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How to "use" kernals

edit: yes I know right after I hit the submit thread button I realized I spelled kernel wrong
I just flashed faux's 0.1.2 1.56 GHz NoHz kernel, and everything worked fine. My question is to do with utilizing the kernel for what it can do. I checked my cpu speeds via adb, and the max speed is indeed just stock. Now, I would love to utilize the 1.56 GHz capability of this kernel, but in the first post of his thread faux says not to use any OC apps and I also remember from reading through another thread (I think the Dual-Core support discussion thread) that he doesn't recommend the OC Daemon either. How are people OC'ing if you can't use OC apps or OC Daemon? I vaguely remember seeing a post/thread once that had to do with manually entering clock speeds, but I can't remember where it was. So my question for this part is how can I get the cpu up to speeds I want to like other people are doing (basically, is there a manual way or some other way I don't know about or is everyone just using OC apps/OC Daemon against faux's wishes)?
This part is to do with governors. I can find a wealth of information on what particular governors are designed to do. "This governor is designed to conserve battery when the screen is off" "this governor is designed for maximum performance" yada yada. What i can't find is how you choose which governor your phone uses. I used adb to check available governors and it gives me "ondemand performance". I assume this means that my phone/kernel is currently using that governor. Cool. But how do I switch to a different governor if I want to? It looks like SetCPU allows you to change governors, but is that the only way?
Thank you in advance for your help.

Shouldnt need oc app with his kernels mine is at 1.56 ever since i flashed it.
On demand is the only one that properly works with dual core processor. Even with an oc app you can only select on demand or performance and you wouldnt want to use that governor since it forces the cpu to work at max frequency at all times. To use oc daemon you need the virtous oc scaling files to select frequencies
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hev88 said:
Shouldnt need oc app with his kernels mine is at 1.56 ever since i flashed it.
On demand is the only one that properly works with dual core processor. Even with an oc app you can only select on demand or performance and you wouldnt want to use that governor since it forces the cpu to work at max frequency at all times. To use oc daemon you need the virtous oc scaling files to select frequencies
Sent from my HTC Sensation 4G using XDA Premium App
Click to expand...
Click to collapse
Thanks. I'm curious then why faux includes smartass in his thread if on demand is the only one that works properly. I'm also not sure why mine is at stock clock speed, but it definitely is. So is oc daemon the way I should try to bump it up to 1.56?

I believe the smartass governor is supposed to have buipt in profiles like the ones you can make in a app like setCPU. so a cpu tuner would be pointless with the smartass.
And yes i prefer oc daemon to other apps like it. The newest one is like 2.1.3 i think. You are also gonna need the folder "vituous oc" with 6 files governors for screen on and off and min and max frequency. One file for each. Im on ARHD 3.0.4 with 0.1.0 kernal so it already came with the folder in system/etc/virtuous_oc
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Summertime CPU governor or Temp throttling?

Like many parts of the world, here in Australia it can get very hot. I would like to have my Galaxy Note automatically slow down when its too hot. I'm thinking this might mean a CPU governor that checks temp as well as CPU load.
If something like this already exists then does someone know where I can find it?
Otherwise I wonder if its not too hard to modify an existing governor to include temperature based throttling.
Currently I use CPU Master Pro to enable an overheat profile when it hits 49°c but you can get days here where the air is that hot! It needs to keep slowing down if it keeps heating up more. Even CPU Master Pro can't do that.
Sent from my Amiga GT-N7000 using XDA Premium.

Use setcpu profile.
Make a profile in setcpu, set the rule to if over 40 degrees limited cpu from 200 mhz to 1000 mhz. Its very easy
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darkinners said:
Use setcpu profile.
Make a profile in setcpu, set the rule to if over 40 degrees limited cpu from 200 mhz to 1000 mhz. Its very
Click to expand...
Click to collapse
I already have that with CPU Master Pro. But i want something more versatile.
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Overclocking

Hey guys will overclocking drain the battery quicker even with stock voltages?
Sent from my Nexus S using XDA Premium App

Different voltages are specified as stock for different frequencies. As the frequency changes, the voltage does too. Running 1200mhz with the stock 1000mhz voltage will probably cause instability and crashing.

Harrb, great post.
Sent from my Nexus S 4G using XDA App. Developer of brickROM, and OP of XDA Thread of The Year 2011.

And if increase voltage, the power consumption should also increase.

i haven't played with voltages yet but in my experience the benefits of overclocking are minimal anyway, and they make nexus reboot often and other bad things :/

With the right settings you can get a fully stable and functional overclock, but it is on a per-phone basis due to varying quality of the same CPU during manufacture.

Harbb said:
Different voltages are specified as stock for different frequencies. As the frequency changes, the voltage does too. Running 1200mhz with the stock 1000mhz voltage will probably cause instability and crashing.
Click to expand...
Click to collapse
Currently I'm using icup kernel speedy 5 clocked at 1.4 and its been extremely stable. So what your saying is that the voltages automatically increase when I select a higher frequency, because I did not change them manually.
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xmatrix13 said:
Currently I'm using icup kernel speedy 5 clocked at 1.4 and its been extremely stable. So what your saying is that the voltages automatically increase when I select a higher frequency, because I did not change them manually.
Sent from my Nexus S using XDA Premium App
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Click to collapse
Open NSTools and select Voltage tab. That's the list of "stock" voltages for each frequency.

suksit said:
Open NSTools and select Voltage tab. That's the list of "stock" voltages for each frequency.
Click to expand...
Click to collapse
Thanks
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A CPU governor such as on demand, lulzactive and lazy tells the CPU what clock to be at and automatically change. While reading, it will be at 100 or 200mhz, while playing a game it will be at the maximum clock you tell it to. Saves power this way.

your asian said:
i haven't played with voltages yet but in my experience the benefits of overclocking are minimal anyway, and they make nexus reboot often and other bad things :/
Click to expand...
Click to collapse
yes, usually 1 GHz is enough , UV or OC also may reduce hardware's physical life

[Q] Underclocking

Hi Guys,
I've been using custom kernel/ROM for sometimes now, and I hear a lot about overclocking.
And I know that overclocking is "not so good" for the phone. Was wondering whether the same applies for under-clocking also.
Oh, and 1 more question is about decreasing just the "Minimum CPU frequency" to something like 245MHz. Will that be bad for the phone?

neo4u said:
Hi Guys,
I've been using custom kernel/ROM for sometimes now, and I hear a lot about overclocking.
And I know that overclocking is "not so good" for the phone. Was wondering whether the same applies for under-clocking also.
Oh, and 1 more question is about decreasing just the "Minimum CPU frequency" to something like 245MHz. Will that be bad for the phone?
Click to expand...
Click to collapse
Our phone support overclocking to 729 max and min 320 if you underclock it your phone will be laggy and not responding . Those frequencies are the best for it and will not harm your phone.
Sent from my LG-P500 using Tapatalk 2

Christian Nothing said:
Our phone support overclocking to 729 max and min 320 if you underclock it your phone will be laggy and not responding . Those frequencies are the best for it and will not harm your phone.
Sent from my LG-P500 using Tapatalk 2
Click to expand...
Click to collapse
ya i know underclocking will definitely reduce performance. What if I keep the Max freq as 600MHz and reduce the Min freq to 245MHz. I just want to know whether it will harm my phone or not.

neo4u said:
ya i know underclocking will definitely reduce performance. What if I keep the Max freq as 600MHz and reduce the Min freq to 245MHz. I just want to know whether it will harm my phone or not.
Click to expand...
Click to collapse
No it will not harm your phone!

I'm using oc since the first week I owned my phone and it's running fine.So, min freq:480(it use the same freq as lower clocks and reduces wakelocks) and max:600 or more
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FPChaim said:
I'm using oc since the first week I owned my phone and it's running fine.So, min freq:480(it use the same freq as lower clocks and reduces wakelocks) and max:600 or more
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Click to expand...
Click to collapse
Actually the point of underclocking is to use a different frequency, 245 will use a lower frequency than 480. Also, frequency has absolutely nothing to do with wakelocks, 122 will have the same number of wakelocks as 806. You should set the minimum to whatever works for you, some people like 245, some people like 320, some people like 480. Underclocking can't damage the phone, so use whatever works for you.

bluespoon4 said:
Actually the point of underclocking is to use a different frequency, 245 will use a lower frequency than 480. Also, frequency has absolutely nothing to do with wakelocks, 122 will have the same number of wakelocks as 806. You should set the minimum to whatever works for you, some people like 245, some people like 320, some people like 480. Underclocking can't damage the phone, so use whatever works for you.
Click to expand...
Click to collapse
Are you sure...?Take a look on what fserve posted in his kernel thread:" NOT underclock below 480MHz. At lower speeds, wakeups-from-idle per second are bigger than 480MHz and they share the same voltage, so thats leads to more battery drain. It's recomended to use: MIN 480 / MAX YOUR CHOICE more about it: http://forum.xda-developers.com/showthread.php?t=999064 and here: http://forum.xda-developers.com/show...2&postcount=22"
Edit:link to his thread:http://forum.xda-developers.com/showthread.php?t=1227682
Edit 2ne link is broken and the other got abbreviated so you have to visit his thread
Sent from my LG-P500 using xda premium

FPChaim said:
Are you sure...?Take a look on what fserve posted in his kernel thread:" NOT underclock below 480MHz. At lower speeds, wakeups-from-idle per second are bigger than 480MHz and they share the same voltage, so thats leads to more battery drain. It's recomended to use: MIN 480 / MAX YOUR CHOICE more about it: http://forum.xda-developers.com/showthread.php?t=999064 and here: http://forum.xda-developers.com/show...2&postcount=22"
Edit:link to his thread:http://forum.xda-developers.com/showthread.php?t=1227682
Edit 2ne link is broken and the other got abbreviated so you have to visit his thread
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
I have been using MIN FREQ 245 for the past two days., and I got a better battery life

neo4u said:
I have been using MIN FREQ 245 for the past two days., and I got a better battery life
Click to expand...
Click to collapse
I'm using min freq 480 and my phone sleep very well too
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I use setcpu to set the clock to 122 - 320 while the screen is off and the phone sleeps very well but sometimes it freezes when I wake it up so I had to change it to 245 - 320 and evertyhing is fine now.

Nexus 5 Overclocking

OK, first of all I'd like to apologise for all the questions I keep posting. Im quite a noob with android, and coming from an iPhone, it's been a big leap. I'm just overwhelmed by the android system and how open it is! But I do all this cool stuff to my android like everyone else, although I don't wanna ruin a £350 phone by doing something stupid without guidance! (I'm just a big kid really! ) Which is why I keep posting questions, because it's hard to Google/Search XDA for this stuff...
Whenever I search XDA for 'Nexus 5 Overclocking' all I get is ROM threads, so this will be a thread for everything [under][over]clocking! Share your most effective results, and ask the pros questions!
I'll start it off...
I've Underclocked before, but now I wanna Terry out some heavy emulators (dolphin emulator, Nintendo 64 emulator ect.) But I don't think my phone is powerful enough to run these games full speed underclocked... I want to OVERclock it now, so which apps do I need to achieve this, how do I do it, and what are the most effective values for it?
Thanks,
Pro_Vickers.
Sent from my Nexus 5 using Tapatalk

The kernel defines whether or not you can overclock.
There is no real need to in the nexus 5 though.
If it is choppy at 2.3ghz then there is something wrong with the emulator.
In context I play final fantasy 9 on the psx emulator fpse using opengl graphics (which is limited to single core) and still get a constant 60fps
Sent from my Nexus 5 using xda app-developers app

ProVickers said:
I want to OVERclock it now, so which apps do I need to achieve this, how do I do it, and what are the most effective values for it?
Click to expand...
Click to collapse
Hi,
First you need a kernel with overclock (Franciscofranco, Trinity, ElementalX, etc...).
For the apps Franciscofranco have its own app (Francsico Kernel Updater-> FKU) and Trinity kernel also (Trinity Kernel Toolbox-> TKT), all available on the Play Store.
You can use a "generic" app like Trickster Mod, Play store too.
With the apps you choose your max CPU freq and it's done...
For overclocking there is no "most effective value" it depends of the voltage and what your CPU can handle. 2,4/2,5 Ghz seems reasonable (with some kernels you can go above like 2,8 Ghz).
Try a "safe" overclock first like 2,4/2,5 Ghz, and don't set the CPU freq "at boot" to avoid any problem like bootloop in case your CPU can't handle these freqs.
Maybe you'll need to raise a bit the voltage for these CP freqs, it depends of your CPU binning.
You can apply your settings at boot via the app when you are sure that all is stable (so after a few days of test with your use).
In any case you'll need to test in different situations to see if all is fine (hard and normal use)...

Alex240188 said:
The kernel defines whether or not you can overclock.
There is no real need to in the nexus 5 though.
If it is choppy at 2.3ghz then there is something wrong with the emulator.
In context I play final fantasy 9 on the psx emulator fpse using opengl graphics (which is limited to single core) and still get a constant 60fps
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I've Underclocked and it's choppy, but I know it's not the emulators fault because of the reviews, and I've played with it before I Underclocked... The problem is, I forgot how I Underclocked, so can you tell me how I clock it back to stock GHz?
Sent from my Nexus 5 using Tapatalk

P.S
I have Franco kernel so clocking shouldn't be a problem should it? Also can I use trickster mod for it? Thanks

viking37 said:
Hi,
First you need a kernel with overclock (Franciscofranco, Trinity, ElementalX, etc...).
For the apps Francisco have its own app (Francsico Kernel Updater-> FKU) and Trinity kernel also (Trinity Kernel Toolbox-> TKT), all available on the Play Store.
You can use a "generic" app like Trickster Mod, Play store too.
For overclocking there is no "most effective value" it depends of the voltage and what your CPU can handle. 2,4/2,5 Ghz seems reasonable (with some kernels you can go above like 2,8 Ghz).
Try a "safe" overclock first like 2,4/2,5 Ghz, and don't set the CPU freq "at boot" to avoid any problem like bootloop in case your CPU can't handle thes freqs.
Maybe you'll need to raise a bit the voltage for these CP freqs.
In any case you'll need to test in different situations to see if all is fine...
Click to expand...
Click to collapse
Hi,
I've Undervolted -75, so should overvolt or set it back to stock values so I can safely try out 2.5Ghz?
Sent from my Nexus 5 using Tapatalk

ProVickers said:
P.S
I have Franco kernel so clocking shouldn't be a problem should it? Also can I use trickster mod for it? Thanks
Click to expand...
Click to collapse
Re,
Yes you can overclock with Francisco's kernel and yes you can use Trickster mod...
ProVickers said:
Hi,
I've Undervolted -75, so should overvolt or set it back to stock values so I can safely try out 2.5Ghz?
Click to expand...
Click to collapse
Try with your undervolt...
But in first I would try with the original voltage, not necessary overvolting...
Try and see, only you can know if it will be safe or not...

viking37 said:
Re,
Yes you can overclock with Francisco's kernel and yes you can use Trickster mod...
Try with your undervolt...
But in first I would try with the original voltage, not necessary overvolting...
Try and see, only you can know if it will be safe or not...
Click to expand...
Click to collapse
All I can see in FKU is Max CPU frequency (960MHz), min (422MHz) and GPU frequency (320MHz) under GPU control... What do I tinker with to get it to 2.4GHz?
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ProVickers said:
All I can see in FKU is Max CPU frequency (960MHz), min (422MHz) and GPU frequency (320MHz) under GPU control... What do I tinker with to get it to 2.4GHz?
Click to expand...
Click to collapse
Re,
Max CPU at 960 Mhz
You only see this CPU freq? Maybe your phone is actually to hot and the CPU freq is decreased?
"Click" on Max CPU freq then scroll down to see all the CPU freqs...

viking37 said:
Re,
Max CPU at 960 Mhz
You only see this CPU freq? Maybe your phone is actually to hot and the CPU freq is decreased?
"Click" on Max CPU freq then scroll down to see all the CPU freqs...
Click to expand...
Click to collapse
Sorry, I mean that's what it's set at, I can see all of the frequencies, but which ones do I set?
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ProVickers said:
Sorry, I mean that's what it's set at, I can see all of the frequencies, but which ones do I set?
Click to expand...
Click to collapse
Ok...
Hum... you choose the one you want, you want to overclock so overclock. The stock CPU freq is 2,26 Ghz so if you go above this freq you overclock...
Maybe it's why "But I don't think my phone is powerful enough to run these games", like you said, if your max CPU freq was at 960 Mhz...?

Default the stock max freq will be 2260 MHz or 2.26ghz depending on how it's displayed.
I'd leave your undervolt as it is for now and just increase the max frequency and see if it becomes smooth for what you need
Sent from my Nexus 5 using xda app-developers app

viking37 said:
Ok...
Hum... you choose the one you want, you want to overclock so overclock. The stock CPU freq is 2,26 Ghz so if you go above this freq you overclock...
Maybe it's why "But I don't think my phone is powerful enough to run these games", like you said, if your max CPU freq was at 960 Mhz...?
Click to expand...
Click to collapse
Alex240188 said:
Default the stock max freq will be 2260 MHz or 2.26ghz depending on how it's displayed.
I'd leave your undervolt as it is for now and just increase the max frequency and see if it becomes smooth for what you need
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I know that my phone is fast enough (obviously, it's a nexus 5 beast!), and I know that I lowered my CPU frequencies, but it's just that I forgot what the defaults were, and how to change it. I know now, thanks you guys! P.S should I change my min frequency or is that fine?
Sent from my Nexus 5 using Tapatalk

ProVickers said:
I know that my phone is fast enough (obviously, it's a nexus 5 beast!), and I know that I lowered my CPU frequencies, but it's just that I forgot what the defaults were, and how to change it. I know now, thanks you guys! P.S should I change my min frequency or is that fine?
Click to expand...
Click to collapse
Ah ok, you should have explained it at the beginning... , you're welcome
Stock min CPU freq is 300 Mhz..., not sure you'll see any gain to set it to 422 Mhz...
Set it again at 300 Mhz and see...
In any case if sometimes you have a doubt about some stock settings, disable the set on boot option and reboot, all the stocks settings will go back. Or in FKU, App settings then clear data for FKU.