Develop Bugs

[KERNEL] smartass cmkernel 11/26/11]

This is based on the cyanogenmod kernel, with the main change being the smartass governor has been added and is default.
The zip file is in koush's anykernel format, so it can be flashed just like a rom.
Changes:
Smartass governor by erasmux is default
extra overclock enabled
patch #22 by farmatito
disabled CONFIG_SERIAL_MSM
NO SUPPORT WILL BE GIVEN. ONLY FLASH IF YOU KNOW WHAT YOU ARE DOING. NO ONE IS RESPONSIBLE EXCEPT YOU. BLAH BLAH BLAH.
Newest
2.6.35.14-oc-cm-smartass_g0dd6e8c.zip
source: http://github.com/dumfuq
old versions: http://www.mediafire.com/dumfuq

What does the smartass governor do?

mackster248 said:
What does the smartass governor do?
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Click to collapse
smartass governor - is based on the concept of the interactive governor.
I have always agreed that in theory the way interactive works - by taking over the idle loop - is very attractive. I have never managed to tweak it so it would behave decently in real life. Smartass is a complete rewrite of the code plus more. I think its a success. Performance is on par with the "old" minmax and I think smartass is a bit more responsive. Battery life is hard to quantify precisely but it does spend much more time at the lower frequencies.
Smartass will also cap the max frequency when sleeping to 352Mhz (or if your min frequency is higher than 352 - why?! - it will cap it to your min frequency). Lets take for example the 528/176 kernel, it will sleep at 352/176. No need for sleep profiles any more!
i googled it lol, seems like its a bit more responsive then interactive, and it ramps down quickly too. could give some battery savings

What ROM's will this work with?

keeps cpu at/above 768mhz, will not go below until you switch off smartass gov.
liking the "sleep" enhancement, but seems like it should let the processor scale on down to 245 when idle with screen on

I'm running this with CM7 Nightly #16 and it's running really well. I'm getting a little more battery consumption than I do with zinx's kernel, but that could just be because I've only been using the kernel for around 2-3 hours. It may need a little more time to settle? I'm not sure, but it is definitely snappier! If it does scale down the cpu during screen off, you can't tell at all! It doesn't have any lag when unlocking like setting profiles usually does. So I'm really stoked about this kernel! Great work as always Dumfuq! This will be my new kernel for at least a few days to give it more of a chance.
PS: I'm only getting around 29 on linpack at 1.017 GHz, where as with zinx's I was getting 38's. Smartbench scores are at 1320's for productivity and 1869 for gaming. So those both beat out zinx's kernel. Just wanted to put those out there so people have some kind of a comparison point.

posted a v2. The difference is frequencies are changed to match glacier frequencies instead of hero's.
The only noticable difference here is that when the screen is off the frequency scales between 245 and 368 instead of being stuck at 245.

dumfuq said:
posted a v2. The difference is frequencies are changed to match glacier frequencies instead of hero's.
The only noticable difference here is that when the screen is off the frequency scales between 245 and 368 instead of being stuck at 245.
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Click to collapse
Damn. Nice!

Works with evil's MIUI 1.1.26 r2..Hopefully battery life will increase now.
Edit: breaks video playback in miui

sl1k1 said:
Works with evil's MIUI 1.1.26 r2..Hopefully battery life will increase now.
Edit: breaks video playback in miui
Click to expand...
Click to collapse
Smartass is already compiled in.
Sent from my HTC Glacier

I use this on my GF's Mytouch Slide and she gets 20+ hr's on a charge overclocked @ 825. Was so hoping someone would port the kernal to this phone. thx dumfuq ^^

Trying to decide if I want to flash this over the stock cm7 kernel.
Has anyone noticed any gains from doing this? what about compared with the stock cm7 kernel + setCPU?

flashed this over build 16, cm7. I still use setcpu. no problems, everything is smooth like butter. Definitely smoother than it was before. no wake up problems, no play back problems. thanks for this =]

Does wifi calling also work with this? Anyone know?

brian6685 said:
Does wifi calling also work with this? Anyone know?
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Click to collapse
You could always flash it and find out, and if not, just restore the backup you made prior to flashing it. ;] I don't see why it wouldn't it hasn't broken anything for me.

K ill try it out later when I get home from work. Thanks

whats the mhz setting on this by default? not super fond of setcpu. though i do like this idea of a custom throttle and logic. so i figured if the mhz is high enough then i'll give it a shot.

brian6685 said:
K ill try it out later when I get home from work. Thanks
Click to expand...
Click to collapse
let us know what happens

here's my initial test of the v2 as far as battery goes...

looks like wifi calling works ;]
I've had great battery life with this kernel so far.

just rooted. help with cpu

ive only been rooted a day but can someone give me some advice on cpu speeds. assuming if i turn it up it will drain battery much quicker but whats a good speed to go for running cm7.

The stock HTC rom sets CPU speed to 1Ghz. So if you think your DHD was not fast enough, overclocking (i.e. moving the upper CPU frequency beyond 1Ghz) is a good option. Users here set the upper limit to either 1.2G, 1.3G, or 1.4G. 1.5G and above are not usually recommended because you may experence system hangs or reboot.
Overclocking not necessarily means larger battery consumption. Currrent custom kernels all use lower-than-stock voltages so the energy consumption is lower than that of stock. And the time CPU stays on the above-1G state in fact is not that much. You shouldn't worry about this.
ywliu
If you are satisfied with the original 1Ghz speed, and battery is your concern. You can lower the upper value to 800MHz or so to prolong battery use.
Also, CPU governor is another key issue. Choosing either Smartass/Smartass2, or On Demand usually is a safe bet.

great, thanks. i'll have a little play with the speeds and see what works. dont suppose you know if you can store more than one backup rom with rom manager/clockworkmod can you?

rhodri11 said:
great, thanks. i'll have a little play with the speeds and see what works. dont suppose you know if you can store more than one backup rom with rom manager/clockworkmod can you?
Click to expand...
Click to collapse
You can only backup Roms with cwm But you could keep the flashable zips. But that would mean a fresh install each time. Titanium backup maybe could help.
Sent from my HTC Desire HD using XDA Premium App

Is there any way to really monitor what's going on with my CPU?
I've installed SetCPU and checked my CPU limits, but it just doesn't feel to be changed. I've seen some posts about CPU figures just changing as figures, but the actual frequency remaining unchanged.

(Q)I have a og evo and cant overclock it 1.2ghz.

I have a og evo I want to know why when I overclock to 1.2ghz it freezes my phone why does it do that ?
Sent from my Nocturnal 4G using xda premium

Each Evo is different. Some of them can't handle that high overclock, or can't be undervolted very low. Each one is different, each has its limits.
I don't understand the big deal with overclocking. It burns your battery faster. I personally underclock, with little to no lag and is good enough for my casual gaming needs

Mine doesn't like a clock much at all. I can get about 1.1 before it starts locking up but even then it hangs a lot. I honestly don't see a difference from 1.0 to 1.2. Get a decent rom, good kernel and try out the v6 script an I almost guarantee you will like that better.

beaumontcali48 said:
I have a og evo I want to know why when I overclock to 1.2ghz it freezes my phone why does it do that ?
Sent from my Nocturnal 4G using xda premium
Click to expand...
Click to collapse
Well for us to be able to help you, you would need to provide us with more details on how you are trying to accomplish this.

I use no frils cpu but have also tried setcpu and viperMOD I know that's the best way to overclock but is very confusing. Have any step by step instructions to of to 1.2 I know having higher voltages helps as well.
Sent from my Nocturnal 4G using xda premium
Sent from my Nocturnal 4G using xda premium

Overclocking is overrated. If you need to overclock for every day usage, then something is wrong - at least in my opinion. Resource intensive gaming is different, but you shouldn't need to overclock for browsing, texting, casual games, etc.
Try out the V6 Supercharger script. I'm not currently using it, but have in the past and it seemed to make my phone more snappy. A lot of people swear by it and it's a great script, definitely worth a shot. There are other things you can do to speed up your phone without overclocking. I'd try other options first since overclocking will chew through your battery. Increase the dalvik vm heap size, there are plenty of free apps on the market to help with this task. Uninstall apps you don't use, I'll bet that you never use some of the apps on your phone. Back them up with Titanium Backup and you can restore them if you ever need them again.
In case you didn't already know, the Evo can't overclock past 1.2, I'm not 100% sure why - it has something to do with the processor.
Supersonic Evo 4G | MIUI | Tapatalk

I never oc over 1075 and only when plugged in if i play a game I need to oc.for I just activate my charging profile and plug up and play 1.2 ghz is a good chance of doing serious.damage as these older scorpion processors get very very hot at that clock speed so they lock up to try and protect themselves from heat damage or they shut down the phone 1075 is as high as you should need to go for any games the evo can handle on the subpar gpu
Sent from my Classic-EViLizED-ToMAToFiED-EVo4g-

beaumontcali48 said:
...also tried setcpu and viperMOD I know that's the best way to overclock.
..
Click to expand...
Click to collapse
I'm pretty sure viperMOD is more for undervolting than overclocking, which are not suppose to be combined together. I am running vipermod with max voltages - 50. Other nite was playing snes9x and was getting some lag with a game so I bumped max CPU up to 1.2. Phone went into a bootloop and had to superwipe and reflash everything. Don't know if its b/c vipermod + 1.2 CPU or just bumping up CPU. Didn't try it again.
Support TrevE!!

shift
Get a shift. Mine runs fine at 1.9. But usually run it art 254-1200 on demand.

{ParanoiA} said:
I'm pretty sure viperMOD is more for undervolting than overclocking, which are not suppose to be combined together. I am running vipermod with max voltages - 50. Other nite was playing snes9x and was getting some lag with a game so I bumped max CPU up to 1.2. Phone went into a bootloop and had to superwipe and reflash everything. Don't know if its b/c vipermod + 1.2 CPU or just bumping up CPU. Didn't try it again.
Support TrevE!!
Click to expand...
Click to collapse
You can overclock and undervolt together just fine. You just need to ensure that every frequency has a high enough voltage to run the processor at that step. My Evo is overclocked and undervolted just fine, although IIRC I can only push it up to 1.1 GHz . My tablet is 1ghz to 1.6ghz and is undervolted as well, though.

merge rls 2.0, iron monkey, Droid overclock because of the profiles options. I set up four profiles including one for temp. sometimes i'm underclocking and sometimes overclocking but only up to 1.19 to prevent freeze and boot loops. Only downside is right at open Droid overclock needs su permission but that is my choice since profile changes at open.
Very snappy afterwards.
Sent from my PC36100 using XDA Premium App

When I had the 4G, I was never able to go above 1118, or somewhere around that. It would have freezing issues.
On my evo shift, I was able to do 1.7 gHz (compared to stock 800 mhz) ok. 1.6 pretty reliabily, and I could run 1.5 all day long. Some guys could do 1.9. It just depends on the phone.

Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium

tommy0823 said:
Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium
Click to expand...
Click to collapse
Shoot the brutha a link
TrevE Supporter!

tommy0823 said:
Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium
Click to expand...
Click to collapse
What? Overclocking and undervolting are two completely different things, and they aren't mutually exclusive. Unless you can provide a good reason as to why it's counter productive to do both, I don't buy that at all. Just checked my phone, my overclock requires an extra 25 mV for all three steps I've overclocked. 25mV isnt much, and it certainly isn't going to kill my battery that much faster.
Besides, the only time the CPU is going to be entering these high power modes is when it needs to do work, and it's better to do work as fast as possible to go back to sleep. Would you rather wake up, do a mundane task for 5 minutes, then go back to sleep or wake up, do a task at 2x the speed while only consuming 30-50% more energy, then going back to sleep after only 2.5 minutes?
HUGI is real.
Sent from my Transformer TF101

Yea shot me the link too bro.
Sent from my PC36100 using xda premium

First let me say I don't use viper mod or any voltage controlling mod.
On sense 3.0 roms such as mikg I over clock to 1152 and set the minimum to 384 and its smooth as butter. No problem and battery lasts all day.
On aosp however such as decks (I'm on it now) I underclock to 499 and leave the min at 254. Smooth as always and battery lasts forever.
Anything past 1152 is going to cause problems (at least in my experience) also the rom/kernel can effect how much you can overclock.
Sent from my PC36100 using xda premium

Gary13579 said:
What? Overclocking and undervolting are two completely different things, and they aren't mutually exclusive. Unless you can provide a good reason as to why it's counter productive to do both, I don't buy that at all. Just checked my phone, my overclock requires an extra 25 mV for all three steps I've overclocked. 25mV isnt much, and it certainly isn't going to kill my battery that much faster.
Besides, the only time the CPU is going to be entering these high power modes is when it needs to do work, and it's better to do work as fast as possible to go back to sleep. Would you rather wake up, do a mundane task for 5 minutes, then go back to sleep or wake up, do a task at 2x the speed while only consuming 30-50% more energy, then going back to sleep after only 2.5 minutes?
HUGI is real.
Sent from my Transformer TF101
Click to expand...
Click to collapse
Its counter productive because it is giving less to something that needs more. (Don't take this post as me trying to be a ****. Just voicing how someone explained it to me a while ago)
Think of this as cars.
Lets say you have a nice fancy v8 mustang. Stock, everything is well, balanced.
If you start adding parts and get it pushing out 1000 horsepower (overclock) your most likely gonna need more feul (voltage) or at least stock amount flowing into the engine just to keep it running.
Now lets say you got that same 1000 horsepower gas destroying mustang and you start to lower the amount of gas flowing into the engine (undervolt (done in vipermod)) cylinders (CPU) wont get enough gas, it wont work, and your stuck going no where.
So if that made sense (did to me) then you can see why they are counter productive. Unless your using vipermod to overvolt (which idk if you can since I don't use it) then you can disregard this whole post
Sent from my PC36100 using xda premium

Your car analogy is completely irrelevant. You can look up the exact voltages that the CPU runs on at every frequency, *even when overclocking*. Overclocking an Evo 1ghz to 1.2ghz takes maybe a 5% bump in voltage, and that 5% extra power is only going to be used *when the CPU is running at max speed* (which is only when there is a lot of work to do), and even then, it's *still better to let the CPU run at max speed with a tiny bit more power consumption than to cap the CPU at a slower speed and make it work for even longer*. Intel calls it HUGI, Hurry Up and Get Idle.
I know what I'm talking about, and I wish people would stop trying to argue with me based off of second hand speculation. I do this for a living, after all. There is absolutely nothing wrong with overclocking and undervolting, and it's the best way to get the most battery life *and* performance out of your phone, period.
Sent from my Transformer TF101

Gary13579 said:
Your car analogy is completely irrelevant. You can look up the exact voltages that the CPU runs on at every frequency, *even when overclocking*. Overclocking an Evo 1ghz to 1.2ghz takes maybe a 5% bump in voltage, and that 5% extra power is only going to be used *when the CPU is running at max speed* (which is only when there is a lot of work to do), and even then, it's *still better to let the CPU run at max speed with a tiny bit more power consumption than to cap the CPU at a slower speed and make it work for even longer*. Intel calls it HUGI, Hurry Up and Get Idle.
I know what I'm talking about, and I wish people would stop trying to argue with me based off of second hand speculation. I do this for a living, after all. There is absolutely nothing wrong with overclocking and undervolting, and it's the best way to get the most battery life *and* performance out of your phone, period.
Sent from my Transformer TF101
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Click to collapse
Hmm, *interesting*. I believe the best answer to the OP was covered rather well earlier. It's all about your rom/kernel/hardware combination. With all the variables to consider as relevant, your best bet is to experiment and find what works for your device. Don't check set on boot untill you are confident the set-up is stable. Higher is not always better with overclocking. My device runs blazingly well underclocked @768max. Gets insanely great battery @499max. However my quadrants are better @ 1036 than at 1190.
Great thing about android is you can experiment and learn through trial and error.
Sent from my PC36100 using xda premium

overclocking - my questions for understanding

So I thought about overclocking. I never overclocked any CPU by now. No PC cpus, no mobile cpus
I just always read: Do not overclock! More heat production, more energy costing and of course: probably decrease device life-time and may damage the phone.
On the opposite there is: more cpu-power. WFS seems to be able to get OC'd to 800 MHz (which is 200 above standard and only 200 below Desire)
So, what can you tell me about the above conclusions?
Next question: Do I need overclocking, or is it just to win a p.... length comparing ?
I'm on stock European rom 2.3.5. I know I need custom kernel. which one I could use, how to flash? Which apps do I need furthermore?

theq86 said:
So I thought about overclocking. I never overclocked any CPU by now. No PC cpus, no mobile cpus
I just always read: Do not overclock! More heat production, more energy costing and of course: probably decrease device life-time and may damage the phone.
On the opposite there is: more cpu-power. WFS seems to be able to get OC'd to 800 MHz (which is 200 above standard and only 200 below Desire)
So, what can you tell me about the above conclusions?
Next question: Do I need overclocking, or is it just to win a p.... length comparing ?
I'm on stock European rom 2.3.5. I know I need custom kernel. which one I could use, how to flash? Which apps do I need furthermore?
Click to expand...
Click to collapse
No it's not just for a pissing contest.
Jikantaru's new kernel will allow you to set your clock to vary between 120 Mhz and 806 Mhz although 787 Mhz tends to work for those unlucky enough to have phones that freeze up at 806 Mhz.
The CPU doesn't run balls out all the time. It speedsteps as needed to save battery power.
You flash the kernel that you download to your SD card through CWM Recovery's Install zip from SD card feature.
Reboot and you now have Ext4 support for Link2SD, etc, and overclocking capabilities as well as a host of other kernel tweaks to handle memory management, etc.
As far as programs to set the clock with? SetCPU, Rom Toolbox, Nofrills CPU, Antutu CPU, etc.
I would choose "Smartass" as your governor and 120 and 806 as your min and max CPU settings and choose to set it at boot.
That's just my preference.
I personally bought Rom Toolbox Pro and manage the CPU settings through it.
It's got a host of other cool features all in one place and jrummy updates it very often with new fixes, features, etc.

thanks for that.
so what about damaging the cpu or the device? is there nothing to worry about?
and what is a govener? do I need it in addition to setcpu ?

theq86 said:
thanks for that.
so what about damaging the cpu or the device? is there nothing to worry about?
and what is a govener? do I need it in addition to setcpu ?
Click to expand...
Click to collapse
The governor is the method by which the phone plans it's stepping up and down of frequencies. Smartass is a tried and true good combination of power savings and stepping to the plate with high clock frequencies when needed.
No you won't need anything extra. It's one of the settings in any of those programs.

Sorry for asking again:
It won't damage my device or burn the cpu as overclocking a normal PC CPU would do?
edit: using nofrills now. Seems to work.

theq86 said:
Sorry for asking again:
It won't damage my device or burn the cpu as overclocking a normal PC CPU would do?
edit: using nofrills now. Seems to work.
Click to expand...
Click to collapse
Overclocking comes with no promises man. Mine's been overclocked since August so that's all I have to go on.

There is always a danger or risk when overclocking. The manufacturers determine the safe frequencies, temperatures, voltage, etc. based on scientific experiments in different environments. However, with that said, obviously, they are not infallable either. The best way to determine your risk is to think about what conditions you'll be using it in the most and what kind of stress it'll put on your phone's internals. Do some research and see what other people have problems with and under what kind of stress was the phone. Use common sense. Things like raising voltage and frequencies raise the temperature of the phone's internals, also. So, in turn, do you also have a case on the device that retains heat? Do you live in an humid/dry or warm/cold area? Do you do a lot of multitasking? Are you constantly on it? Hope this helps.
Sent from my myTouch_4G_Slide using XDA App

[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
Click to expand...
Click to collapse
How much battery life can you save using setCPU?

lamenramen said:
How much battery life can you save using setCPU?
Click to expand...
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