Database Users

Utilizing SetCPU

Anyone have any clue how to set up SetCPU to maximize battery life on a Nexus one with A11 of the Sapphire ROM? There are so many settings and profiles and on demand/conservative/etc. and the profiles and advanced, etc.
Any ideas?

On-demand is way to go for battery life. It basically means it only uses the amount it needs to. So 245-998 means it cuold run less then 998 at low stress times.
I use profiles.
Charging, I turn max down to like 615 or so to keep heat down
Under 40% Battery, I go down to 615 to save battery
OVer 40C, I go down to 576 to get it back under 40C.
Also, some people underclock the CPU to maximize battery life. Just realize there is a give and take because a slower CPU = longer process time. A happy medium is probably the most efficient.

how do you know when the cpu runs faster? like can i open certain apps and see that it goes up? i always see mine at 384

One thing you need to know is that your CPU settings aren't what you think. Setting a "Screen Off" profile is pointless. Your phone idles at 386mhz already. When you set a MAX CPU speed you're telling your phone that it is not allowed to use more than that setting.
The only real thing you're going to get from SetCPU is a "Screen on" MAX.
I set mine at 800 and I got a significant battery life increase.

Cheeze[iT] said:
how do you know when the cpu runs faster? like can i open certain apps and see that it goes up? i always see mine at 384
Click to expand...
Click to collapse
Your CPU goes up when it's being used more. If you're on Ubuntu on your PC you can add a CPU monitor to the task bar. When you open something you can see the usage go up. You can do it on windows too but you have to have task manager open.
It's the same as any computer. Usage = battery loss.

just an FYI...
i have this set between 768-998MHz an i get exceptional battery life and its snappy as well. set on 'performance' and i unplugged the phone this morning at about ~7:30 ans i have 69% battery left under moderately-heavy usage
=] my phone just came back as a replacement NEW on monday. i unlocked the bootloader so i ad to pay them $55.. oh well

dumbestcrayon said:
One thing you need to know is that your CPU settings aren't what you think. Setting a "Screen Off" profile is pointless. Your phone idles at 386mhz already. When you set a MAX CPU speed you're telling your phone that it is not allowed to use more than that setting.
The only real thing you're going to get from SetCPU is a "Screen on" MAX.
I set mine at 800 and I got a significant battery life increase.
Click to expand...
Click to collapse
Can you elaborate? You are saying I should just set the overall max to 800 on my N1? Do I set it to ondemand and set on boot? Won't that slow the device down?

hah2110 said:
Can you elaborate? You are saying I should just set the overall max to 800 on my N1? Do I set it to ondemand and set on boot? Won't that slow the device down?
Click to expand...
Click to collapse
I've been playing with the overall speed as well. i turned mine down to the 600 range and it still feels fine. I'm still confused about the 3 options, the ondemand, userspace or performace... whats the difference? I don't ever feel like it clocks down?

Cheeze[iT] said:
I've been playing with the overall speed as well. i turned mine down to the 600 range and it still feels fine. I'm still confused about the 3 options, the ondemand, userspace or performace... whats the difference? I don't ever feel like it clocks down?
Click to expand...
Click to collapse
http://en.m.wikipedia.org/wiki/Dynamic_frequency_scaling

So my battery life pretty much sucks and i've been looking for a way to improve it a bit, which is how i found this thread.
I downloaded SetCPU already but which settings do i choose to maximize my battery life?
This is how i have it now:
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Dumbestcrayon said setting max to 800 worked well so i tried but i cant get it exactly on 800. Also, profiles are blank right now since i dont want to choose anything that could stress my phone.
Any help would be awesome

PhantomRampage said:
So my battery life pretty much sucks and i've been looking for a way to improve it a bit, which is how i found this thread.
I downloaded SetCPU already but which settings do i choose to maximize my battery life?
This is how i have it now:
Dumbestcrayon said setting max to 800 worked well so i tried but i cant get it exactly on 800. Also, profiles are blank right now since i dont want to choose anything that could stress my phone.
Any help would be awesome
Click to expand...
Click to collapse
There's not much you can do with SetCPU to improve battery life. I have mine set to 768 at all times and it helps a little. Understand that you're not going to change much. The only way to improve battery life is to not use your phone. Other than that you're pretty much going to get the same results. A lot of people will argue but common CPU knowledge shows other wise.

dumbestcrayon said:
There's not much you can do with SetCPU to improve battery life. I have mine set to 768 at all times and it helps a little. Understand that you're not going to change much. The only way to improve battery life is to not use your phone. Other than that you're pretty much going to get the same results. A lot of people will argue but common CPU knowledge shows other wise.
Click to expand...
Click to collapse
While he may call himself/herself the dumbest crayon, it isn't much so.... Set cpu was made to kill your battery while trying to scavange whatever is left.. it is more intended, now, for overclocked usage. Not stock. Cause as noted.. this is not really for regular use as it only improves a little. What matters is the kernal being used. This is where the engine for everything that you is kept, to work with the processor.
After this, set cpu is a show item...

So just to be clear. I was reading that the HTC Incredible will be underclocked to 768. Is it possible to underclock to 768mhz with just SetCPU, or does a modified kernel have to be flashed to see any battery performance benefit?
thanks.

ghostrida said:
So just to be clear. I was reading that the HTC Incredible will be underclocked to 768. Is it possible to underclock to 768mhz with just SetCPU, or does a modified kernel have to be flashed to see any battery performance benefit?
thanks.
Click to expand...
Click to collapse
yes you can underclock you would set your Max speed to that speed and don't use profiles.

[Q] Low Quadrant Scores

I know that this tool isn't a good indicator of performance... but when I see other people with the EVO getting 1200+ and I am at 800-900, I am starting to wonder if there is a setting wrong. My phone occasionally feels sluggish. Any idea's what the cause could be? using an AOSP rom with Tiamat Kernel
- Just realized I wasn't in Q&A forums Sorry! - please delete if needed

Stuke00 said:
I know that this tool isn't a good indicator of performance... but when I see other people with the EVO getting 1200+ and I am at 800-900, I am starting to wonder if there is a setting wrong. My phone occasionally feels sluggish. Any idea's what the cause could be? using an AOSP rom with Tiamat Kernel
Click to expand...
Click to collapse
Good question!
Ive always wondered why some score so low on good combos.
I'm on CM nightly rc3 build 18 with savgzen 1.0.0 cfs-havs and scoring very well
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new quad you will get low scores
imho quad and all the other benchmark test mean nothing

CheesyNutz said:
new quad you will get low scores
imho quad and all the other benchmark test mean nothing
Click to expand...
Click to collapse
I agree when comparing to other phones... but 2 phones of the same model should get similar scores right?

Stuke00 said:
I agree when comparing to other phones... but 2 phones of the same model should get similar scores right?
Click to expand...
Click to collapse
Have you ran it off of a fresh reboot?
I find my best scores were when I rebooted let it sit for 3-5 min after reboot, and then fire it up.

Mark_in_Tulsa said:
Have you ran it off of a fresh reboot?
I find my best scores were when I rebooted let it sit for 3-5 min after reboot, and then fire it up.
Click to expand...
Click to collapse
Trying it again after the phones been on a few minutes.
I used to use SETCPU and I thought maybe that screwed things up

If you want to increase scores why don't you put your Max frequency at 1190 and min at 1190 with setcpu. High scores are a thing of the past.
~ d3rk

dirkyd3rk said:
If you want to increase scores why don't you put your Max frequency at 1190 and min at 1190 with setcpu. High scores are a thing of the past.
~ d3rk
Click to expand...
Click to collapse
That is with my CPU at 1190. I am not trying to get a high score, but a score my phone should be able to get, you know? I see someone with an EVO get 1500 and then I am thinking something is wrong with my phone... I have the same phone..

Stuke00 said:
That is with my CPU at 1190. I am not trying to get a high score, but a score my phone should be able to get, you know? I see someone with an EVO get 1500 and then I am thinking something is wrong with my phone... I have the same phone..
Click to expand...
Click to collapse
Putting stock in scores is foolish though. 936 does seem a Tad bit low for sure. My set up is cm7 #36, tiamat kernel 3.3.5, JIT on, setcpu 1113 Max, 422 min smartass governor. I just ran a linpack and got 37mflops and 1200 in benchmark. This is the same set up I usually run on any rom or kernel. I try not to clock so high because it just drains battery. My evo actually can perform flawlessly clocked at even 998mhz. The only thing I notice different is that scores change and I don't really take a performance hit. Underclocking is the new overclocking lol. My last suggestion would be to play around with different kernels to achieve what you desire. Try savage zen!
Edit: just ran these 2 test just for you right now. Same results and I'm using same kernel you are.
~ d3rk

Run, it once, and then run it again right after w/out quitting. The if you run it multiple times (at least on my phone), all subsequent scores are on par with the second one which is usually 1-300 more than the first. Won't mean anything any different, but at least you might get some higher scores.
Also, you might need to try some different kernel combinations as well as different clock speeds. Mine usually does fine at 998 sometimes even at 921, but if I go too high it will start to slow things down. If you're not getting good results at 1190, try backing it off one setting at a time and see if you can get improved scores.
As far as comparing to other phones, even of the same make/model, you can't really do that. As long as they're in the same ball park, within a couple hundred, you're probably OK. Every phone reacts differently.
It also depends on the version of quadrant. You def can't compare diff phones running diff versions. I usually don't use it to compare to other phones, just diff setups on my phone. I know if I'm getting 1200 avg and then I all of the sudden flash a ROM and kernel and can't break 800 that something is probably wrong.
The most important thing is how the phone feels though. The fact that you say it feels sluggish leads me to believe you might need to try a diff kernel or see if something is eating up your CPU. Also, when you're over clocking, the min clock speed can effect your scores just as much as the max speed.

Ya give savage a go.
Kernel CPU setting:
Ondemand governor
Min 245
Max 998
My Device scores high runs smooth battery drain not a problem.

I just tested mine and got 1326. With these settings.. CM7 Nightly 36 with 2.6.37.6-Tiamat -v3.3.5 kernal.
Governor - Conservative
Min - 384
Max 1036

[Tips & Tricks][Poll] SetCPU Advanced Configs [NS & NS4G]- Share Yours!

Ok so it is very hard to find dedicated threads to this and I think the more of us trying this and reporting back to one thread, the more successful we will be in achieving great battery life or performance (i do it for battery life)
Here's what i have found to work well today, just some simple adjustments but my battery didn't drop a single percent for about 1.5 hours of very light use(still great tho).
MAIN TAB
Setting the Scaling to: Conservative
Max: 1000MHz
Min: 100MHz
PROFILES TAB (i only have one profile set):
Screen off - Max: 400 (don't go lower, your phone wont wakeup)- Min: 100- conservative - Priority 50
ADVANCED TAB(minimal changes, but i feel they have helped a bit):
Sampling Rate: 20000
Up Thresh: 80
Down Thresh: 25
Ignore Nice: 0
Freq Step: 20
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These may not be the best settings as we will play guess n check, but thats the reason of this thread, lets figure these things out.

You need root permission's for this, correct?

driftnut56 said:
You need root permission's for this, correct?
Click to expand...
Click to collapse
yessir you do

You should look into the smartass governor if you want to look for screen off frequencies. SetCPU only wastes CPU cycles for you to do this when a kernel can do it. Of course, I believe the end result is that you're still saving more battery, so at least it's a step forward

I'm overclocking 1.2 ghz. Switching between interactive and conservative.
Conservative has better battery life, but interactive is a bit snappier.
I'm new to the setcpu thing; gathered bits and pieces here and there to try and find the perfect settings.
Great thread though, hopefully people will post so we can take full advantage of this beast!
BTW, Tried to post screenshots, but I need more forum activity.

Had no success with conservative myself it allows the clock to step down to 100 eventhough I have the minimum at 200. The smart ass works like a charm no more lock screen lag
Sent from my Nexus S 4G using Tapatalk

teddybrukshut said:
I'm overclocking 1.2 ghz. Switching between interactive and conservative.
Conservative has better battery life, but interactive is a bit snappier.
I'm new to the setcpu thing; gathered bits and pieces here and there to try and find the perfect settings.
Great thread though, hopefully people will post so we can take full advantage of this beast!
BTW, Tried to post screenshots, but I need more forum activity.
Click to expand...
Click to collapse
Hi. I am new to over clocking with SetCPU. How did you get it to go over the 1000 max? I don't understand all of the other settings enough to feel brave enough to change them other than the first tab.
Thanks

ArizonaLoco said:
Hi. I am new to over clocking with SetCPU. How did you get it to go over the 1000 max? I don't understand all of the other settings enough to feel brave enough to change them other than the first tab.
Thanks
Click to expand...
Click to collapse
You have to flash a custom kernel (i recommend netarchy's kernel), then when you open setcpu, you can "autodetected recommended settings". You will then see the ability to overclock.

itsallsubliminal said:
Ok so it is very hard to find dedicated threads to this and I think the more of us trying this and reporting back to one thread, the more successful we will be in achieving great battery life or performance (i do it for battery life)
Here's what i have found to work well today, just some simple adjustments but my battery didn't drop a single percent for about 1.5 hours of very light use(still great tho).
MAIN TAB
Setting the Scaling to: Conservative
Max: 1000MHz
Min: 100MHz
PROFILES TAB (i only have one profile set):
Screen off - Max: 400 (don't go lower, your phone wont wakeup)- Min: 100- conservative - Priority 50
ADVANCED TAB(minimal changes, but i feel they have helped a bit):
Sampling Rate: 20000
Up Thresh: 80
Down Thresh: 25
Ignore Nice: 0
Freq Step: 20
These may not be the best settings as we will play guess n check, but thats the reason of this thread, lets figure these things out.
Click to expand...
Click to collapse
i used following profiles and UV settings...
still looking into it though...
http://caleb1783.tistory.com/196

I'm not using setcpu. It causes launcher pro to freak out for me. Installed CPU master and all is perfect. Running matr1x 7.5 @1.3 jiggawatts with the smartass v2 governer. Also I'm on gpa17 at the moment.
sent from my Touchwiz'd Nexus S 4g

[Q] What are the default CPU frequencies and governor?

What is the default CPU min/max frequencies and the governor being used? (on stock kernel)
My guess is that the max is 1512 and min is 384. But I'm really not sure what governor is used by default.
Anyone know?

Ondemand
Sent from my Nexus 4 using XDA Premium HD app

Defaults are as follows:
MIN: 1026MHz
MAX: 1512MHz
CPU govenor: ONDEMAND

xandr00 said:
Defaults are as follows:
MIN: 1026MHz
MAX: 1512MHz
CPU govenor: ONDEMAND
Click to expand...
Click to collapse
The default minimum is 1026??? Are you sure? Why would it be set to keep running so high? I heard that it doesn't fall from 1026 to 384 easily until 5-6 seconds have passed...but if 1026 is the minimum..then, smh

Is the default I/O CFQ?

Max - 1512
Min - 384 (CPU Apps don't show it correctly)
Govenor - Ondemand
I/O - Noop

Harry GT-S5830 said:
Max - 1512
Min - 384 (CPU Apps don't show it correctly)
Govenor - Ondemand
I/O - Noop
Click to expand...
Click to collapse
The fact that CPU apps don't show the minimum frequency properly, and the fact that it hangs on 1026 for a few seconds before dropping to 384...do you think that indicates a problem?

I don't know if the minimum is actually 1026 or not but I know for a fact that when you TOUCH the screen, it does ramp up to 1026. So that can be a explanation why battery life isn't as good in reviews.
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zephiK said:
I don't know if the minimum is actually 1026 or not but I know for a fact that when you TOUCH the screen, it does ramp up to 1026. So that can be a explanation why battery life isn't as good in reviews.
Click to expand...
Click to collapse
I remember with my i9300, as soon as you touched the screen, it would ramp up to 800mhz. It has to do with project butter. It does keep everything running smooth, at the cost of battery life.

K Rich said:
I remember with my i9300, as soon as you touched the screen, it would ramp up to 800mhz. It has to do with project butter. It does keep everything running smooth, at the cost of battery life.
Click to expand...
Click to collapse
never heard such of a thing on the galaxy nexus (might of been present but no one ever mentioned it so im not sure how GN reacts to that). first time ive heard of it.
battery life has been nothing but exceptional for me on N4 and GN. didnt notice a difference between 4.1 and 4.0.x for battery life. it stayed the same or slightly gotten better.
i recommend using franco kernel though

zephiK said:
never heard such of a thing on the galaxy nexus (might of been present but no one ever mentioned it so im not sure how GN reacts to that). first time ive heard of it.
battery life has been nothing but exceptional for me on N4 and GN. didnt notice a difference between 4.1 and 4.0.x for battery life. it stayed the same or slightly gotten better.
i recommend using franco kernel though
Click to expand...
Click to collapse
I agree completely, battery life has been great. Just letting others know what might be the cause for "bad" battery life from past experiences

[GUIDE] OnePlus One Uber Battery Savings Guide by oscarandjo

We all know that OnePlus One's 3100 mAh battery and ROM optimizations clearly has given the flagship killer the edge in battery life over its competitors.(puny yureka)
But there is always room for improvement.
Reddit user oscarandjo has published a great guide on various battery saving techniques.
The OnePlus One has a brilliant battery, it's a large battery combined with an efficient processor and that leads to great standby and screen on times. This is why the OnePlus One has one of the best battery lives of all of the current flagships.
There are of course many things you can do to make the battery better, most of these things involve turning useful features off. This guide isn't one where you disable all things that make a smartphone smart, instead it makes small changes that make a big difference.
Many of these methods require root, if you aren't rooted yet and are a technical person get it done ASAP using this guide
This guide doesn't include any basic methods like turning aeroplane mode on in poor signal areas, it's more technical methods.
Click to expand...
Click to collapse
First method is to cut down wakelocks
Second method is to block unnecessary apps location services
Third method is to undervolt your CPU
Fourth method is to use Greenify to auto hibernate apps
Fifth method takes some time, but makes a difference
Sixth method is Amplify
Final method is to hide adverts
Click to expand...
Click to collapse
Visit the thread on Reddit to get the step by step procedures.
Do give oscarandjo's thread an upvote.
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All of these I already know but it seems like a good guide for people who are new to android.
Some more important things to consider are hotplugging and under clocking.
Underclocking obviously saves battery by reducing the max CPU clock speed and is much more effective than undervolting.
Hotplugging takes up the most battery depending on the type of hotplugging used.
MPDecision is Qualcomm's method of hotplugging and is aggressive but does not respect the max freq when its under clocked. You need MSMLimiter for it to work properly.
Intelliplug has multiple variants in which some allow you to set the min and max number of cores and others which have predefined profiles. Its fast but lags with dt2w.
Alucard hotplug seems the most efficient because stock settings allow for smoothness and battery savings.
My favorite is MSM MPDecision because it allows you to set the number of cores online at any time while respecting other parameters. I find that if you set a max and min of 2 cores online at any time and use the slim CPU governor with gboost disabled, under clocked to 1.5ghz, you get amazing screen on time with zero lag. Approximately an hour every ten percent while being smooth as butter.
Edit: hey @llcooljerry! Nice to see you here on xda for a change!
sent from my amazingly awesome OnePlus One with Stereo Mod
Don't forget to hit thanks!

abhi08638 said:
All of these I already know but it seems like a good guide for people who are new to android.
Some more important things to consider are hotplugging and under clocking.
Underclocking obviously saves battery by reducing the max CPU clock speed and is much more effective than undervolting.
Hotplugging takes up the most battery depending on the type of hotplugging used.
MPDecision is Qualcomm's method of hotplugging and is aggressive but does not respect the max freq when its under clocked. You need MSMLimiter for it to work properly.
Intelliplug has multiple variants in which some allow you to set the min and max number of cores and others which have predefined profiles. Its fast but lags with dt2w.
Alucard hotplug seems the most efficient because stock settings allow for smoothness and battery savings.
My favorite is MSM MPDecision because it allows you to set the number of cores online at any time while respecting other parameters. I find that if you set a max and min of 2 cores online at any time and use the slim CPU governor with gboost disabled, under clocked to 1.5ghz, you get amazing screen on time with zero lag. Approximately an hour every ten percent while being smooth as butter.
Edit: hey @llcooljerry! Nice to see you here on xda for a change!
sent from my amazingly awesome OnePlus One with Stereo Mod
Don't forget to hit thanks!
Click to expand...
Click to collapse
Many thanks, what did you do with cpu boost driver? What are your settings if you have it enabled and which io scheduler?

abhi08638 said:
Edit: hey @llcooljerry! Nice to see you here on xda for a change!
sent from my amazingly awesome OnePlus One with Stereo Mod
Don't forget to hit thanks!
Click to expand...
Click to collapse
Hey buddy I'm glad to be here. But i still lack the technical know how in most parts. I thought i will be able to learn and get the facts from experienced users in here.
The guide is kinda meant for all the new users who wants more out of the battery without much tinkering.
Thanks mate. I seriously will look more into under-clocking my one.
Well i did overclock my M14x laptop a few years back.
Cheers.

eefieboy12 said:
Many thanks, what did you do with cpu boost driver? What are your settings if you have it enabled and which io scheduler?
Click to expand...
Click to collapse
disabled CPU Boost driver because it'll cause lags with slim governor since its basically an on demand governor
sent from my amazingly awesome OnePlus One with Stereo Mod
Don't forget to hit thanks!