steer u in the right direction
im sorry your entire post didnt load on my end i see ur running sprint stock....that is a fine rom but i have not ran it myself....
---------- Post added at 01:53 AM ---------- Previous post was at 01:36 AM ----------
i personally have switched to sbc kernels when they came out with a sense version...i am addicted to sense 3.5...just my personal likings...sbc is superior battery charging whichcarp will give u better full charge on your battery so when the light turns green and u unplug it it wont drop down to like 90% battery in just a few mins....i can squeeze another couple hours out of my battery with sbc and even more depending on light usage....but u will stil need to play around with different cpu speeds like 786..921 and so on to see what your individual evo can stand....what works for 1 may or will not work for another....lags and bootloops etc...

You don't need to change Roms, you can if you want, but changing kernels will unleash new features. Some features are:
Full hdmi mirroring
The ability to over/under clock CPU
2 way call recording
Improve battery charging
Enable swap space
Improved performance of phone
Some kernels allow under volting CPU to further save battery (this can cause some stability issues so start slow with undervolting)
You may want to take a look at Lionfish kernel also, just note first boot may take a while.
Also ditch the profiles in set CPU, I tried profiles and it never seemed to work right. A good governor will handle all your profile settings.
I like smartass, and intellidemand the most on my set up.
As an idea ok the battery life I am getting, I streamed Pandora over 3g for about 8 hours not much other phone use, screen off most of the time, and my phone was at like 20 %. I thought that was pretty good.
Sent from my Synergized Aggressive Lionfish Evo using the XDA app

thanks detcup4evr for helping out explaining that better...i blew out my back and between no sleep and pain meds the brain just dont want to fire...thanks for stepping in bro....carp

smartassV2 vs InteractiveX ... which one giver better performance AND battery life??? currently I am running LIONFISH 1.8 with interactive X

Using profiles in setcpu actually uses more battery life. Because it has to be running all the time and monitoring phone state to know when to change to a different profile.
interactiveX vs smartassv2 all depends on how you use the phone and really which kernel it is. I've noticed little things like on mason's I got better battery with smartassv2 but on other kernels I get better battery with interactiveX. As far as performance, you won't realize a difference.

ok so it sounds like i should try the sbc sense 3.5 kernel with the smartassv2 governor. Did i get that right? i will look around to see where i can download that.

Were you refering to this kernel?
Underworld Sense Kernel v0.6

yes this is the kernel i run with ODJDub HD Bliss!! Sense 3.5...if u choose to run this rom it will give u alot of different options of kernels and apps and other things from the installer....if i can help u more just feel glad to hit me up....carp

Ok so with lionfish 1.8 kernel and interactivex, I should not use a profile? What does CPU go to on screen off? also where does it mention profiles use battery? I'd like to read more into this..
Thanks
Sent from my PC36100 using Tapatalk 2

Sense rom with Underworld v 0.6
At Carp -
thank you for the advice. I was thinking maybe i would use my ROM still (its a sense i believe) and load the underworld v0.6 kernel with sbc and see how that goes. I havent done very much research on ROMs so i dont know that i want to get that deep into this just yet. It seems like underworld has alot of nice features. One thing that i am wonderig though is with the new kernel would have any further ability to unload some of the sprint bloatware or do i need a new rom to do that or is there another way to do it? Things like qik video , gmail, accuweather blockbuster etc all load themselves periodically. I kill them but then they come back like weeds. Even programs i do like , like pandora, wheres my droid etc come back also. But i dont want them to.

no u will be fine getting rid of apps and bloatware u dont wont...u wont need a special rom....i use a free app in the market called root uninstaller to get rid of useless bloatware,apps etc...then u can go in and manually uninstall what u don't want...be careful not to uninstall anything which the phone needs to boot and operate such as android system...you will see the things u are looking for when u load the app...hope this helps...carp

I actually did something unusual.
I have universal aggressive lionfish SBC 1.8, swagged out stock N, and smartassv2
I set the ideal, sleep, and wake freq for smartass v2 to 128, while setting the up rate to 245. I used set cpu to lower the min freq for my device to 128. I set max load to 100, and min load to 85, and down time to 0. I then set a profile for "ondemand" during screen off, of 128-384.
I actually have pretty awesome battery life (I'm an uber heavy user).
Sometimes it reads that I spend over 70% of my time at 128mhz.
I feel no lag. It clocks to 998mhz maybe 15% of the time, mainly when loading web pages.

flashed underworld v 0.6
Hi Carp,
well, i flashed the underworld v 0.6. So i see in set cpu that i can underclock to 128 and overclock to 1228. however, i slid the slider over to 1228 by accident and it froze the phone even though it says its still at 998 mhz. then it rebooted by itself. so i guess that wasnt a good idea. Anyway, theres a ton of governor choices now in the profiles section. i am not familiar with alot of them but i was wondering which of those would provide the most benefit. they are as follows -
ondemandx
interactive x
intellidemand
smartass
interactive
conservative
smartass 2v2
performance
along with ondemand and user space from before.
thanks

Good to hear....u will need to try different settings as each evo will be a little different...ie.. some can take alot of overclock and as u said when u went to high it locked up......my evo likes min 245 and i dont go very little over 998...mine does not like high overclock....i run between 768 and 998 or until i can see a lag or slow down in performance..depends on which rom i am running...i like ondemand x and smartass 2 on my evo but there is a good read in papa smurph's smurphed out v6.6 thread in development on governors and such...go to post #2....i wish there was a perfect setting i could give u but u will have to see what your evo can take...part of the fun of android.....carp

Governors
Thanks carp. I guess experimentation is the only way to know. i charged my phone last night ad i noticed that it does take alot longer to go from 100% charge to 90% but i also noticed that the phone temp was at like 110 deg F and a voltage around 4.263 or so. i have read some thread where they claim its bad for the Lithium ion batt to be over 4.2 V but as soon as i unplug it it drops to 4.1 something usually. I am using battery indicator app to measure it. i am using the underworld w/sbc kernal currently but the voltage being higher has me a bit concerned that i am damaging the battery kind of like pumping water into a jar with the the lid on tight til it bursts. Or in the batteries case - too hot i guess or until it plates.

Best GPU Govenor for any custom rom?

Can you guys give me the best GPU govenor for any kind of rom? thanks!

derking1 said:
Can you guys give me the best GPU govenor for any kind of rom? thanks!
Click to expand...
Click to collapse
That'll depend on what you need your phone for.
If you want all your cores to run at max speed thereby maximizing performance on games and browsing pick the performance kernel.
Otherwise for normal usage just pick the interactive governer.
There's a lot of governors available but these 2 are the only ones that are important and actually useful. Major kernel developers only give support to these 2 governors as they are the most useful when compared to others.
Dont use any battery saving governer. Trust me, your phone will slow down and make it unusable.
Hope this helps!

Best for what?
Governors are built into the kernel, so if you want choices, you'll have to flash a kernel that has those choices. Some are for high performance. Some are for saving battery. And then there's ones in between. Some might work better if you underclock or undervolt to save battery. Some might work better if you run only 2 cores. Some have better wake-up speed from sleep. "Best" depends on what you plan to do with your phone.
Don't forget about profiles either. For example, I've been playing around with HellsCore kernel and HellsCore Manager. You can create profiles depending on what you're doing. Like, if you're plugged in and playing a game, set it for max performance. If you need it to last as long as possible, limit the max clock speed, run only 2 cores, and use a battery saving governor. With HellsCore Manager you can even mix it up; Performance or normal until battery hits 50% (or whatever), and then switches to a battery saving profile. Pretty nifty.

The best CPU governor for optimal battery saving

Guys, i need your opinions -
How do u think - what is the best CPU governor for maximum battery life ?
The possibilities are in the poll.
Keep in mind, that different cpu governors have different modes, so it will be advisable not only to vote for your favourite, but also to mention in the topic your prefered profile for the respective governor...
The mods for the poll are taken from arter97kernel...

that's how I use when I need that the battery lasts longer and gives me results.
sometimes even put the processor speed to 1000MHz .
It gets a little slow but it can handle
I forgot screen cpu but I have at 1400MHz and undervolt light

Hey ^^
well i prefer zzmoove with the zzmoove battery yank profile on Boeffla kernel 2.8 for Slimkat (check my Profile for more Infos: Link). It runs smooth, gives me more then enough Performance and also good Battery Saving. It also features a frequency lock when turning off the Screen and limits the max Freq to 600 mhz which is perfect if you want to run downloads or something similar without problems in the background and your screen is off, but also gives you good powersaving. Unfortunately if you hear Music it can stutter in zzmoove because of the Hotplugging functionality even when the screen is off. To solve this problem you have to turn off the Hotplugging Functionality at Screen off (i read that somewhere, but forgot where).
greetings kaz

gsms said:
Guys, i need your opinions -
How do u think - what is the best CPU governor for maximum battery life ?
The possibilities are in the poll.
Keep in mind, that different cpu governors have different modes, so it will be advisable not only to vote for your favourite, but also to mention in the topic your prefered profile for the respective governor...
The mods for the poll are taken from arter97kernel...
Click to expand...
Click to collapse
I use S5 Sensation in my I9300 and the battery life is the better I have in my phone. The governor used by default is pegasusq.