Develop Bugs

overclocking dhd

I have recently rooted my dhd and currently running CM7. Using the cpu setting within the performance menu I am wondering what peoples thoughts are on a noticeable but safe increase of cpu speed. its set as 1017MHz which i believe is default. I am told I can run anything up to 1500 safely. can anyone confirm this and also tell me what kind of result (performance and battery life) i should expect.
thanks

Well, I use Android Revolution HD (a sense rom, meaning heavy UI!) and i overclock to about 1.3GHz. In terms of battery life when it's awake, it seems a drain a teeny bit more readily, but I've never had a freeze on sense (quite rare)
On stock it underclocks to let the processor max at around 400MHz when the screens off, so that helps to really save a lot of battery on standby. On CM, I'd expect it'd feel more or less the same in terms of performance after you hit 1.2/1.3GHz

hmohammed43 said:
Well, I use Android Revolution HD (a sense rom, meaning heavy UI!) and i overclock to about 1.3GHz. In terms of battery life when it's awake, it seems a drain a teeny bit more readily, but I've never had a freeze on sense (quite rare)
On stock it underclocks to let the processor max at around 400MHz when the screens off, so that helps to really save a lot of battery on standby. On CM, I'd expect it'd feel more or less the same in terms of performance after you hit 1.2/1.3GHz
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thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers

rhodri11 said:
thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers
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Click to collapse
The CPU is managed by the ROM itself. You can tweak it yourself by using setCPU (or similar), but I can advise you not to. Can't help you with the governors buddy, since I dunno what it is
Cheers

darude0306 said:
The CPU is managed by the ROM itself. You can tweak it yourself by using setCPU (or similar), but I can advise you not to. Can't help you with the governors buddy, since I dunno what it is
Cheers
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nice one dude

I'm running cm7 and I'm overclocked to 1.5 ghz. It's been totally fine for months.
Sent from my Motorola Startac running Atari 2600 software!

rhodri11 said:
thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers
Click to expand...
Click to collapse
Lucky you picked a linuxhead!
The system itself has a daemon (background process built into the system) that handles overclocking. It's all explained on the page and also on this thread:
http://forum.xda-developers.com/showpost.php?p=14638641&postcount=34279
You can use another app (like SetCPU) but the daemon usually handles screen off's quicker. The governors basically determine how the processor frequency is changed. I'll explain the common ones:
Performance - Runs at highest speed, so if you have a range of 200 to 1.3G, it'll stay at 1.3G all the time, not usually the best
Ondemand - The universal default for phone overclocking, it only changes the speed up after a certain percentage of the CPU is used, and it switches on the fly, so if the CPU is used too much at 400MHz, it'll ramp it up to maybe 600 or 800, and if it's still overused, it'll put it up to maybe 1 or 1.2G
Conservative - This is like ondemand, except it makes the changes more gradual. It can give noticable lags in the foreground at times, so this is mainly used when the phone is asleep (screen off)
Smartass - This governor is like ondemand, except it'll less readily switch frequencies to higher values when it detects the screen off. This isn't really used because the overclocking daemons take into account the phone being awake or not
Basically, there isn't really a need to change governors, only really frequencies if anything. The thread, however, does tell you how to change governors.

Im using latest LeeDroid GB 3.2.1 and to be honest with the work he's done with the Kernal (3.1.8BFS) I have found that the ROM is a lot MORE responsive without me overclocking the CPU.
Im not really sure how it all works, but I guess doing this on different ROMS has its own different out comes.

overclocking has me confused too, is there really that much of a benefit in it? how much will i gain from it?

toby_lerone said:
overclocking has me confused too, is there really that much of a benefit in it? how much will i gain from it?
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Click to collapse
There is a benefit when you use certain apps, or even sense itself. For example, I've never had sense ui freeze, or go slow. The under clocking helps to improve the rubbish battery life when your phone is asleep.
In terms of measuring the gain, I have no idea. Really, I'd think you could use a process heavy app, or benchmarking app and see.
There's also loads of guides on overclocking to help out! (that's how I got the hang of it! )
Sent from my Desire HD using XDA Premium App

For the need on OC, it depends on the kind of apps u're using. If u're happy w a non OC DHD, its totally up to u.
But for the UC, it works as a terrific battery saver, mich better/effective than other battery saver soln on market

The safe range depends on the DHD as the manufacturing changed even though same part, i'm OC 1.5GHz "On Demand" profile and under clock 245MHz on screen off "Power Save" profile.
Getting approx a day usage on Lee 2.1.

Tegra 3 and SetCPU

Does using setCPU with the Tegra 3 and it's 5th core muck up the Tegra 3's native power saving capability (ie. using the fifth core as a low energy solution for minimal activities)?
Has anyone seen tests of battery use with and without?

What I have seen from my use over the past week or so with SetCPU is that you can set the governor and the minimum clock both of which have an effect (although minimum clock is not strictly adhered to).
I don't believe the 5th core is exposed to the android OS so SetCPU shouldn't effect that at all.

I'm testing the beta and no it does not effect the max 100% of the time the tegra power management seems to kick in. I have informed mike (setcpu author) about this issue he is looking in to it.
Sent from my HTC One X using xda premium

I guess set cpu is not supported quad core yet

As James pointed out, the 5th Slave core is Transparent and not visible to Android, so it 'shouldn't' be effected by SetCpu

nibbleart said:
I guess set cpu is not supported quad core yet
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Click to collapse
It supports quad core CPU scaling, the question is about the 5th core.
That the 5th core is invisible does make it seem like it wouldn't effect this issue, however I would like to understand a bit more about how it works to be sure.
From what I understand, when processor use is low and the CPU is scaled below 500mhz(?) then the 5th core alone is used, whereas at higher frequencies the other 4 cores are fully engaged.
I would just be worried that setting the CPU speed through methods other than whatever method HTC/nvidia had arranged for might negate this benefit. It'd be good to know from the setCPU guy what's going on, since he likely understands a lot about how CPU scaling works...

Here's my Feedback on using SetCPU with HOX:
When trying to underclock my phone
Max: 1000 Min:51
Result: rebooted within 5 minutes and then kept on doing this untill I reset the SetCpu settings to phone defaults and uninstalled
similar user experience here: http://forum.xda-developers.com/showthread.php?t=1596992&highlight=setcpu
I have seen that there is an app created for the HOX:
CoreControl: http://forum.xda-developers.com/showthread.php?t=1652136
I want to give this a go and I feel this a relevant topic to be stickied maybe under a different Topic Title ie. Custom CPU settings
Will install CoreControl and revert...
BTW: what settings have you tried using with SetCPU to underclock that doesnt result in a random reboot and that works, also what version of setCpu are you using

system tuner will allow to set the clocks for T3 properly

CoreControl is for enable/disable cores, not for overclock/underclock, I've been using it for a while, at least my HOX doesn't heat up much
Sent from my HTC One X using xda premium

Man it would be nice top have core control on the thrill
Sent from my LG-P920 using XDA

CoreControl Feedback
vegasphinx said:
CoreControl is for enable/disable cores, not for overclock/underclock, I've been using it for a while, at least my HOX doesn't heat up much
Sent from my HTC One X using xda premium
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Click to collapse
I can now concur with @vegasphinx it doesn't heat up as much and I dont notice the difference besides the toastie popping up every so often saying CoreControl has been granted SU
can any of you give me an idea how to setup the Battery Stats within CoreControl

It crashes because there's no kernal that supports overclock/underclock.
Sent from my HTC One X using Tapatalk 2

[Q] SetCPU - Extra Info?

Hi there, thinking about getting SetCPU - I have some questions before I do because I hear it can be dangerous?
- I've heard it can brick your phone?
- What if you set it too high?
- Do you personally have to monitor it?
- What are the benefits?
- Use alot of battery?
- Is it really worth using?
- Is it optimized for different phones - example the One X?
Thanks guys!

JDBurnie said:
Hi there, thinking about getting SetCPU - I have some questions before I do because I hear it can be dangerous?
- I've heard it can brick your phone?
- What if you set it too high?
- Do you personally have to monitor it?
- What are the benefits?
- Use alot of battery?
- Is it really worth using?
- Is it optimized for different phones - example the One X?
Thanks guys!
Click to expand...
Click to collapse
Hi, i have read that SetCPU cannot view all the cores i have read alot saying that System Tuner works fine you might want to try that.
I used to use SetCPU on my sensation and never hand any issues with it i did not monitor the app at all
Benefits allows overclocking if available in kernel
it can be overclocked and cause some issues such as overheating but if set correctly will be fine doesnt use much battery if any
and no i dont think you can brick your phone
if you set it too high i believe i had to reflash rom nothing major
BTW this is based on my own knowledge and usage
Hope this helps

Thanks man

JDBurnie said:
Thanks man
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Click to collapse
How much battery life can you save using setCPU?

lamenramen said:
How much battery life can you save using setCPU?
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Click to collapse
None in theory, if the CPU is slower it takes longer to go from
idle - process - idle
Faster speeds allow it to get it over and done with faster and get back to idle.
Of course it will at times stop the CPU going higher than it needs too which could save battery.
Under volting will save more batter then underclocking ever will.
Sent from my HTC One X using xda premium

SetCPU can not see Tegra 3 yet
Use System Tuner and its free

hamdir said:
SetCPU can not see Tegra 3 yet
Use System Tuner and its free
Click to expand...
Click to collapse
Thanks. I have system tuner, but what do I need to do in order to improve battery life?
I have set the governor to powersave. Is there anything else? How would I undervolt using this app?

lamenramen said:
Thanks. I have system tuner, but what do I need to do in order to improve battery life?
I have set the governor to powersave. Is there anything else? How would I undervolt using this app?
Click to expand...
Click to collapse
undervolting requires your phones kernel to support it, currently on these forums there is only one that does but i haven't tested it, sticking firm to the "stock kernel is best" and will do untill the kernels have more time to mature.
you could limit your max speed to 1 GHz, if you are rooted you can use Core control to turn off cores and run your phone as a dual core.

treebill said:
undervolting requires your phones kernel to support it, currently on these forums there is only one that does but i haven't tested it, sticking firm to the "stock kernel is best" and will do untill the kernels have more time to mature.
you could limit your max speed to 1 GHz, if you are rooted you can use Core control to turn off cores and run your phone as a dual core.
Click to expand...
Click to collapse
Not to be lazy, but would running the phone as dual core and limiting it to 1 ghz result in a perceptible battery savings? I'm trying to get a feel for how much I should expect custom ROMs to make my One X perform up to par. Thus far, I've installed two custom ROMs and felt like the improvements were all safely in the minor category.
I did install cyanogenmod 7 on a phone last year wow, that resulted in major benefits.

lamenramen said:
Not to be lazy, but would running the phone as dual core and limiting it to 1 ghz result in a perceptible battery savings? I'm trying to get a feel for how much I should expect custom ROMs to make my One X perform up to par. Thus far, I've installed two custom ROMs and felt like the improvements were all safely in the minor category.
I did install cyanogenmod 7 on a phone last year wow, that resulted in major benefits.
Click to expand...
Click to collapse
Running on 2 cores stops the phone from using and 2 cores uses less power then 4, playing games and using all cores is over kill 2 cores will run the game without lag use less power and make less heat.
You'll maybe get 10% from doing that but I haven't tested.
Really the only time any of this saves battery is during demanding programs, tegrea has a super low power companion core, for all your power saving needs.
Sent from my HTC One X using xda premium

I tried conservative governor while downloading sd files for Nova3 gave execllent results
I strongly advice not to undervolt tegra3
t3 is not like any other chip and UV or OC should not be attempted
OC because the chip is already at the max of its thermals
UV for the same reason n might end up with problems like flicker
changing governors and UC should be enough

Overclocking of LG G4

Hi everybody,
I want to know if we can overclock our Snapdragon 808 to 2GHz (ARM A72 cores) with a modified kernel.
Also, If somebody is going to work on this challenge.
Thanks!!

Androsesp said:
Hi everybody,
I want to know if we can overclock our Snapdragon 808 to 2GHz (ARM A72 cores) with a modified kernel.
Also, If somebody is going to work on this challenge.
Thanks!!
Click to expand...
Click to collapse
A57 cluster, probably yes. I'm also working on a kernel, but I intensely dislike Overclocking because it isn't all that useful. The key to performance is with optimisation, not with raw power. So I'm most likely not going to include it, sorry.

What about underclocking and/or undervolting?
I think performance is good enough as it is, but would like to get better battery life.

I would like to be able to undervolt in order to relieve the bugging high temp warning. This phone rarely uses max performance. So, overclocking is not really a priority. Maybe a custom hotplug.

Crappy cpu. No point messing with it.
Sent from my A0001

GUGUITOMTG4 said:
I would like to be able to undervolt in order to relieve the bugging high temp warning. This phone rarely uses max performance. So, overclocking is not really a priority. Maybe a custom hotplug.
Click to expand...
Click to collapse
Hotplugging has been dropped not long ago. You'd basically need to reinvent it. Plus it costs more power than it would save

And what about undervolting to prevent excessive heat, @mythos234?

yea i guess undervolting is the only benefit here coz 2 ghz wont be hard to achieve but getting that overheating msg sooner aint worth it...
next thing u know is accessory back plates with mini fans to keep the phone cool...
seriously tho what good is the extra power for ? the phone is already fast with the correct setup (not that i saw any lag when it was stock)

anyone knows how to see the cpu binning in this phone?

oile said:
And what about undervolting to prevent excessive heat, @mythos234?
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Click to collapse
Excessive Heat?

mythos234 said:
Excessive Heat?
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Click to collapse
A number of people have gotten over-temperature messages, sometimes with the phones even shutting down.
This has been reported with using navigation, I believe, and I know people have reported it when shooting video. High screen brightness is likely a contributor. But there are examples of the phones running too warm.
Personally, I'd be more interested in cooler running, and longer battery life, rather than increased peak performance. So underclocking, if anything.

Well, the overclocking is not necessary, but is an opportunity to know the limits of the chipset. Moreover, with it we could know if we can make undervolting to our phones and make it more battery efficient with an underclocking kernel, when we need it.

RedOCtobyr said:
A number of people have gotten over-temperature messages, sometimes with the phones even shutting down.
This has been reported with using navigation, I believe, and I know people have reported it when shooting video. High screen brightness is likely a contributor. But there are examples of the phones running too warm.
Personally, I'd be more interested in cooler running, and longer battery life, rather than increased peak performance. So underclocking, if anything.
Click to expand...
Click to collapse
Happens to me too when gaming. The problem I observe is that Indeed, it is not excessive heat. But LG thinks otherwise.
You can actually underclock using Kernel Auditor and disable cores. Unless you meant Undervolting.

mythos234 said:
Excessive Heat?
Click to expand...
Click to collapse
Wanna check out periscope and comment back ? Atleast I know that app will push the phone to its limits.
Sent from my LG-H818 using XDA Free mobile app

Currently using Kernel Adiutor to disable both A57 cores and the phone screen does not heat up like before... Battery life has improved from what i saw yersterday. Continuing testing today. Only problem i have is the damn phone will enable one of the A57 cores after a while which i dont like. I need my settings to stick.
Any Kernel Dev know which files are causing this? Tab 3 had something like this but a couple of files changed solved the non sticking settings on cpu.
Overclocking/underclocking sure but just disabling cores would work for most.
Sent from my LG-H815 using Tapatalk

mythos234 said:
Excessive Heat?
Click to expand...
Click to collapse
lol, you're funny.

marcadam said:
lol, you're funny.
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Click to collapse
I haven't had any popups or heat related reboots, so I was wondering what the matter is here.
On every phone I see complaints over heat so I wondered if something is to it here or if it's the usual. And if there are overheating warnings and shutdowns, then there might be indeed something in the bush.

Try charging your phone in the car whilst using google maps to get to an important meeting, and then take a call just for good measure............and boom, there you have your own little meltdown.

marcadam said:
Try charging your phone in the car whilst using google maps to get to an important meeting, and then take a call just for good measure............and boom, there you have your own little meltdown.
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Click to collapse
That happens on every phone I ever had though. It's advised to not use a device while charging at all, so if you stress it to 120% while charging, of course it heats up..

@mythos234 is a pleasure to have you here (speaking as xiaomi mi2s owner too xD)
What Temps do you reach using cpu intensive apps?

Nexus 5X only using 4 cores?

Like many people here and a few reviews have pointed out the nexus 5X seems to get overwhelmed by some day to day task and multitasking. So today as my phone was struggling to load a web page in chrome and stream some Sirius xm over Bluetooth I decided to try and see how heavy the load on the CPU. I fired up cpu z and according to the app it was under a heavy load and the 4 A53 cores were maxed out at 1.44ghz and the 2 A57 cores were stopped! So I rebooted figuring it must have been a bug and nope the A57 cores where still stopped. Anyone else noticing this or is it just my device?

Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.

agentdr8 said:
Not seeing that behavior, although it's possible cpu-z needs an update or is buggy; after launching the camera to generate some load, it showed all 6 cores as being [email protected] until I restarted it.
Click to expand...
Click to collapse
the snapdragon 808 uses the bigLittle architecture.
That means there are 4 low powered cpus, and 2 high powered cpus.
Most of the time, only the 4 low powered cpus are in use.
When the phone needs more performance/power, the 2 other high powered cpus kick in.
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.

dwang said:
So what you are seeing is normal. Most of the time, the phone is only using the 4 little cpus.
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Click to collapse
I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.

agentdr8 said:
I don't think cpu-z should show all six cores as A53s though, only the little 4. That's the part I think might be a bug.
Click to expand...
Click to collapse
trickster mod works, I see the 2 big cpus kick in all the time, but it requires root.

So after trying a bunch of different things out looks like running a benchmark will someone's get all the course up and running but not all the time the first screen shot is with 4 cores and the 2nd is with all 6 both seem pretty low to me