yashsingh1/xdaforums huggingface dataset:
[EVO 4G Android Development] flooberz:
yeah my situation definitely isnt this extreme...
[EVO 4G Android Development] akarol:
I do notice a significant decrease in battery life when the phone is active. However, this isn't a ROM issue, but a kernel issue. Try a different Kernel and you are good to go.
[EVO 4G Android Development] sling:
Yesterday I wiped did all that good stuff gave calks 1.5 a go with 4.2-cfs-more finding battery life tanked in use & sleep pretty fast 8 hours sleep 17% loss unlike Fresh set up.

I went ahead wiped again reinstalled Calks & 4.2 all is well on track thank goodness :)
[EVO 4G Android Development] tomh1979:
Read my post again, I'm talking about my observation of the kernels.
[EVO 4G Android Development] xHausx:
Hey, Netarchy. Is it possible to disable or scale back some the audio boost for headphone and bluetooth sounds? I've noticed on certain songs with just the right bass line it will cause whatever headphones you're using to sound like they are blown.

I almost destroyed my bluetooth headphones (I'm surprised by how well they held up to being thrown and slapped around, backbeats FTW lol) thinking they were the cause only to have another pair of headphones I knew were good do the same thing.
[EVO 4G Android Development] beerad29:
Update on Net 4.2.1 SA More Agressive and battery

Two days ago I reported my findings regarding my phone and the BFS versions of 4.2. As almost everyone has stated, sleeping gave me great battery life but didn't do as well during use. Also my phone hasn't like BFS kernels very well - screen tearing, etc.

I swapped to the 4.2.1 CFS SA more aggressive and Myn's Warm 2.2 rls 3. Between these two things I am getting really great performance as well as battery life. With reasonably heavy use with internet, email, phone, messaging, and wireless tether over a morning and afternoon, my battery stands at 40% after 8 hours. This is 5 hours more than comparable use in the past.

This really illustrates how much trial and error we must do to find the correct ROM/kernel combo for our phone's individual makeup.

No doubt though, Net's new kernel tweaks has given me a solid phone that I can survive business travel without lots of charging. I have bounced between Warm, Vaelpak, CM6.1, Ava1.9, Fresh3.4, Azrael2.4, and Baked Snack. Kudos to all these ROM chefs as they are solid and all work well. But for now my phone really sings with the Warm/Net421.

Guys, donations are coming to help your efforts. A friend of mine is a manager of a local Sprint store and I had to show him my phone's battery usage stats. He is really impressed. Again, thanks!!:D:D
[EVO 4G Android Development] asafegous:
What kernel version is 64 bit evil #8?
[EVO 4G Android Development] eniamg02:
Everything had been running great but started spiking again while scrolling through homescreens on more agressive.trying less uv now.
[EVO 4G Android Development] tomh1979:
Going back to 4.1.9.1
[EVO 4G Android Development] strongsteve:
I could care less about battery. I want performance. What is the best thing to do to minimize wake up lag??
[EVO 4G Android Development] eniamg02:
I would say less uv, and dont underclock so low if your using setcpu but I dont see any lag on wake up.
[EVO 4G Android Development] ms79723:
what lag?

Well if you are experiencing lag, set a profile for screen off and make it about 245mhz max and min. that'll fix it.
[EVO 4G Android Development] strongsteve:
Well.. When I first push the top button to wake up the phone, I immediately start flipping through screens and it often lags at first. Some kernels are better than others. I use setcpu 245-1119.
[EVO 4G Android Development] dthomas03:
Which scaling do you guys use for Screen off. Smartass, interactive, powersave, etc.??
[EVO 4G Android Development] ms79723:
With smartass, I don't use a screen off profile.
[EVO 4G Android Development] dthomas03:
Do you even use SetCPU? Even without it - Do you see any drain while the screen is off?
[EVO 4G Android Development] ms79723:
I use setCPU, always have it installed, just dont use it as much with smartass. And I see drain while the screen is off, but it takes a loooonnnnggg time for that to happen, im talking about hours. If you're experiencing some drain while the screen is off, then your phone probably isnt sleeping. This smartass governor underclocks the phone while its sleeping down to 245mhz.

So a solution if your phone isnt sleeping would be to just set a screen off profile, set the min to 128 and the max to 245 or the option above 245 and set the governor to smartass with the priority at 100%. That'll force your cpu down to 245 the moment your screen is off and when your phone decides to sleep, it'll underclock to 128.
[EVO 4G Android Development] xlGmanlx:
Loaded the 4.2.1 CFS more aggressive, so I will report back my experience
[EVO 4G Android Development] myspambox111:
Has anyone ever noticed a problem where the battery stops charging before 100%. Ive gotten up in the morning to find my phone is stopped on 45%, 80% etc.

I saw it happen again today after I did a data and cache wipe and put fresh 3.4.1 with net bfs more havs 4.2.1. It happened last time I put the new king kernel on it. This problem never occurs with the stock htc kernels.

I must be doing something wrong.
[EVO 4G Android Development] achllles:
I haven't seen that before. Hope it's nothing serious.
[EVO 4G Android Development] TorxT3D:
heres my benchmark numbers comparing myn rls2 and rls3.

PROCESS OF INSTALLATION/FLASHING

---------------------------

format sd card, recovery, wipe data/cache/dalvik twice, usb connect/copy and flash rom + kernel. reboot, install benchmark apps, reboot, clear running processes, run benchmark apps back to back, in sets of three. using atk to close the last benchmark running process before proceeding to the next benchmark app.

--------------------------

Myn 2.2 rls2 + kings cfs #11 (no oc), free ram after reboot 256MB

Quad - 1242, 1378, 1259

neocore - 31.8, 32.0, 31.9

nenamark - 20.6, 20.4, 20.4

fps2d - 51/5.34, 52/4.10, 52/2.84

gears - 52

linpack - 31.7, 33.6, 33.6

---------------------------------

myn 2.2 rls3 + ziggy nov 5th (no oc), 256MB free ram

quad - 1334, 1360, 1377

neocore - 31.4, 31.6, 31.6

nenamark - 16.8, 16.5, 16.6

fps2d - 51/7.71, 51/7.70, 52/6.33

gears - 52

linpack - 29.6, 33.6, 33.9

-----------------------------

myn 2.2 rls3 + netarchy 4.2.1 havs bfs more aggressive undervolting (no oc) 260MB free

quad - 1159, 1311, 1347

neocore - 31.7, 31.9, 31.8

nenamark - 20, 19.9, 19.9

fps2d - 51/4.48, 52/3.34, 52/3.76

gears - 52

linpack - 30.5, 22.8, 30.7
[EVO 4G Android Development] xlGmanlx:
of course, so sprint ****s the bed tonight, network is crapping all over itself
[EVO 4G Android Development] flying_low:
Lots of talk about battery charging... anyone able to explain a jump from 90 to 100 percent every time I charge?
[EVO 4G Android Development] xHausx:
need to wipe your battery stats
[EVO 4G Android Development] flooberz:
what app is that you're using to monitor battery ?
[EVO 4G Android Development] sw99:
Haven't seen this one posted, but I found that on 4.2 I can't multitask as well. For example, I use my evo in the car as both a gps and mp3 player and with 4.2 my audio breaks up and even stops sometimes. With 4.9.1 it works fine. I've even tried over clocking and changing the governer to performance in setcpu with no improvement.
[EVO 4G Android Development] macmill:
How can you tell if your phone sleeping correctly? Besides a poor battery drain when off... is there a app where it will show the history while it was sleeping. I am curious to see if it is going to 245mhz when its sleeping.

Thanks

Sent from my big phone.
[EVO 4G Android Development] futuristicstyles:
Cool app and I had the same question if you find the answer can you let me know please
[EVO 4G Android Development] cavediver:
I've been running Burnt Droid 1.3 Rom with the built in 4.2 cfs nohavs and was getting great battery life during use and when the phone was sleeping. Over the last few days of the last week, I wasn't using my phone much due to excessive work obligations. By Friday evening I had 64:52:00 hours of uptime with 2:14:43 awake time. Phone was sleeping like a baby.

Yesterday I decided to try a couple of different roms. I loaded Myn's 2.3 with the stock kernel and played with it for a couple of hours. I then loaded Azrael's 2.4.1 with the stock kernel and played with it for a couple of hours. I re-loaded Myn's 2.3 and Net's 4.2.1 cfs more agressive and this time downloaded most of my apps. I set the phone up sort of like I wanted it and I also changed out the stock SD card with a new 16GB card. I had the battery charged to 100% about 8:00 p.m. last night. I used the phone a little before the end of the day running some speed tests, re-setting up and testing wireless tethering and setting up Subsonic. At 12:00 a.m. the battery was at 60%. About 5:30 a.m. I heard the phone vibrate for a second. I checked it and found it completely drained. It should have been asleep and not using the battery at all. What's the best way to figure out what's causing the excessive battery drain while sleeping?
[EVO 4G Android Development] sling:
8hr device sleep 1am to 8am running 4.2-cfs-more has provided 3% battery loss.

Apps running in background during sleep

,

HTC weather widget gps update interval every 2hr

Friend stream update every hour

LiveProfile active

3 emails received led blink & alert sound

That's amazing stuff!!!
[EVO 4G Android Development] vincey2kr1:
What rom are you running
[EVO 4G Android Development] sling:
Calks 1.5

..........
[EVO 4G Android Development] juancaperez2000:
are you using wifi?
[EVO 4G Android Development] sling:
3G enabled 4-5 bar signal strength area
[EVO 4G Android Development] sling:
I must add even though it really has nothing to do with this thread.

Just went into app cpu checked out one of my fav app- LiveProfile.

Its been blamed for battery drain running in background but as seen below that's just not true.
[EVO 4G Android Development] Biofall:
I'm surprised no one answered this question; It's simple enough.

I don't have my phone right now, but I believe it's:

menu>settings>about phone (bottom of scrollable list)>battery

You should have an "up time" and an "awake time".

If they are the same, that means that the entire time your phone was on, or "up", it was "awake" and not sleeping.

Hope I helped.
[EVO 4G Android Development] flying_low:
it's just called Battery Graph
[EVO 4G Android Development] xlGmanlx:
Your the expert haha, that's crazy what you have to do to get your phone to sleep
[EVO 4G Android Development] flying_low:
I recently wiped the battery stats but I'll try again today and let you know how it goes.
[EVO 4G Android Development] diomark:
I was getting awesome battery life with 4.19 havs cfs, but getting poor sleep battery life (10%/hour drain) with 4.21 bfs smartass..... Might go back to 4.19 for now.

-mark
[EVO 4G Android Development] c0her3nt:
Kernel

I have Fresh Evo 3.4.0.1 installed and i am not getting the battery life i want. Should i install *netarchy-toastmod-4.1.9.1-cfs-havs-universally compatible (Aggressive undervolting)* to get a better battery life? Or can someone tell me another kernel they are using on Fresh Evo 3.4.0.1. Thanks!
[EVO 4G Android Development] sling:
Ive used Fresh 3.3 & 3.4 with netarchy-toastmod-4.2-cfs-bfq-havs-more-smartass-universal-signed.

Sleep battery life & use was amazing
[EVO 4G Android Development] Biofall:
Ya know, it is crazy. I think it is the phone god's version of karma punishing me for all of the blapk market downloads. I could sit down *again* for three hours and wipe, then slowly install my hundreds of apps.. Sigh.
[EVO 4G Android Development] xlGmanlx:
app brain and streamline ;) you couldn't use hundreds of apps daily
[EVO 4G Android Development] macmill:
Thank you!
[EVO 4G Android Development] d0cx:
i'm getting screen tearing with v4.2.1-cfs-nohavs... will keep testing today.

Confirmed. Screen tearing is occuring on v4.2.1-cfs-nohavs. I flashed v4.1.9.1-cfs (non-universal) and the screen tearing is gone.
[EVO 4G Android Development] Biofall:
Someone's about to hit the big 1,000

Ha I love how everyone bases their knowledge off of their own personal experience and not actual fact.

I do in fact use ALL of the apps I have. I spend a minimum of three hours every day in the car as a passenger.

I use appbrain but I also have lots of apps that appbrain doesn't recognize. I have no idea what streamline is but I might as well look it up, thanks.
[EVO 4G Android Development] xlGmanlx:
Haha, hit the big 1,000. Streamline is a term not an app. Your right I used my experience as i wouldn't know how to use that many apps. Guess xda and fantasy football takes up most of my time and some email /work stuff
[EVO 4G Android Development] c0her3nt:
Some people are having problems with 4.2 it seems so i think i am going to stick with 4.1.9 but i am not sure if i should use the universal one or the older one made for fresh?
[EVO 4G Android Development] akarol:
Every phone is different. Only trying to find out. It won't kill you or your phone.
[EVO 4G Android Development] xlGmanlx:
Yup, oc to 1115 to see what it does to battery life
[EVO 4G Android Development] bjevers:
Kernel issue?

Netarchy - I have a reboot issue with my phone that I think is caused by most kernels out there. Ever since I've had my EVO from day one, if I was using GPS navigation (ie, Google Navigation or Sprint Navigator) and I received a phone call, if I did not return focus to the navigation app and left the phone on the call status screen, it would reboot after about 1 minute. I have tried many different roms and kernels since buying my phone, and this has always happened to me. I have to remember to switch back to my navigation app if a call comes in. This is still occurring, even with your 4.2.1 and Ziggys 11/05. It happens whether I am overclocked or not, remember, this was happening day 1 on the stock Sprint rom. However, I just flashed Myn's TwoPointTwo Rls3 and it comes with HTC's kernel #10. Guess what? My phone does not reboot. Even though HTC's kernel is labeled 2.6.32.15, does it have additional code that hasn't been released yet that your kernel does not have? I think I remember reading somewhere that HTC fixed a GPS reboot issue in 3.29 or 3.30 rom release (I assume it was a kernel fix). So is this something that just hasn't been addressed yet because the newest HTC source is not out?
[EVO 4G Android Development] netarchy:
If it's something fixed in the more recent HTC kernels then yes it's something that wouldn't be in my builds because HTC hasn't yet released the updated source for the changes they made in the kernel.
[EVO 4G Android Development] netarchy:
I'm looking into the reports of strange battery behavior with 4.2x, some people have great results while others ... not so much.

I'm curious to know what the ratio of 3.29 ota users to 3.30 ota users is in this.

I noticed my battery stats started going a bit off as well, except that it didn't correct itself by reverting kernel revisions or recalibrating. BUT I'm also using a 3.30-based rom. It would be interesting to find out if all the people having strange behavior are also on 3.30-based roms and/or if all the people having having great results are on 3.29-based roms.

First post is updated with all the information I'd like to know for people reporting issues with one of the betas.
[EVO 4G Android Development] wmdunn:
I'll be first ... using Barnacle's "Refined" rom which is 3.30 based ... and been getting the best battery life ever. Have used 4.1.9 extensively, and 4.2.1 with the Smart-Ass governor has been even better.
[EVO 4G Android Development] sling:
Calks 1.5. (3.30.651.2) Stock battery.

My first install of 4.2 on that Rom was a mess battery was getting sucked dry.

2nd install of combo yestrday has provided A+ battery life 3% loss in 8hr sleep.

I will keep close eye on it using Systempanel report my finding tomorrow
[EVO 4G Android Development] ms79723:
Something weird...my 1800mah battery keeps a constant battery temp of 75 degrees while my stock battery starts at 90+ and slowly goes down to 75, which causes crazy battery drain for no reason. I lost 6% just typing this...

Edit2: sorry for going off topic earlier, not gonna change with this edit haha. But screw this HTC batteries. They start off way too hot...in the 90 degree range...my 1800mah doesnt even hit 80 while charging

And also... Im using the 4.2.1 more aggressive bfs kernel. rooted OTA 3.30 rom with an issue...sometimes when i reboot my phone it says something about the system not working..its FC and seems to happen every other reboot. It never happened to me on cfs >.<
[EVO 4G Android Development] fastamx79:
I'll chime in as well to help out..

0003 w/ nova screen (5-pt multi) running Burnt Droid 1.3 and the 4.2.1 kernel w/ smartass OCed to 1152 and no profiles in SetCPU.

No issues what so ever here. I flashed the kernel yesterday and when I took my phone off my computer I was at 100% and as of this post I am 1 day, 4 hours since unlpugged and with 12% battery left. I think I am getting excellent battery life with this setup.

--edit--

It's also showing 29:25:xx uptime

8:51:xx awake time
[EVO 4G Android Development] flying_low:
out of curiosity i spent some time benchmarking my Evo using a few different combos of kernels and overclocking on Fresh 3.3 and 3.4.

here's what i got for ROM+Kernal/OC/fps+dev/linpack/quadrant (all scores are an average of 5 runs)

3.4.0.1 - stock - 998 - 51, 8.15 dev - 34.05 - 1211

3.4.0.1 - net 4.2-bfs-bfq-havs-more-smartass - 998 - 52, 4.28 dev - 29.32 - 1334

3.4.0.1 - net 4.2-bfs-bfq-havs-more-smartass -1152 smartass - 52, 5.29 dev - 35.3 - 1444

3.4.0.1 - net 4.2-bfs-bfq-havs-more-smartass - 1228 performance - 52, 3.58 - 38.65 -1501

3.4.0.1 - net 4.1.9.1-cfs-havs-universal - 1152 conservative - 52, 3.60 dev - 30.67 - 1398

3.3.0.1 - stock - 998 - 51, 7.11 dev - 33.48 - 1283

3.3.0.1 - net 4.2-bfs-bfq-havs-more-smartass - 998 - 52, 5.19 dev - 28.4 - 1412

3.3.0.1 - net 4.2-bfs-bfq-havs-more-smartass -1152 smartass - 52, 4.57 dev - 35.12 - 1541

3.3.0.1 - net 4.2-bfs-bfq-havs-more-smartass - 1228 performance - 52, 3.76 dev - 37.73 - 1585

generally not a whole lot of difference between 3.3 and 3.4 except the quadrant score which is noticeably higher on 3.3.

also learned stock roms are only 2 point multi touch vs. 5 point with the kernel.

wireless tethering worked on all combos (2.0.5-pre9)

and recently i lost the ability to connect to 4G (starts, turns off, no scanning) which seemed to coincide with my change from 4.0.2 to 4.1.9.1, although i can't verify it because now for some reason 4.0.2 aborts while flashing. not sure why, could be a Sprint thing.
[EVO 4G Android Development] rob97ss:
Noob Question,Im lookin to try one of the 4.2 kernels,what would you recommend for Fresh 3.4.......Im use 4.1.9.1 fresh compatible now....
[EVO 4G Android Development] sling:
4.2-cfs-bfq-havs-more-smartass-universal
[EVO 4G Android Development] beerad29:
ROM/kernel/battery

I am now with Warm 2.2 Rls3; Net 4.2.1 CFS no havs; Seidio 3500 mah battery. I just changed from 4.2.1 CFS more aggressive to the non-havs to check out the new battery.

I had excellent results with the Warm 2.2 Rls3 with 4.2.1 CFS more aggressive and stock HTC battery. With heavy use I was getting close to 8 hours with ~ 23% battery life remaining from 98% charge.
[EVO 4G Android Development] ms79723:
For people who are saying that 4.2.1 is messing them up, are y'all using bfs? Because on bfs, my battery life is a bunch of bull. Its greatness while sleeping, it sleeps like a baby, but with teh screen on, im losing 4% doing absolutely nothing...and I mean nothing. The only thing i've been doing is looking at my percentage, and I've been losing 4% in about a minute. Im charging up my battery with my externel and im gonna wipe stats and try this bfs again. Bfs is soo much smoother than cfs, but this drain is ridiculous.
[EVO 4G Android Development] achllles:
I used to use cfs, with Myn's 2.2 RLS 2, and was easy to get over 12 hours a day. I tested few other kernels with Myn's 2.2 RLS 3, and went back to it, noticed same thing. It sleeps great, but when I started to use it, 2-3% drop in less than a minute.

I'm going to try BFS a couple of days and go from there.
[EVO 4G Android Development] rob97ss:
Thanks,will give it a try.....
[EVO 4G Android Development] fastamx79:
I am sorry to quote myself, but I also forgot to say that I am using the "2.6.32.25-netarchy-toastmod-4.2.1-cfs-bfq-hvas-more-smartass" kernel with my setup.
[EVO 4G Android Development] freeza:
Let's try this again:

My stdev is usually around 10-11. What causes a high stdev and how are you people getting such low stdev?

Is it because I am using apps2sd? Is it because every single app I have (aside from included system apps) is installed on ext3?

Is it because I'm overclocked too much which is actually degrading my performance?

Is it because I'm using ondemand governor while running the test?

It can't be because I have a lot of apps running, I use autostarts to have almost nothing running unless I manually run it myself.

Someone who knows anything about this help me out please :)
[EVO 4G Android Development] netarchy:
Why are you using ondemand? That is the most likely cause, as it tends to jump the cpu speed around a lot. The default governor in 4.2 is smartass, the default in 4.1.9.1 is conservative.

If you're going to run a benchmark you should probably use the performance governor if you're aiming for maximum epeen, or smartass/conservative.

That said, I have seen some occasions where overclocking too far actually slowed the phone down (rather than the typical sudden reboot). The only way to test of course would be for you to lower your overclock, or even drop to stock speeds to test.
[EVO 4G Android Development] xHausx:
Net, is it possible to undo the sound boost when using bluetooth or through the head phone jack? I've noticed certain frequencies are distorting badly through both.
[EVO 4G Android Development] juancaperez2000:
Goin back yo test CFS agresive one i let u know
[EVO 4G Android Development] achllles:
Net, I use your kernels as is, and wondering if it's possible to undervolt, or underclock. Your kernel on my sig sleeps like a baby, ranging 26mA to 80mA, but when I start browsing, the mA jumps up to 5-600. I think Zig kernel had lower mA when browsing, but didn't conserve well as your kernel when screen was off. I think if you can cut usage currency down it's going to be a perfect kernel.

Thanks again for all your work buddy.
[EVO 4G Android Development] randymac88:
Is there a real-world benefit to having a low standard deviation? I don't really get it. Why is it good to have a low standard deviation? it seems like a vanity metric. i use on demand governor, and its so smooth that i just deal with having an 8-10 STD.
[EVO 4G Android Development] TorxT3D:
running myn rls3 + netarchy 4.2.1 bfs havs more smartass, and im getting horrible battery life.

just pulled the phone off the charger, fully charged, been sitting on my desk for about 30min and the battery has already dropped down to 94%. I havent done anything yet.

EDIT: now 93%. wtf.
[EVO 4G Android Development] achllles:
Let it settle in for a day or two, then be the judge. It will drain pretty bad in first few hours at least, and it happens with all kernels I've tried.
[EVO 4G Android Development] xHausx:
The Evo has always done that until you get to ~90%, it's just how li-ion batteries work.
[EVO 4G Android Development] ms79723:
lower standard deviation is good because the standard deviation is how far off you are from the actual average. so a screen that is runnign with a fps of 55 with a standard deviation of 10 wont really be as smooth as one with a standard deviation of 3. but its not like we can really see the drop in frames anyways...i get 8-10 on some kernels, doesnt bother me one bit.
[EVO 4G Android Development] sling:
Torx clear battery stats to get proper sync with kernel