Now that ics is out and working great on the transformer (i have a sl101 myself but same thing basically) and being able to force
the gpu to do the 2d stuff i thought it might be worth a shot to make a kernel with lower clock speed like 500-600 mhz max
and lower voltages maybe its also possible in the kernel to lower the wifi strength to get the absolute max battery life.
Other kernels are all for more speed so battery life isnt as great as stock.
Im no programmer or would know how to do this myself else id try but it seems like a feasable idea if anyone wants to try,
now we can force the gpu to do the 2d stuff the cpu should be able to go lower without a performance hit.
so good idea or bad? lol
If you're using another kernel, you can already set the min-max speeds if you want to underclock. Some of them allow undervolting too.
Sent from my Transformer TF101 using xda premium
No i run stock as that seems to be most stable and best battery life.
I know a custom kernel can be underclocked with additional program but im guessing more can be done when
compiling your own kernel but im not too sure.
Related
Does anyone know of some good apps (preferably free) that I can use to overclock a rooted droid charge, with the latest altered beast ROM and kernel?
There aren't any overclock kernels at this point. Its being worked on. Just be patient.
Fe_Man said:
Does anyone know of some good apps (preferably free) that I can use to overclock a rooted droid charge, with the latest altered beast ROM and kernel?
Click to expand...
Click to collapse
You can try tegrak from the market if you really want oc.
In all honesty, just wait for a kernel to come out that will actually oc. I'd love a kernel that uses voltage control and will wait for that...
Ahh, thanks. This is my first android device so I have no idea what to expect and when
If I can ever get my config straightened out, I was going to look into doing an OC kernel that uses Voltage Control, similar to nemesis2all's kernels for the Fascinate. Still trying to get a working config though.
My opinion though is that OCing the hummingbird processor is useless, and does little for performance on a day-to-day basis and only serves to give you big numbers in benchmarks while reducing battery life.
I mostly used the 1120 step skipping 1000 and scoring serious uv was awesome
I am running Cognition 4.4.8, which will not allow OC/UC. I actually just want to UC. What recommendation would you have for a kernel compatible with Cognition 4.4.8 for Captivate that would allow me to UC?
Don't you mean oc/uv? I don't think you know what you are talking about.
Yeah its UV (undervolt). Find any kernel that allows it and is working with your ROM. Maybe ask in that thread as others could be using a custom kernel for that exact reason.
Sent from my SGH-I897 using XDA Premium App
UC is a real term, maybe he meant he wants to limit his clock speed to 800mhz. What's that called if not UC?
Although undervolting and underclocking to save battery is a waste of time. The cpu doesn't use that much battery in the first place, the screen and the modem use the most power, you want the charge to last switch to the lowest brighteness and 2g, that will give way more battery than uc/uv will.
studacris said:
UC is a real term, maybe he meant he wants to limit his clock speed to 800mhz. What's that called if not UC?
Although undervolting and underclocking to save battery is a waste of time. The cpu doesn't use that much battery in the first place, the screen and the modem use the most power, you want the charge to last switch to the lowest brighteness and 2g, that will give way more battery than uc/uv will.
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Click to collapse
+1 on the battery topic. Even at a high OC the battery drain is not that much worse... a little yeah but not too severe.
Also good point about UC.. wasn't thinking about that at all ..underclock what!?!?
some people falsely think that the phone runs at 1ghz all the time, when in fact it downclocks itself and ramps up clockspeed when it needs it....so unless you have an app thats using 100% CPU all the time, your phone is running around 200mhz at idle.
Pirateghost said:
some people falsely think that the phone runs at 1ghz all the time, when in fact it downclocks itself and ramps up clockspeed when it needs it....so unless you have an app thats using 100% CPU all the time, your phone is running around 200mhz at idle.
Click to expand...
Click to collapse
+1 again Although there are different governors that do different things most phone at stock will idle down to 200mhz. My phone for instance idles down to 800mhz, but thats just my prefrence
Yep, I meant OC/UV. I typed too fast for my own good!
Good points
Thanks for the message on how little battery undervolting saves. That was quite helpful. I did try the discussion board for Cognition, but no one seemed to be posting on using an alternate kernel, which is why I asked for recommendations here.
I believe Cog is KB1 based, so this kernel should work: http://forum.xda-developers.com/showthread.php?t=988805
Thanks I will certainly trie eXist's kernel.
Ernesto47 said:
Thanks I will certainly trie eXist's kernel.
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If you want the best battery life, I suggest something other than cognition. In my experience, i9000 based custom roms get better battery life.
Sent from my CM7 powered captivate
@sixstringsg I notice that you are using Cyanogenmod. I keep looking at that, but since it was still not listed as stable, I was not sure whether to try it. How are you finding the stability?
I want to make sure I'm not trippin', I've searched all thru the dev forum, and I don't see a non overclocked kernel. everyone complains about battery life but they are using a kernel that wasn't geared for battery life. oc kernels are for performance and bragging rights. we need a stock kernel with uv and ram optimization along with battery optimization mods
Sent from my Desire HD using XDA App
boimarc89 said:
I want to make sure I'm not trippin', I've searched all thru the dev forum, and I don't see a non overclocked kernel. everyone complains about battery life but they are using a kernel that wasn't geared for battery life. oc kernels are for performance and bragging rights. we need a stock kernel with uv and ram optimization along with battery optimization mods
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
Why not just not overclock? Also, the kernel that comes in Inspired Ace isn't overclockable.
There are many battery saving options! If you have the Leedroid kernel, in setcpu you have the option of running your proccesor at Powersave, performance,smartass and so on...this is also in a few other kernels but I am not sure which ones at the moment.
And if you are really hyped up on saving battery, shutoff haptic feedback, turn of data when you are not using it, lower screen brightness, Use a task killer to kill stray apps(if you were playing angry birds kill it afterwards).
These are a few things you can do that will increase your battery life significantly...
With an overclock capable kernel, you can underclock. I run mine at 921 MHz and don't notice any performance hit. I've tweaked the undervolt to as low as I can get away with. I get pretty awesome battery life that way.
Before you ask, I'm using a kernel I compiled myself from HTC's latest linux source for the Inspire. It's essentially stock with only the addition of the frequency table and hooks for OC/UV.
Gene Poole said:
With an overclock capable kernel, you can underclock. I run mine at 921 MHz and don't notice any performance hit. I've tweaked the undervolt to as low as I can get away with. I get pretty awesome battery life that way.
Before you ask, I'm using a kernel I compiled myself from HTC's latest linux source for the Inspire. It's essentially stock with only the addition of the frequency table and hooks for OC/UV.
Click to expand...
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This.
Simply underclocking will solve your problems. I prefer to run @1.4 Ghz. I have everything optimized for speed & efficiency and still don't lose in battery performance.
Running CM7 with LordMod UE 2.6 kernel and smartass CPU governor, I can set the max speed to 768mhz with very little performance hit noticed. I might just keep it that way, haven't decided yet. Scrolling is still smooth, Angry Birds is still smooth. The cool thing about running max 768mhz with the pinky undervolt script is the CPU voltage never goes above 900mv.
I'm running CM7 with nightly 91 and on my Vibrant, they made a kernel that was stock uv no oc and u could use it all day, literally....
Sent from my Desire HD using XDA App
So I have...
My G2x Is running at 1gz\.4 I don't find a need to OV it...
The UV is set at -50 at 1gz and at 800 it is -100 and at 500 and 400 at -200mv.
What are your sets? I would like to see other people's choices. I will report on my battery life later. I can't today since I have been going into recovery mode all morning.
Ps. As profiles go...
I have screen off set to 800/400. I don't like it lagging when i turn my screen on.
I can run stress test easily with my settings. No hiccups or anything.
EDIT:
So I was asked what kernel I'm using... I will post my ROM + KErnel! and just to let you know, my G2x has never had any problems so that may be way my G2x can get -200 on 500 and 400
And I am using faux's CM7 Kernel Version 0.2.4
Full name:
"2.6.32.41-CM7-Faux123-v0.2.4
Mod version
CyanogenMod-EagleBlood_v1.2
Im new to setcpu, good thread for me to learn a bit more from other users...
Sent from my LG-P999 using XDA App
Yes I'm trying to decide on SetCPU or PimpMyCPU so any info is appreciated
GManLynx said:
So I have...
My G2x Is running at 1gz\.4 I don't find a need to OV it...
The UV is set at -50 at 1gz and at 800 it is -100 and at 500 and 400 at -200mv.
What are your sets? I would like to see other people's choices. I will report on my battery life later. I can't today since I have been going into recovery mode all morning.
Ps. As profiles go...
I have screen off set to 800/400. I don't like it lagging when i turn my screen on.
I can run stress test easily with my settings. No hiccups or anything.
Click to expand...
Click to collapse
What kernal are you using?
GManLynx said:
So I have...
My G2x Is running at 1gz\.4 I don't find a need to OV it...
The UV is set at -50 at 1gz and at 800 it is -100 and at 500 and 400 at -200mv.
What are your sets? I would like to see other people's choices. I will report on my battery life later. I can't today since I have been going into recovery mode all morning.
Ps. As profiles go...
I have screen off set to 800/400. I don't like it lagging when i turn my screen on.
I can run stress test easily with my settings. No hiccups or anything.
Click to expand...
Click to collapse
How are you not getting reboot problems with 400 at -200mv? I'm using faux's froyo kernel and when I undervolt at -100mv i get rebooting problems
I replied to your comment in my main post, since other people may be interested in that and that will cause them not to scan the pages.
Bump :\ I would like input
so how is your battery life?
Bad. Something about those settings messed it up. I much prefer just using the custom rom default kernel its much better on the battery
Sent from my LG-P999 using XDA Premium App
My chip could only use faux's OC 1.2ghz, using the kernel OC 1.5 would cause my phone to boot loop. I could go stable @ faux OC 1.2 with minimum UV, getting qudrant score of atleast 3000 - 3500. Another kernel that i tried is MOrfic's, I can go stable up to 1.4 Ghz/minimum UV- quadrant of atleast 4000-4300. I believe i have what they say as the "weak chip" though running OC @ 1.4 ghz doesn't make it look weak. Thanks to the great DevS!
Howdy folks. Could someone point me in the right direction? Thinking about overclocking but have not done it. What are the benefits / rewards?
Is there an app or program i can to do this?
And what is a safe range?
Thanks in advance!
Sent from my intergalactic space modulator using XDA App
Benefits : Faster phone, smoother ui
Cons: Phone may heat up if overclock is set too high
For this phone 1500 is the highest, safest number we can get to right now. I would suggest setCPU, which you can find on XDA for free. (search setCPU)
You'll need a new kernel first, the stock one doesn't support oc. Go with Faux's assuming you're running a rom compatible with it (and most are).
After that, download Pimp My CPU from the market and you're good to go.
Sent from my Nexus Prime using XDA Ultimate App
To be honest with you, I notice hardly, if any, real-world phone speed increase when I overclock...barring benchmark numbers. I'm not really sure why that's the case for me, and why for some others it's such an extremely obvious difference (or so they claim). Perhaps I'm not running the same cpu intensive apps that they run. But for general, day to day, running of my phone, it's just not worth it for me due to the battery cost.
So I would love to hear from some of you where "precisely" do you see such a marked improvement on the speed of your phone?
Well, first off, make sure you have a custom Recovery installed... Then find a ROM you'd like, and then, flash a custom OC Kernel..
You'll need an app such as SetCPU to control the overclock.
mmapcpro said:
To be honest with you, I notice hardly, if any, real-world phone speed increase when I overclock...barring benchmark numbers. I'm not really sure why that's the case for me, and why for some others it's such an extremely obvious difference (or so they claim). Perhaps I'm not running the same cpu intensive apps that they run. But for general, day to day, running of my phone, it's just not worth it for me due to the battery cost.
So I would love to hear from some of you where "precisely" do you see such a marked improvement on the speed of your phone?
Click to expand...
Click to collapse
Are you using the stock launcher? It's alot smoother with the stock launcher if OCed to 1500, although i don't notice a difference from 800 to 1500 on launcher pro.