Database Develop

[Q] Benefits of OC/UV

What are the benefits of OC/UV (particularly for CM7)?
I know of improved performance due to OC, but what does UV do in regards to performance. Also, how does an OC/UV kernel compare to one without the option?

your processor doesn't need as much voltage as the stock settings--undervolting lets you save battery
personally i want to know.. do you have to UV to OC?

xredjokerx said:
your processor doesn't need as much voltage as the stock settings--undervolting lets you save battery
personally i want to know.. do you have to UV to OC?
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You can do either or both but don't have to do both. At some point UVing will cause a crash. Right before that point it can cause performance issues. See the link below for instructions on how to find an optimal UV level to maximize battery savings and performance.
http://forum.xda-developers.com/showpost.php?p=10936691&postcount=1102
OCing improves speed but can also cause stability issues. For a captivate this usually isn't a problem until you get past 1.2 ghz. After that, it depends on the kernel but I have yet to find a kernel that is completely stable past 1.2 ghz under stressful conditions. Samsung designed the processor to handle 1.2 ghz and in theory it can go up to at least 1.6.

Like everyone before me has said, OC will make your processor work more (which will eat up more battery, and send the temps a bit higher).
UV is a way to "fix" that problem by controlling the voltage used by each Mhz/Ghz range. The mini guide that QuarkGluonSoup posted is a great way to start off.
Most Captivates start have random errors past 1.2Ghz, but the highest I've seen (stable) are 1.4Ghz.

venomio said:
Like everyone before me has said, OC will make your processor work more (which will eat up more battery, and send the temps a bit higher).
UV is a way to "fix" that problem by controlling the voltage used by each Mhz/Ghz range. The mini guide that QuarkGluonSoup posted is a great way to start off.
Most Captivates start have random errors past 1.2Ghz, but the highest I've seen (stable) are 1.4Ghz.
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Odd as it sounds, my battery life on CM7 is close to 50% better when it is OC'ed to 1.2 ghz and UV'ed than it was on the froyo ROMs under the same conditions.

That really is odd :S I think I'll try it myself.

Cyanogen8

Cyanogen 8? Is this next? Or is this in the works? Also is 2.3.5 next and would it be numbered a different version when Ice Cream comes out? Also is anything coming from the devs to overclock to 800 yet?

cell2011 said:
Also is anything coming from the devs to overclock to 800 yet?
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It's been done. So very very few phones are even stable at 800, and those that could generally performed worse in benches at 800 than at lower clocks. Many of these devices bootloop above 700.

Cyanogen 8 will not come out yet since will most likely be ice cream sandwich. I am not even sure is 2.3.5 will even come out and no the devs can not overclock this device to 800mhz because is 768 is the limit of the processor. Most people's phones do not even run that smoothly at 768 anyways. If somehow the dev found a way to overclock it to 800 (impossible btw but this is just a what if kind of statement) since the processor can not handle 800 it would just overheat the thing and cause crashes.

Also, on a side note, this should not be in the Development section. This should be in general or Q&A

This belongs in Q&A for future reference.
CM8 will be next, obviously. It will be based on Ice Cream Sandwich, so no, it won't be in development until ICS is released to AOSP so that the CM team can start using that code. 2.3.5 is an update coming out soon for the Nexus S 4G that fixes wifi and network speed, as well as adding more secure NFC for Google Wallet. It won't really affect us when it is merged into CM7. ICS is expected to be Android 4.0, but it could be 3.5 if Google decides.
There is a kernel that goes over 800Mhz, but anything over 768Mhz can be unstable on some phones. I tried it and there were no real performance gains, but battery life was a lot worse. Performance was actually worse at the highest CPU clock, in my experience. Just stick with 768Mhz. It's stable and chances are that you can get even better performance at a lower clock. I get better battery and performance at 633Mhz. It all depends on each unique phone.

rizdog23 said:
Cyanogen 8 will not come out yet since will most likely be ice cream sandwich. I am not even sure is 2.3.5 will even come out and no the devs can not overclock this device to 800mhz because is 768 is the limit of the processor. Most people's phones do not even run that smoothly at 768 anyways. If somehow the dev found a way to overclock it to 800 (impossible btw but this is just a what if kind of statement) since the processor can not handle 800 it would just overheat the thing and cause crashes.
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I lol'd at this statement. Did you not read any of the posts above you?

When i began to post there were no posts yet. They must have got posted while i was typing. So seeing as the only post at the time was the op, then yes i did read the post(s) above mine.....

There is a kernel that goes over 800Mhz, but anything over 768Mhz can be unstable on some phones. I tried it and there were no real performance gains, but battery life was a lot worse. Performance was actually worse at the highest CPU clock, in my experience. Just stick with 768Mhz. It's stable and chances are that you can get even better performance at a lower clock. I get better battery and performance at 633Mhz. It all depends on each unique phone.
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I can confirm that the Godmode kernel was able to push some phones, such as mine, past 800Mhz. Although I had a faster processor speed, my battery would drain incredibly fast as well as overheat. Even though I never hit a bootloop with the kernel, the battery life, overheating, and loss of performance kept me away. Sacrificing too much for having a faster processor speed. Normally I overclock to about 729Mhz and have great battery life, speed and performance in conjunction with a min of 19Mhz and a smartass governor.
Sent from my Hero that never dies! ;D

dastin1015 said:
I can confirm that the Godmode kernel was able to push some phones, such as mine, past 800Mhz. Although I had a faster processor speed, my battery would drain incredibly fast as well as overheat. Even though I never hit a bootloop with the kernel, the battery life, overheating, and loss of performance kept me away. Sacrificing too much for having a faster processor speed. Normally I overclock to about 729Mhz and have great battery life, speed and performance in conjunction with a min of 19Mhz and a smartass governor.
Sent from my Hero that never dies! ;D
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Click to collapse
Thanks. I am glad someone at least confirmed it. I never knew about the godmode kernel as ive only been here for a little bit. Sorry for misinformed post about their not being an 800mhz kernel. As I can see, i was wrong, but also I was correct in saying that the processor can not handle it....sometimes

rizdog23 said:
Thanks. I am glad someone at least confirmed it. I never knew about the godmode kernel as ive only been here for a little bit. Sorry for misinformed post about their not being an 800mhz kernel. As I can see, i was wrong, but also I was correct in saying that the processor can not handle it....sometimes
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Yup, I'm at 806 - 19 ondemand while posting this and I can already feel it slowing down a little. 729 - 19 on demand is my best setup. I've tested a lot with trying higher setups than that but so far 729 seems to be the best for battery life and performance on every rom I've ever tried
Sent from my HERO200 using XDA Premium App

rubyknight said:
Yup, I'm at 806 - 19 ondemand while posting this and I can already feel it slowing down a little. 729 - 19 on demand is my best setup. I've tested a lot with trying higher setups than that but so far 729 seems to be the best for battery life and performance on every rom I've ever tried
Sent from my HERO200 using XDA Premium App
Click to expand...
Click to collapse
For some reason my phone never works well with higher clock speeds no matter what rom or kernel i use. I get my best results at 710-352 performance.

In before bierce gives birth over ANOTHER question being in the dev section
Sent from my Android using Tapatalk

rizdog23 said:
For some reason my phone never works well with higher clock speeds no matter what rom or kernel i use. I get my best results at 710-352 performance.
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Click to collapse
Correct me if I'm wrong, but from what I've noticed is that newer Hero's that were sold with Eclair as opposed to the original Donut, when I bought mine, are not able to reach those higher processor speeds past 691Mhz.
Sent from my Hero that never dies! ;D

i bought mine at radio shack back in september and it was still on 1.5 and ive never been able to get over 768mhz without it freezing and bootlooping its different with every hero.
i stay at 352-691 ondemand and thats plenty fast for me

Mine was running 1.5 also and it will run fine at 768 but battery life suffers so I usually run at 352/710 and battery and performance are good (depends on rom kernel)
Where can I get the godmode kernel ....
Sent from my HERO200 using XDA App

I actually got mine two weeks after it came out.....so i mean it could just be that this phone is dead now. I never had a refurb or anything. I got it wet once but it got repaired. I've only had this one the whole time. Do you think that is the issue?

rubyknight said:
Yup, I'm at 806 - 19 ondemand while posting this and I can already feel it slowing down a little. 729 - 19 on demand is my best setup. I've tested a lot with trying higher setups than that but so far 729 seems to be the best for battery life and performance on every rom I've ever tried
Sent from my HERO200 using XDA Premium App
Click to expand...
Click to collapse
Hey rubyknight,
just wondering why 19? Ive seen people do that but can the processor really ever do anything at 19? if so, doesnt it affect stuff like wake. Im trying it now just to see for myself. Ive been playing with a really high min value between 480 and 576 with the high at 748 and it actually doesnt only seems to affect battery life a little, both on the .29 and .35 kernels on jaybobs roms and on OMFGB.
Thanks

chalan30 said:
Hey rubyknight,
just wondering why 19? Ive seen people do that but can the processor really ever do anything at 19? if so, doesnt it affect stuff like wake. Im trying it now just to see for myself. Ive been playing with a really high min value between 480 and 576 with the high at 748 and it actually doesnt only seems to affect battery life a little, both on the .29 and .35 kernels on jaybobs roms and on OMFGB.
Thanks
Click to expand...
Click to collapse
It depends on the cpu governor that you use.
nandroids are for
sissies

ch1naski said:
It depends on the cpu governor that you use.
nandroids are for
sissies
Click to expand...
Click to collapse
so update, ive run it at 19/768 on demand all day and after 11hrs 13 min its at 60% thats not bad for my phone! and there was almost no performance difference. Just the slightest UI lag... this is on jaybobs 7/8 with the .29 kernel, with background data off. And my regular usage which is not a lot. but for me its good. i wish I had tried it ages ago.

chalan30 said:
so update, ive run it at 19/768 on demand all day and after 11hrs 13 min its at 60% thats not bad for my phone! and there was almost no performance difference. Just the slightest UI lag... this is on jaybobs 7/8 with the .29 kernel, with background data off. And my regular usage which is not a lot. but for me its good. i wish I had tried it ages ago.
Click to expand...
Click to collapse
I believe that you can set the ramp up frequency and that may help with the lag. Setcpu, advanced settings, I think?
nandroids are for
sissies

[Q] Nook color overclock.

Hello
I recently acquired a nook color and i am going to install cynogen mod 7.1 and google apps from clock work recovery method, but i want to overclcok to 1.2 or 1.3 ghz, i understand that cynogen mod has an overclock facility built in, the part i am not sure about is to reach 1.2 ghz or 1.3 ghz do i have to use dalingrin overclock kernel to achieve these speeds, or is it possible in cynogen mod 7.1 without the kernel.
Any info would be appreciated.
Regards
Mark

Dal's kernel has been included in there for a while now. If you use 7.1 stable to later nighlies you are definitely safe.

ok, thats great, thanks for the reply, appreciated.
Regards
Mark

It appears the GPU may run best at 1200, even thou the CPU can do up to 1300.

It certainly seems to be true that going past 1200 can slow down graphic intensive operations. I am guessing that's probably because the graphics processor has to run at a ratio of the CPU and going past 1200 ends up with a lower graphics frequency.
But depending on the type of applications used there can be benefit in going higher and most Nooks seem to be capable of 1350. This can be seen in two different benchmarks. Quadrant gives significantly higher scores at 1350 than 1200 whilst the graphically more intensive Nenamark is slower at 1350 then 1200.
I ended up using 1200 anyway as it feels fast and probably also helps with battery life.
Check the voltage settings as well as these can normally be lowered a bit to help again with battery life. I use the one's originally quoted by Dal and don't have any stability issues. ( 09.25 / 1.05 / 1.2 / 1.275 / 1.325)

I did a comparison of 1200 and 1350 MHz with the Sunspider JavaScript bench. 1350 is faster but frankly I have a hard time telling the difference between even stock clock and 1350 in actual practical usage.
The most obvious speed boost I've found is running 16bit color. Big difference in browser scrolling performance.

Is overclocking it fully safe?

GuTsaV said:
Is overclocking it fully safe?
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Click to collapse
From the standpoint that breathing in a metropolitan area is not fully safe, no it is not.
I use the stepper built-in to 7.1 stable and have never given it a second thought.

Try nook color tweaks.
Sent from my [R3] BLURR3D DROID BIONIC using XDA App.

GuTsaV said:
Is overclocking it fully safe?
Click to expand...
Click to collapse
I have run at 1200 / 1350 for the last 4 months and it has been stable and I have not seen any real detectable difference in battery performance or in how warm the device gets. The governor means that a lot of the time the Nook is running at lower clock speed anyway.
I don't recollect seeing any reports of damage on this forum to the Nook through over-clocking. Increasing voltages from the stock values on the other hand is probably not a good idea. There may possibly be longer term effects from overclocking but I'd guess the effect on lifetime is small enough that most people will have changed their device before it is significant.

GuTsaV said:
Is overclocking it fully safe?
Click to expand...
Click to collapse
Being that Nooks CPU is underclocked by default. It is very safe.
---------------------------------
Sent from my LG Optimus V using Tapatalk

[req] GPU overclock

I'll put more in this request thread later but for now has anyone put any work into over clocking the GPU? Like through a custom kernel?

This isnt the correct thread, there its a Q & A section.
Sayin that, you think its necesary? The phone no have any lag or something like that, it doesnt need overclocking on my opinion!

Sorry will request it be moved but just for gaming and the tiny stutters. I'd like to smooth the experience fully. I'm developing a kernel that should do so but I'm a newb so I wanted to get any advice I could. Im currently throwing frandom and smartass into my kernel. Along with over clocking the GPU like people did for the nexus 4.

CurbThePain said:
Sorry will request it be moved but just for gaming and the tiny stutters. I'd like to smooth the experience fully. I'm developing a kernel that should do so but I'm a newb so I wanted to get any advice I could. Im currently throwing frandom and smartass into my kernel. Along with over clocking the GPU like people did for the nexus 4.
Click to expand...
Click to collapse
I've fiddled with GPU overclocking, but it seems like Moto X can't handle even a slight 50 MHz GPU overclock. :/

I got GPU clock and voltage control to work, can be overclocked to 500mhz, anything more than 400mhz makes the UI stutter though. It can probably be fixed/tweaked easily, i won't put any effort on it because i don't use the phone as a gaming device. If you manage to fix the stuttering let me know.
https://github.com/gustavoss/kernel-msm/commit/1ab02a864136c317a423825bf7557129e445430c
https://github.com/gustavoss/kernel-msm/commit/b47accc58919021d8eeaa6bbfd7f6a038076ee7c
https://github.com/gustavoss/kernel-msm/commit/61649cd36f8e6079baeb31456bbdd884cfbe2533
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/sbin/ext/post-init.sh#L9
http://i.imgur.com/z9c7sgo.png
Voltage control works perfectly, just be careful, anything less than -50mV will probably freeze the device.
I use synapse app by AndreiLux to control my custom kernel, my scripts to control the gpu can be found here:
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/res/synapse/actions/gpufreq
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/res/synapse/actions/gpuvolt

Gustavo_s said:
I got GPU clock and voltage control to work, can be overclocked to 500mhz, anything more than 400mhz makes the UI stutter though. It can probably be fixed/tweaked easily, i won't put any effort on it because i don't use the phone as a gaming device. If you manage to fix the stuttering let me know.
https://github.com/gustavoss/kernel-msm/commit/1ab02a864136c317a423825bf7557129e445430c
https://github.com/gustavoss/kernel-msm/commit/b47accc58919021d8eeaa6bbfd7f6a038076ee7c
https://github.com/gustavoss/kernel-msm/commit/61649cd36f8e6079baeb31456bbdd884cfbe2533
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/sbin/ext/post-init.sh#L9
http://i.imgur.com/z9c7sgo.png
Voltage control works perfectly, just be careful, anything less than -50mV will probably freeze the device.
I use synapse app by AndreiLux to control my custom kernel, my scripts to control the gpu can be found here:
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/res/synapse/actions/gpufreq
https://github.com/gustavoss/kernel-msm/blob/stable/out/ramdisk/ramdisk/res/synapse/actions/gpuvolt
Click to expand...
Click to collapse
That's what I got to too. Kind of a waste of time in the end since the phone is kind of unusable in the end.

One plus 3 overclock to max possible power

Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark

gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
But why is that needed?

Cobalt Cresent said:
But why is that needed?
Click to expand...
Click to collapse
U can overclock with elementalX.
Next time search before post

matze19999 said:
U can overclock with elementalX.
Next time search before post
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Click to collapse
I already knew that? I'm not the OP. I were simply just asking why a OC is needed. That's all

I mean @gersdvges

Because oc improve games and apps loading

matze19999 said:
u can overclock with elementalx.
Next time search before post
Click to expand...
Click to collapse
but elementar x only can overclock to 2.2 ghz
i know that snapdragon 820 can be oc over 2.2 ghz

>2016
>SoC's are as powerful as older PC's
>someone stiil needs OVER90000 GHZ OC COZ ANTUTU GOES FASTA

CraZY_BoY^ said:
>2016
>SoC's are as powerful as older PC's
>someone stiil needs OVER90000 GHZ OC COZ ANTUTU GOES FASTA
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Click to collapse
This +1000

This phone/CPU/GPU handles almost all content the Play Store can throw at it with ease. You may have slight FPS drops with the odd game, but you are not going to rewrite history gaining 4fps from a marginal over clock and even then you'd be better over clocking the GPU not the CPU anyway.
I agree with others. This obsession with Antutu scores is utterly pointless. And overclocks are a monumental waste of battery in the form of heat.
This obsession is almost as annoying as the folk that don't use any apps and wake their screen every now and then too increase screen on time, to then boast that they managed 12hours SOT.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app

gersdvges said:
Because oc improve games and apps loading
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Click to collapse
That is false... The storage solution is what makes things Load quicker and what governor/io scheduler youre using. Over clocking is useless and trust me I know, I've over clocked every phone of mine until I realized all it does is cause instability, less battery life and more heating. The only viable over clocking is the GPU.

gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
Are you retarded? The phone's already super fast. But no, MUH MAXIMUM POWER FOR ANTUTU!

gersdvges said:
Anyone is able to do a kernel ( possible based on cyanogenmod) with overclock support?
If is possible, add the maximum overclock on snapdragon 820...
This will get us more performance and higher benchmark
Click to expand...
Click to collapse
I agree