yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Original Development] z1gackly:
Probably not then, you still have to modify the code to enable init.d support in AOSP source. Will give this a go anyway for the battery saving. Thanks for your work.
[Nexus 7 Original Development] bcvictory:
I will test it and put the results in my 'Best Kernel' thread. Very interesting...
[Nexus 7 Original Development] clemsyn:
Thanks, would be very interested in your result
[Nexus 7 Original Development] clemsyn:
Thanks, would be very interested in your result too ;)
[Nexus 7 Original Development] jamesst20:
Thanks you for your hard work. I will test it soon :)
[Nexus 7 Original Development] bcvictory:
I got 7 hours, 20 minutes on my battery test. Check my thread for more info.
[Nexus 7 Original Development] bobloadmire:
Saw that, that's well below stock, what do you think is happening?
[Nexus 7 Original Development] leelaa:
To much undervolting will decrease battery life. The op just needs to find the Sweet spot ;)
[Nexus 7 Original Development] aLPaSLaN07:
Which is what Google has most probably done already :)
[Nexus 7 Original Development] pinoyto:
I know what happened...

Look at his thread..

Clemsyn makes a request on 9/24/12 10PM in his thread

He posts here on 9/25/12 0138AM saying he will test (not he is testing)

He posts his results for this kernel on 9/25/12 0330AM on his thread

I make a comment about the result at 0538 AM 9/25/12

THAT IS NOT EVEN SEVEN HOURS!!! LOL.............

something fishy going on with testing.
[Nexus 7 Original Development] bcvictory:
Okay. I can explain.

I tested for the first 10% of battery drain. Then multiply the time by 10. Then I posted the first results. I kept it running and it got almost exactly the amount I posted.
[Nexus 7 Original Development] pinoyto:
Your post indicates testing till it is dead (and I assume from full charge). Not multiply. So results should have been posted after 07 hours and 20 minutes and not before to show credibility.
[Nexus 7 Original Development] bcvictory:
Yeah I know. I have done a lot of these long tests before and 9/10 this way works. I still finish them just to be sure.
[Nexus 7 Original Development] leelaa:
Battery is not consistant when draining in use. Ie being at 100% can last longer than 99% or 40 down to 30% can last longer than 50 down to 40%. I can last from 100% down to 90 in 1 hour 10 minutes. But i dont get over 10 hours screen on time even though i use it evenly through the day.

Hope you understand what i am saying.

I like what you are doing but you need to test better. Maybe go from 100 to 50% then times by 2 for example.
[Nexus 7 Original Development] pinoyto:
I say results should have been posted after 07 hours and 20 minutes. The credibility of the result will always be in question since it was not the way you indicated (full charge till battery is dead and not MULTIPLY). So "finishing them" will also be in question.

---------- Post added at 03:01 PM ---------- Previous post was at 02:59 PM ----------

I agree with leelaa here ;)
[Nexus 7 Original Development] bcvictory:
No, totally get what you guys are saying. Totally got too excited and posted early. I apologize. Saying that, the result I got is the same as the one I posted. Next time I will test all the way.
[Nexus 7 Original Development] pinoyto:
Users look at your results and decides accordingly and posting results that was not tested as you said "Till its dead" but instead was done by "multiplication" is just wrong.

Me, as a user, will take your results with a grain of salt.
[Nexus 7 Original Development] DroidMaster18:
Dude's. Chill. He apologized and said that the results of the 'till dead' test ended up being the same. Now he knows better, Just drop it and move on.

Sent from my Eclipsed DX2
[Nexus 7 Original Development] clemsyn:
That is not good LOL. Ill wait for a few more inputs before I tweak this kernel a bit more.
[Nexus 7 Original Development] clemsyn:
Hey, no apologies needed... we get too excited sometimes and make mistakes ;) If you know what I mean. A retest will be appreciated though.
[Nexus 7 Original Development] noneabove:
I suppose I can install this and give it a shot.. :) I'll have to figure out a good way to do it though cause I like using my tablet but want to test this the whole way down XD If I decide I can live without a charged tablet tomorrow I might do it overnight (just set up a video camera or something..)

Is there anything in particular you would like as the variables for the test clemsyn ? 720p video is already being done, I can do anything else, like run a games video or something, or run some benchmark ? Let me know :)
[Nexus 7 Original Development] pinoyto:
Oh, I moved on, but since his results posted was not the procedure that he claims he does, then even the "being the same" is very much in question. I have moved on though.
[Nexus 7 Original Development] bcvictory:
I assure you that this was the only test I did this way. If the results had been different I would let people know.
[Nexus 7 Original Development] chasmodo:
I have been testing the kernel until from full charge it got down to 50%, so these results might be slightly more indicative of the battery life one might expect.

Rom: Asylum AOKP

Governor: Ondemand

Scheduler: Noop

Total running time: 12h 45min

Onscreen time: 4h 13min (consisting mostly of XDA and Interweb browsing, some movie watching)

Kept awake for apprx another hour listening to music (BT) while riding my bicycle

Battery level after all of the above: 50%

Sreenshots:
[Nexus 7 Original Development] Hai_Duong:
I tested the kernel today all the time and its fantastic!!!!

Since 10o'clock I was using my nexus 7 without putting standby mode!!

Video calling ong google+ 3h long.

Watching 1h30mins YouTube.

3hours browsing on Google Chrome.

17:30 o'clock Result: I have still 27% battery :D I think its awesome.

Sent Form my Nexus 7.
[Nexus 7 Original Development] NickS VR4:
So far I love it. Stable and great on battery. Nothing intense so far, but with basic browsing, 1hr 5mins took 8% battery with total time off charger at 3.5hrs. Used it yesterday as well without issue. Obviously not an extensive test, but happy at how stable it is.
[Nexus 7 Original Development] clemsyn:
Great results so far!! Thanks for testing! That video call is a definite Battery drain...so great results.
[Nexus 7 Original Development] Kenny987654321:
Can you tell us what your exact undervolts are in this kernel?
[Nexus 7 Original Development] Metallice:
Can you read the first post?
[Nexus 7 Original Development] chasmodo:
Everything was well yesterday, but this morning I had a SOD. Too low deep sleep voltage for my N7, perhaps?
[Nexus 7 Original Development] Kenny987654321:
Yes I can read. But the first post says that voltages have been lowered to the lowest possible; and I am wondering what that is. If you use another kernel to undervolt the same way you may go lower, or should I say to low, and I'm trying to avoid doing so.
[Nexus 7 Original Development] clemsyn:
It is possible but try wiping the dalvik cache and see if you still have issues.
[Nexus 7 Original Development] pinoyto:
ok here are my own results so far with daily usage of more than 24 hrs. This is with mostly internet browsing, gaming of dead trigger and cut the rope, internet video, camera usage and news reading. The norm that I use. Comparing to the short time I had the stock kernel, definitely better battery life than stock. Great Job.
[Nexus 7 Original Development] kr0n1c:
Wow I have noticed considerably better battery life. Its been 27 hours since I unplugged at 100% charge. I'm now down to 64% after surfing, videos and music. Amazing job thank you!
[Nexus 7 Original Development] Metallice:
Fine. I'll copy and paste from the first post.

2. CPU voltages are default to maintain stability but it shines in undervolting the other aspects of the device, ie: pll_c, memory, emc, host1x, GPU 2d/3d bus etc...

2. vdd_core/vdd_rail decreased voltage from 1.2 to 1.1mv

3. emc, pll_c, host1x, GPU decreased from 1.2 to 1.1mv
[Nexus 7 Original Development] bill3508:
SOD here running Rasbean. 51/1100.

Sent from my Nexus 7 using Xparent Blue Tapatalk 2
[Nexus 7 Original Development] brfsa:
either you are just a rude or you just think you are funny.

what kenny must have meant are what the voltage levels are for example 25-50 mv for 900Mhz, etc..

the op post does not explain that, it says 1.2 to 1.1mv, what is that mean for undervolting apps? it must mean something but it's not so clear. so what he asked makes sense and i also would like to know.

just pisses me off to see people like you acting like you know everything.
[Nexus 7 Original Development] Kenny987654321:
Yes, thank you. You understand exactly what I am asking.
[Nexus 7 Original Development] dSlice:
This kernel is awesome! Phenomenal battery life! Kudos again!
[Nexus 7 Original Development] Metallice:
Neither. Frustrated. Especially when two people fail to read the OP. The answer to that question is number 2 in the list. CPU voltages are stock. Also stated in number 1 of that list is that these values cannot be changed by undervolting apps as the sysfs interface is probably not included.

As said in number two in the first post, the CPU voltages are stock. Also you can't change them so it doesn't really matter much anyway. If you really want to know you can download Franco or Faux or Motley andsee what the voltages are (assuming they haven't modified the default values).
[Nexus 7 Original Development] friedsonjm:
For someone who travels frequently, long plan rides, this 'battery saving' kernel is great; that being said, I would be very convenient if it could be combined, to the extent practical, with the other side of the equation by allowing for overclocking, with appropriate voltages, and whatever else is realistically possible, from 1400 - 1600 or 1700. Maybe the 'two faced' kernel?
[Nexus 7 Original Development] fordthunder:
I can't seem to find the answer. So I'm going to ask mine ..

I installed the kernel on the las test build of EOS ROM and it boots for only a minute or so and then reboots. Never ending.

Any ideas ? I tried clearing cache and DV , even fixed permissions for the heck of it.
[Nexus 7 Original Development] clemsyn:
Some devices have better Tegra builds so I believe your device is just unable to handle the undervolts.
[Nexus 7 Original Development] masterchif92:
but usb OTG is implemented in this kernel?
[Nexus 7 Original Development] Rafase282:
I think it is supported on the stock kernel, but you will need an app to use it.
[Nexus 7 Original Development] bill3508:
Love the kernel. I have had 3 SOD which hurt my stats some but I love the kernel still.

Sent from my Nexus 7 using Xparent Blue Tapatalk 2
[Nexus 7 Original Development] toe451:
Nice work..... any chance you could add cifs to this ?? Thanks....
[Nexus 7 Original Development] getbuzzin:
Great job, kernel is awesome. I usually only get about 7 hours of screen time on other kernel but was able to get 8 using this one.
[Nexus 7 Original Development] ganja5000:
Nice work

First off nice kernel. I saw good results in benchmarks, and no hiccups in real life test.

I did notice a problem. I was browsing in chrome and the tablet froze, requiring force reset.

Once again, great kernel. How did you do that brightness thing? I would like to do it separate of the kernel if possible.

.
[Nexus 7 Original Development] Rody2k6:
I play games likes Dead Space, Bard's Tale, Asphalt 7 , Shadowgun THD, and also do some eReading - will this kernel actually lessen the perfomance of the games I play since it is a battery saving kernel?

Thanks
[Nexus 7 Original Development] chasmodo:
Why don't you flash it, find out and then tell us, mate?
[Nexus 7 Original Development] Xcutionr:
What he said! :)
[Nexus 7 Original Development] Prey521:
Great kernel and I def experienced better battery life, however, I'm just too used to Trinity Kernel's speed and smoothness, so I had to go back. But for those that are seeking better battery life and don't mind the loss of some performance, then this is the kernel for you!
[Nexus 7 Original Development] z1gackly:
Of course you could always have the best of both worlds and flash the battery saver when you're going out or trinity when you're staying at home ;)
[Nexus 7 Original Development] Mungulz:
4 hours battery on trinity, 8-9 on this, amaaaazing battery life. I won't update my kernel from this until the N7 gets outdated, slow and needs OCing to keep up.
[Nexus 7 Original Development] DexterMorganNL:
I have been using this kernel now for 1 day on 14 hours and I'm now on 18% and I had 6 hours and 25 mins screentime, I did some browsing, many reading and little time gaming.

Jut mostly no heavy usage, expect the gaming which of course using more battery, but general I feel battery usage with this kernel is very good.
[Nexus 7 Original Development] bill3508:
My last full charge had 4 days 16 hrs with 6.5 hrs screentime. I have mine set at 102-1200. Was getting reboots running 51-1100. Excellent kernel.

Sent from my SCH-I535 using Xparent Blue Tapatalk 2
[Nexus 7 Original Development] irishrally:
Yes.
[Nexus 7 Original Development] DexterMorganNL:
This kernel gives me a great battery life, I can see it doesnt use much in standby and screentime is much longer then compared with stock.
[Nexus 7 Original Development] meomeo986:
Great kernel! But can you guys suggest me a good gorvenor to use? Or Interactive as default is the best?
[Nexus 7 Original Development] genetic608:
While still maintaining performance, ondemand gives me the best battery life. But I prefer interactive :D

Totally up 2 you tho!
[Nexus 7 Original Development] jewnersey:
This kernel is great. I don't need to keep performance high so I just sit back and let this baby sip my battery. Thanks
[Nexus 7 Original Development] jewnersey:
Can we expect an upgrade to this kernel for 4.1.2?
[Nexus 7 Original Development] Xcutionr:
+1!
[Nexus 7 Original Development] chasmodo:
Of course we can. Just be patient; good things come to those who wait.:)
[Nexus 7 Original Development] Udonitron:
Looks like I might have to get on this...do I just flash it over the current kernel I am using?
[Nexus 7 Original Development] yhbrandon:
That will work just fine
[Nexus 7 Original Development] minnieman:
Hey, this kernel is awesome! But I upgraded to 4.1.2, any chance you can get this kernel to work on 4.1.2?
[Nexus 7 Original Development] johnnyvol:
+1

I keep checking this thread for an upgrade. Loved this kernel before I upgrade to 4.1.2. I'm sure Clemsyn's working on it.
[Nexus 7 Original Development] minnieman:
I sure hope so... It doesn't feel the same only getting 7 hours instead of about 2 days of battery life. :crying:
[Nexus 7 Original Development] bill3508:
Still rockin it.

Sent from my Nexus 7 using Xparent Blue Tapatalk 2
[Nexus 7 Original Development] meomeo986:
Im not sure if this is the right place to ask for this, but Im currently running this cool kernel, and im not having good battery life. Checkin BetterBatteryStats, I found out in Partial wakelocks section that Since unplugged, a wakelock called: Sidekick_CalendarIntentService (com.google.android.googlequicksearchbox.Google Seach) are running 8.5 hours out of 9hours since charged, and my N7 now only have 50% battery left.

Could anyone plz be so kind to help me on how to get rid of it?
[Nexus 7 Original Development] clemsyn:
Will try to update it when I get my HD replaced. It crashed on me while upgrading wifi on Gtab kernel. BTW, anyone has the link for source of the updated kernel?
[Nexus 7 Original Development] minnieman:
My friend, anything to help you!

https://docs.google.com/open?id=0B4argGj_gagmZk5BRml3VGY3dTg

took it from the latest 4.1.2 update! Thanks again for your great work! :D
[Nexus 7 Original Development] bervin:
do you think for your next release you could release it with the ability to uv the cpu? comes with stock values but for those who have devices that can be uv it will be good for them..
[Nexus 7 Original Development] clemsyn:
Soon, but not on the next release ;)

BTW, compiling kernel for this at the moment... really slow using usb drives LOL
[Nexus 7 Original Development] clemsyn:
Double post...
[Nexus 7 Original Development] clemsyn:
Done ;) Link on first post. Please LMK of any issues. Thanks!
[Nexus 7 Original Development] jewnersey:
Seems to be working great for me

Question; there is no cpu underclocking, but i'm coming off the trinity kernel and have that app installed, so I can slide the cpu and also turn off hotplugging. I suppose it's just not doing anything even though it seems to stick?
[Nexus 7 Original Development] alireza9900:
Great job, awesome kernel. I love it!! It's just fantastic for movies and reading!

But I have 3 questions:

1- does this kernel support init.d ?

2- what is "unpack_add_init.sh"? it doesn't exist in zip but in the update-script file

3- Is it important what kernel and boot image I'm using before flashing this new kernel? according to the update-script it first gets current boot image and then make changes. (as far as I got realized). And where can I download a unsecured stock ramdisk with init.d support ?

thanks
[Nexus 7 Original Development] clemsyn:
Its basically a stock kernel that is undervolted for better battery life.
[Nexus 7 Original Development] clemsyn:
This only flashes kernel (zimage) part of the boot.img. The ramdisk is untouched, so if your ramdisk supports init.d, this will not change.
[Nexus 7 Original Development] Xcutionr:
It's a bit noob-ish of me to ask a question like this, but...what does "SoD" mean?
[Nexus 7 Original Development] Noobla_Khan:
Sleep of Death...won't wake up, you have to hold power until it reboots to get it out of it.
[Nexus 7 Original Development] bill3508:
My best yet with this kernel.

Still on Rasbean.

Sent from my Nexus 7 using Xparent Blue Tapatalk 2
[Nexus 7 Original Development] capez:
How is the UV table in this kernel?
[Nexus 7 Original Development] k.bergmann2:
can i flash this kernel at any battery percentage or is it recommended to wait until my n7 is fully charged?

and one more question for clarification: when i flash a new rom, do i still have this kernel or do i have to reflash it once i flashed a new rom? in other words: is a kernel included i a rom?
[Nexus 7 Original Development] Xcutionr:
You can flash it at any battery percentage, just make sure that it's above 4%. When you flash a new Rom you're going to have to flash this kernel once again, unless the kernel is already included within the Rom.
[Nexus 7 Original Development] poondog:
lol I would be careful about that 4% thing. If it dies mid flash there's a good chance you'll brick your device.

I don't flash anything with under 15% battery. It doesn't hurt to wait :) Because the recoveries for this device iirc do not have the capability to charge in recovery.
[Nexus 7 Original Development] alireza9900:
Thanks.

So what are the features of different ramdisks beside init.d support? And where can I get a good ramdisk with init.d and adb root access to filesystem?

What about this?

And just one another question? What is the difference between secured and insecured boot ? (much better with more details)

EDIT: Is it okay to pack the boot.img in linux machine and use it in android? (by compiling the unpackbootimg project files from git and use it in linux)

Thanks a lot again.
[Nexus 7 Original Development] dSlice:
Thank you for the update! I've always enjoyed this kernel!
[Nexus 7 Original Development] avishayil:
Is this kernel working on ParanoidAndroid 2.23?

Thank you for your hard work.
[Nexus 7 Original Development] Xcutionr:
It does.
[Nexus 7 Original Development] kara mustafa:
why have we two versions of kernel?
[Nexus 7 Original Development] bervin:
the bottom one is for 4.1.1 the top one is for 4.1.2
[Nexus 7 Original Development] mackay508:
Looked good but bootlooped my N7 :(
[Nexus 7 Original Development] najaboy:
That tends to happen if the wrong one is flashed. Are you on 4.1.1 or 4.1.2?
[Nexus 7 Original Development] O2Blevel:
This kernel dramatically improved my battery life, running stock 4.1.2 rom. Great work!! Thanks.
[Nexus 7 Original Development] alireza9900:
Thanks.

1. So what are the features of different ramdisks beside init.d support? And where can I get a good ramdisk with init.d and adb root access to filesystem?

2. What about this?

3. And just one another question? What is the difference between secured and insecured boot ? (much better with more details)

4. Is it okay to pack the boot.img in linux machine and use it in android? (by compiling the unpackbootimg project files from git and use it in linux)

Thanks again.
[Nexus 7 Original Development] mackay508:
Im running 4.1.2 on paranoid android, I used the extreme one but it could have been an error on my part I'll try again and hope it works haha.

Edit: Flash worked well looking forward to more battery now :)
[Nexus 7 Original Development] bervin:
Do you think that you'll release the version with tweakable CPU voltages soon?
[Nexus 7 Original Development] Badgerkiller:
delete
[Nexus 7 Original Development] sugwacee:
do we have cifs.ko and nls_utf8,ko for this 4.1.2 version? searched, nothing found.
[Nexus 7 Original Development] wingman_214:
I would love to have an experimental kernel that would allow UV on CPU/GPU as side from the changes you have made in the rest of the system.

In combination with under clocked CPU/GPU clemson's system UV. The battery saving could be enormous, but only for the units that can handle such extremes.
[Nexus 7 Original Development] ipaq_101:
Will this work on just stock roms? Or even AOSP and SG7T?

I am looking to see if it works on the rom below:

[ROM][4.1.2] SGT7 - Making your nexus 7 a true tablet

http://xdaforums.com/showthread.php?t=1788518
[Nexus 7 Original Development] leoniedelt:
I'm using PA 2.52 and just flashed this too - its been going for about 6 hours now in idle, and been used a touch here and there - basically its fab!
[Nexus 7 Original Development] sugwacee:
tried, works, but i switch to metallice for cifs support, even thought it has black lines issue. as u know, n7 has only 8/16g, i have to use cisf to extend
[Nexus 7 Original Development] ipaq_101:
It works on the rom above and I will be testing it from a 100% charge. I am going to be driving for a couple of hours and will be linking it to the hot spot on my phone and use the nexus as a gps, curious to see how the battery holds up with the screen on for a couple of hours.

Will post updates.
[Nexus 7 Original Development] ipaq_101:
Not bad at all, thanks for an amazing kernel!
[Nexus 7 Original Development] uberbania:
What is it about this kernel that lets flash still work?? Every other kernel I have tried gives me tv static (Franco, trinity, m kernel, lean kernel, faux). This one lets me use flash, I love it, since some of my coursework is done via websites with flash animation quizzes and flashcards (no pun intended).

This is my daily because of that and the sweet battery life I get on this kernel, thanks Clemsyn!
[Nexus 7 Original Development] eugenechiuu:
Because this is basically an undervolted stock kernel?
[Nexus 7 Original Development] friedsonjm:
Tried to flash this over Glazed running Trinity; gets as far as the screed saying Google with the unlocked lock.. and stays there... did a Nandroid backup, so now I guess I go find - again - the instructions for getting back into fastboot... <sigh>
[Nexus 7 Original Development] simms22:
all you have to do is reflash glazed, without wiping anything, or flash another kernel(like trinity) on top. no need to restore a nandroid or anything else.
[Nexus 7 Original Development] mcsmart:
Was the kernel in 4.2 updated or can we use the 4.1.2 kernel? I'd like to update to 4.2, but I'd also like to continue using this great battery saving kernel.
[Nexus 7 Original Development] shawn122:
This kernel does not work on 4.2.

I updated to 4.2 and tried running stock however the battery drain was significantly higher on stock 4.2 kernel.

Tried flashing this kernel and got stuck on the boot screen.

I then went back to 4.1.2 and flashed this kernel and couldn't be happier.
[Nexus 7 Original Development] N@th_OC:
I don't know if this kernel comes with is proper Ramdisk?

If it's yes, so you know why it's not working.