I am trying to get the best battery life out of my device, but I am unsure what the best settings are for the kernel I use. I am using Chads newest from June 27th. Should I leave the kernel running at the stock speed 998 for max and then 128 for min? Or would you save more battery underclocking the max speed? If so, how much should one underclock it to?
Thanks for any help.
Your best bet is try different settings. I set my min at 128 and max i'll set it at the lower 900 or mid 800 settings for normal use to save battery life. If im playing a game i over clock it.
Using 844 max myself and never had an issue playing games. I've seen others underclock in the 600-700 range too. Just see how low you can go without sacrificing stability.
Related
Hey all. I'm using Xtreme Kernel and SetCPU and I'm wondering what are decent limits to downclocking and overclocking the processor. 1.3 GHZ is the SetCPUs max, but I feel 100MHZ would be too low to downclock to. would 300-400 MHZ be a good downclock limit? Specifically for low battery life profiles?
I shoot for 200-300mhz at the low end if I am running > 1ghz
Phone runs flawlessly with 200 at the low end. 100 causes too many problems.
Are you using a stock kernel to overclock or underclock or a custom kernel?
I was uable to find kernels for this phone.
Are there any?
Thanks
There were several different custom kernels for 2.1.
Can you name a few of the best ones and are there any for 2,2
Xtreme Kernel its the kernel I'm using. I many by limit as in high end limit. I ended up just trying it and 400 mhz is useable for low battery profiles.
Sent from the Zanpakuto using XDA app.
Sent from my PC36100 using XDA App
http://forum.xda-developers.com/forumdisplay.php?f=652
I've had my phone overclocked 15% for months now...I pre-ordered and picked it up on June 4th (the day they were released to the public) and it's never been replaced. I rooted it right away using the engineering hboot method, and I immediately went to a rooted stock rom with a kernel that'd allow overclocking the very first time I saw one posted on this forum. I've never been able to run it at anything higher than 1152 mhz, but I've also never had any stability issues at 1152 mhz. I also allow it to go as low as 128 mhz all the time.
Since then I've played with various roms, and various kernels, but the first thing I've done when changing any rom or kernel, is always set the min and max CPU speeds again, and decide which governor to use. I've also always played with the undervolting strategies, from static to HAVS, and I've always been able to get away with the most agressive stuff posted without any stability issues.
Your mileage may vary, but thats been my experience with an overclocked Evo. I will admit I can barely notice the performance difference from 998 mhz to 1152 mhz, but I actually notice a battery life improvement...get it done faster so the CPU can go back to idling at a low frequency as soon as possible mentality I guess.
please watch what you say here. its not going to get you any help to curse and swear at other members. last warning
@MikeOD, which governor and what governor parameters have you found to work best for you?
I think the whole overclock boils down to what you do with your phone. If nothing overly cpu intensive, then there's likely to be little gain in the amount of saved time.
I actually have mine under clocked at 921 Mhz (came that way in the rom initially). UI was fluid enough and everything still seemed to work well/responsive. I get slightly better battery life too. Noticeable in the rate the batt % declines during active tasks (web browsing).
Hi, just wanted to know what is original HTC's ROM CPU scaling range and what is its CPU governor. My guess is 245-528, ondemand - is that correct?
Sorry, I don't know myself, but I'd like to know this too! I've just installed JokerDroid on mine, and I want to set it to stock frequencies so I can improve the battery life.
I'm using 352-691 ondemand, but I think 748 is ok too.
I think the min is 352MHz. But again, I am not so sure. (I arrived at this value when I was on the Stock ROM and used Android System Info which shows the various CPU frequencies and the time periods they operate on that frequency)
zigee said:
I'm using 352-691 ondemand, but I think 748 is ok too.
Click to expand...
Click to collapse
Isn't the max. for this device "528"
xXxeXtreme said:
Isn't the max. for this device "528"
Click to expand...
Click to collapse
Custom ROM's (Or, more appropriately - Custom Kernels) allow you to set a CPU Speed upto 768MHz.
BUT - The performance increase is not as great as the speed increase shows. So, if you do overclock, don't keep huge expectations.
zigee said:
I'm using 352-691 ondemand, but I think 748 is ok too.
Click to expand...
Click to collapse
I am running on 710 max, some people run on 768 max. But apparantly it is phone related because some people can perfectly run on 768 whilst I read a few days ago from a person here whose wildfire started force closing things around 710 or one higher or so.
Try a bit yourself which works for you. There are benchmarks that you can let run to see how often an error will occur approximately I have no link myself but I know a bud of mine did that to try how high he could go
At 691, some apps force closed, so I'm back to 595. It was stable for me.
gues that the 352MHz is the stock minimum then. There should be a noticable battery life increase when 122MHz is my current IDLE clock huh?
Now Iam running 122-710MHz on stock HTC ROM, very stable. If I set the frequency above 710MHz the scaling become unstable uner LOAD sometimes and dropping to 480MHz.
Using jacob kernel v4.
This is really strange and probably even stranger to complain about but I want to understand.
I UV on my Note and so far managed to drop to levels I find hard to believe.
200MHz - 600mV
300MHz - 600mV
400MHz - 600mV
500MHz - 600mV
600MHz - 600mV
700MHz - 600mV
800MHz - 600mV
900MHz - 600mV
1000MHz - 600mV
1100MHz - 600mV
1200MHz - 975mV
1300MHz - 975mV
1400MHz - 1000mV
1500MHz - 1050mV
1600MHz - 1100mV
Why is my note able to run at 600mV on all frequencies up to 1100MHz??? At first I thought it was a reporting error and It wasn't really running on those voltages but found breaking points on higher frequencies so eliminated that theory. :silly: Would be to be able to test these frequencies at even lower levels. Anybody know a tool that can do it?
This is the process I followed:
Set the voltage value in STweaks,
Set the max MHz in STweaks to the frequency for which I just dropped the voltage ,
Close STweaks,
Open Voltage Control to confirm that the voltage and max frequency has really been set,
Close Voltage control,
Reboot,
Open Voltage Control again to confirm that the voltage and max frequency is really set,
Close Voltage control,
Reset timings in Android Tuner Free,
Start Stability - Classic Test and verify that the Note is running at the max frequency,
Open some other apps and play around for a while,
Get Stability Test back to foreground and go to sleep (if it is time to sleep)
For all of the above frequency values i ran the Stability Test overnight for at least 4 hours plus for a couple hours while using the phone. Didnt get a single freeze or reboot. The only issue was that while I had it on max 200 MHz the Note was not usable while the 300 and 400 MHz frequencies were annoyingly slow. 500 MHz and up is bearable even with Stability Test running.
Attached are the last status and test screenshots. The Stability Test has been running while I been also using it for calling, messaging, adjusting other app setting and taking screenshots.
I check the frequency timings in Android Tuner Free and it is usually 1-4% on offline, 95-98% on the tested frequency and sometime 1% on the frequency just above the tested one. All other frequency times usually 0%
Any ideas if something funny is going on or is this Note just unbelievably under-voltable???
MutantWizard said:
This is really strange and probably even stranger to complain about but I simply need to understand.
I UV on my Note and so far managed to drop to levels I simply cant believe.
200MHz - 600 mV
300MHz - 600 mV
400MHz - 600 mV
500MHz - 600 mV
600MHz - 600 mV
700MHz - 600 mV
800MHz - 600 mV
Rest of the frequencies are still at stock values
First I copy pasted some UV setting from another post and the Note ran without Issues. Then I started dropping a little bit here and there and at some point got some freezes and reboots but couldnt figure out which frequency was the issue so I returned all to stock and started one by one from 200 MHz. The above is where I got to so far and simply need to understand why or what is happening.
This is the process I followed:
Set the voltage value in STweaks,
Set the max MHz in STweaks to the frequency for which I just dropped the voltage ,
Close STweaks,
Open Voltage Control to confirm that the voltage and max frequency has really been set,
Close Voltage control,
Reboot,
Open Voltage Control again to confirm that the voltage and max frequency is really set,
Close Voltage control,
Reset timings in Android Tuner Free,
Start Stability - Classic Test and verify that the Note is running at the max frequency,
Open some other apps and play around for a while,
Get Stability Test back to foreground and go to sleep (if it is time to sleep)
For all of the above frequency values i ran the Stability Test overnight for at least 4 hours plus for a couple hours while using the phone. Didnt get a single freeze or reboot. The only issue was that while I had it on max 200 MHz the Note was not usable while the 300 and 400 MHz frequencies were annoyingly slow. 500 MHz and up is bearable even with Stability Test running.
Attached are the screenshots of the process at 800 MHz and the Stability Test has been running for almost six hous while I been also using it for messaging, adjusting other app setting and taking screenshots. After about 5 hours of 100% CPU load at 800 MHz the Note is down to 80% battery. Not really sure but it seems quite low power consumption.
I just checked the timings again in Android Tuner Free and 12% on offline, 86% on 800 MHz. All other frequency times 0%
Any ideas if something funny is going on or is this Note just unbelievably undervoltable???
Click to expand...
Click to collapse
1st thing, my STweaks is ver 1.1 but looks a bit different than your screenshots, pls confirm that.
2nd, I too like to underclock but had no idea you could push it as far as you . It's kind of like driving a car low on gas to see how far you can go.
3rd What ROM & kernel you on? I'm on X-Note 3.3 with Adam kernel.
Last, here's a screenshot of my undervolting...I'm kinda embarrassed compared to yours Note the differences in layout of STweak menu.
I'm inspired to go even lower now, my battery life is pretty awesome but I think I can squeeze it more.
tweeny80 said:
1st thing, my STweaks is ver 1.1 but looks a bit different than your screenshots, pls confirm that.
2nd, I too like to underclock but had no idea you could push it as far as you . It's kind of like driving a car low on gas to see how far you can go.
3rd What ROM & kernel you on? I'm on X-Note 3.3 with Adam kernel.
Last, here's a screenshot of my undervolting...I'm kinda embarrassed compared to yours Note the differences in layout of STweak menu.
I'm inspired to go even lower now, my battery life is pretty awesome but I think I can squeeze it more.
Click to expand...
Click to collapse
My STweaks is also 1.1 and guessing the menu difference might be due to different kernel. I am on RedPill, stock ROM and probably irrelevant but TWERP as well.
I have mixed feelings about the achieved UV. Very happy if it is true but suspicious that there is some kind of a reporting error and that I am actually not under-volting it at all.
I will soon update the OP since I have now been now testing the 900 MHz for the last 3 turns. Started at 900 mV then droped to 800 mV and now already running it for a couple hours at 700 mV. I just cant believe that its actually at at this voltage and running without issues.
MutantWizard said:
My STweaks is also 1.1 and guessing the menu difference might be due to different kernel. I am on RedPill, stock ROM and probably irrelevant but TWERP as well.
I have mixed feelings about the achieved UV. Very happy if it is true but suspicious that there is some kind of a reporting error and that I am actually not under-volting it at all.
I will soon update the OP since I have now been now testing the 900 MHz for the last 3 turns. Started at 900 mV then droped to 800 mV and now already running it for a couple hours at 700 mV. I just cant believe that its actually at at this voltage and running without issues.
Click to expand...
Click to collapse
Hmm yes, because you're going so low, it begs the question is the app reading accurate? I mean, you're reeeaaaal low. Would be good for a more knowledgeable person to chip in and give us feedback.
One thing - in your screenshot it shows your max frequency capped at 800MHz. To me that reads you are running only at 50% power. If so, that explains your insane battery life. From steps 900 and above you've left voltage at stock because they're unused. right?
tweeny80 said:
Hmm yes, because you're going so low, it begs the question is the app reading accurate? I mean, you're reeeaaaal low. Would be good for a more knowledgeable person to chip in and give us feedback.
One thing - in your screenshot it shows your max frequency capped at 800MHz. To me that reads you are running only at 50% power. If so, that explains your insane battery life. From steps 900 and above you've left voltage at stock because they're unused. right?
Click to expand...
Click to collapse
Yes higher frequencies still at stock and not used but will be getting to them at their own time. Fact though is that even with cap at current 900 MHz and with Stability test running I can still use the Note normally for any regular tasks. If I don't play games I would never need more speed.
Now updating the OP with the 900 MHz setting and screenshots.
BTW I just realized I added to battery life when transferring screenshots by connecting the Note to the laptop by cable. Battery life still remains to be seen.
Updated the OP with the full range of voltages 200-1600. I don't OC so those will not be doing. But I still have the original question.
Is it possible???
Gets more and more strange. GPU under-clocking and under-volting of following frequencies working for days without any usage issue. I changed the minimum and maximum MHz to include the below frequencies and didn't notice any difference in the Note behavior / performance. When running the stability test with GPU testing included I don't get any errors if running under 2 hours but if I leave it overnight the test does crash at some point in time without any other ill effect. I only know that it crashed coz it disapears and it tells me it crashed when the next day I re-start the test.
54MHz - 600mV
108MHz - 600mV
160MHz - 600mV
266MHz - 600mV
350MHz - 600mV
The fact though is I don't understand what to expect as an issue when under-clocking or under-volting the GPU.
Mate, you're still at it!?
Rereading your data, I strongly suggest you post these stats in whatever thread belongs to the kernel and/or tuner app you're using.
My overseas Singaporean work colleagues would say 'cannot be, cannot be.....'
tweeny80 said:
Mate, you're still at it!?
Rereading your data, I strongly suggest you post these stats in whatever thread belongs to the kernel and/or tuner app you're using.
My overseas Singaporean work colleagues would say 'cannot be, cannot be.....'
Click to expand...
Click to collapse
Yea slowly trying one by one new settings and letting it run for a while so that when I go to the next setting and experience an issue I am sure its the newest setting that's causing it.
Thanks will do as suggested.
Has anyone tried to undervolt his Note 8?
I'll be undervolting my N5110 soon...
So, am I the first one to it or what?
Please share your sets.
Here's my settings. I run CivZ ROM with built-in kernel
I messed with the same rom... yes I undervolted and overclocked and done as much as I could do. Went back to 4.2.2 stock and still get about the same performance, and battery life. One thing that I could not live without, is my 64gb SD card. Too many issues with FAT32 and my music and video files. EXFAT is the only way to go with 64gb SD cards. With my stock ROM, I get 8 to 10 percent every hour, and 15 percent every hour playing HD video through miracast to my TV.
I'm doing it right now, following this guide (not as closely as I should, most likely).
@Alastor_ru : how did you get your values? Mine are generally lower, besides the fact that Voltage Control allows 850 mV as a minimum.
Thanks, but what about the higher freq's voltages
I think that you have up to 1.9 GHZ or 1.8 at least
@bradipovsky, that's the same guide I will follow
bradipovsky said:
@Alastor_ru : how did you get your values? Mine are generally lower, besides the fact that Voltage Control allows 850 mV as a minimum.
Click to expand...
Click to collapse
I use SetCPU, it has 600mV as a minimum.
I perform several steps while set voltage to lower and lower values and stop to play with it, when I get my current settings. As I noticed, the biggest power eater is the screen, so undervaluing doesn't bring the big savings
AhmadLight said:
Thanks, but what about the higher freq's voltages
I think that you have up to 1.9 GHZ or 1.8 at least
Click to expand...
Click to collapse
I don't use the highest freq's, cause it's not needed for me. I limit the highest CPU freq to 1GHz.
Alastor_ru said:
I use SetCPU, it has 600mV as a minimum.
I perform several steps while set voltage to lower and lower values and stop to play with it, when I get my current settings. As I noticed, the biggest power eater is the screen, so undervaluing doesn't bring the big savings
I don't use the highest freq's, cause it's not needed for me. I limit the highest CPU freq to 1GHz.
Click to expand...
Click to collapse
Well, 8" of screen of course don't help the battery I'm doimg it mainly to limit the heating, so high frequencies are the most important. I think it's a better option than underclocking, but that's just my opinion.
I'll share my values later, but I don't think they're ideal yet.