Develop Bugs

Fresh Toast vs. ffolkes' Kernel

So, there you have it. Aside from stability, my main concern is conserving battery life. In fact, I'd sacrifice the 30FPS unlock to conserve 3+ hours of battery life if need be.
Which is better for stability and battery life in your opinion.
Also, please post what ROM you are currently using.
Thanks!
PS - Let me know if you'd like a new poll option added. (Nevermind, apparently can't tweak that now.)

akarol said:
So, there you have it. Aside from stability, my main concern is conserving battery life. In fact, I'd sacrifice the 30FPS unlock to conserve 3+ hours of battery life if need be.
Which is better for stability and battery life in your opinion.
Also, please post what ROM you are currently using.
Thanks!
PS - Let me know if you'd like a new poll option added. (Nevermind, apparently can't tweak that now.)
Click to expand...
Click to collapse
Haven't tried ffolkes yet I can say I got 22 hours out of fresh 26 with underclock while screens off

I have used DC, Baked Snack, and fresh. I think fresh is the most stable of the three. DC with JIT enabled causes reboots at times, but they are rare. DC with JIT disabled is pretty stable. Baked Snack sometimes gave me odd problems, but it is pretty fast.
I think I had best battery life with DC, about 35 hours. My brother reportedly used his phone for two days straight playing games without having to charge it. He uses DC with DCConfig set to Battery Saver. This was with an undervolted kernel without using overclock. Had to switch from undervolted at a later point because it caused HUGE amounts of stability issues. (Ffolkes' kernel)
Fresh with autostarts is pretty good with battery life. I haven't tried the latest version. Using a perflock disabled kernel and setCPU works wonders for fresh and battery life.
Baked Snack was an odd one. My battery life was inconsistent. All I can say with that one.

My thoughts on the three ROM's that Jykinturah mentioned are the same. Using DC 3.2.3 with ffolkes using set cpu, I charge my phone about as often as my girlfriend who has a blackberrry: every 2 days.

ffolkes' Higher Frame Rate Kernel
is this the 5.2 ?

flips kernel #26 doesn't work with FPS unlock for my HW002 nova screen

twe90kid said:
flips kernel #26 doesn't work with FPS unlock for my HW002 nova screen
Click to expand...
Click to collapse
It does if you use Evo Switch and change T2 to 250.

akarol said:
It does if you use Evo Switch and change T2 to 250.
Click to expand...
Click to collapse
English?
Sent from my PC36100 using XDA App

criccio said:
English?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
in the ffolkes thread there is a link to an app called EvoSwitch. It allows you to change a value called T2 (it has something to do with frequency I guess) which for some people (including me, with an 002 bought on evo release day) actually allows the fps to change.

laydros said:
in the ffolkes thread there is a link to an app called EvoSwitch. It allows you to change a value called T2 (it has something to do with frequency I guess) which for some people (including me, with an 002 bought on evo release day) actually allows the fps to change.
Click to expand...
Click to collapse
Thanks,man! I will try this over the weekend. I had tried some of ffolkes kerenels previously with no success. This might do the trick.

so which kernel is supposed to have the best batterly life?
I just put on fresh toast. I get a good 49fps
So far so good. to early to tell about battery life tho
Thats what im looking for

[Q] HTC EVO -- Best Battery life ROM???

Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!

I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.

how many of these post are we going to need lol

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
Click to expand...
Click to collapse
I know that the latest kernels off the latest build have been killing my battery, it's horrible for my EVO.
But you really have to try different rom/kernel/PRI/radio combinations to find the best battery life for your Evo. I wish there was a preset rating system for each rom though, just to see how things work for everyone else(i.e. battery life, quadrant scores, force close problems, etc.)...but there really are a lot of variables, so I don't think that may ever happen.

Yeah I agree there isn't a clear cut winner. Everyone uses their phone different so it will differ for everyone.
Totally agree to give it a few full charges... I suggest when you get a new rom and/or kernel installed to reset the battery stats (can be done in recovery) then use it till it dies then charge to full before turning it back on.
Personally, I've been using Fresh 3.3 w/ the Kings #6 kernel and not only has the phone been screamin' fast the battery has been good. I'm only on my 2nd charge up though so I still have one or two to go before everything smooths out.

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
Click to expand...
Click to collapse
2.2 Evo Kernels Tested and charted

admorris said:
I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.
Click to expand...
Click to collapse
What kernel are you using for the battery life?
Sent from my PC36100 using XDA App

catseyenu said:
2.2 Evo Kernels Tested and charted
Click to expand...
Click to collapse
As posted here, the tests showed that CM w/ Snap 7.5 probably has the best battery life - and it seems by a lot.

download juice defender

[ROM]CM-B2_Supersonic-XV a.k.a [email protected]$T(SuperMOD) UPDATE#5 w snap 7.5

I'm using the latest Fresh and I just plugged my phone in at 15% battery after 37 hours. I'm pretty happy with that.

Fresh Rom always gave me good battery.. I'm just using the rooted stock OTA and am getting great battery life.
Sent from my HTC Evo 4G using XDA app.

Sporkman said:
how many of these post are we going to need lol
Click to expand...
Click to collapse
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
I think it would be a great idea for this kind of stuff to happen. Some aggregated source where everyone can submit their information using various roms, kernels, etc. Whether it be information regarding Quadrant scores, linpacks or battery life. On computer hardware forums they generally have a section dedicated to OCing records with charts listing someones entire setup while attaining the clock speeds. I don't see why a similar implementation can not be done here.

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
How about if we make a section purely for questions and answers? That could work.

Two words......juice defender
Sent from my PC36100 using XDA App

i use Fresh's Rom made my battery life live avg abt 15 hours

Over 40 kernels were tested and benchmarked in 7 different ways, and the results are posted here.
Should tell you everything you want to know, without bringing roms into the picture (since battery life is most affected by the kernel used, not the rom)
edit - looks like I'm a bit late withthat link - I see the thread for that site was already posted above. It's a great resource.

Fresh 3.2, hands down best battery life for me. 3.3 was pretty bad, as was myn's release....which sucks, because myn's rom is otherwise awesome.

I am using Fresh 3.3.0.1 with a baked kernel that is able to over clock. I then have SetCPU installed with profiles for different states of the phone. If my screen is off I have the cpu set to a max of 500MHz to save battery if there are any processes running in the background. I then have my cpu set to 1119MHz when the phone is plugged in or at 100% with the screen on just because I like a snappy phone. Then when the battery drops below 50% I have it return to stock speeds.
I use my phone heavily for things like subsonic, QIK, FB, Calendar, wireless tether, and of course since unlimited data, calling to any cell, and texting I am on it a lot keeping in touch with friends. I also use the sprint nav at least twice a week.
Results will vary from user to user but so far the phone has been on 7 hours and after some moderate use it's only down to around 75% on the battery.
Again this is how I MYSELF use my phone with this rom and kernel this may not be how you use your phone and you may see different results.
What I have done is searched roms and installed them in total I have used 4 different roms. Baked, Cyanogen, Fresh, and Virus. After installing each rom and setting up my phone I made a nand backup of each so I can flash between them as needed to test. I have found out of all of these roms Fresh 3.3.0.1 with a kernel from the baked roms has worked the best for MY daily use.

Question about setcpu and overclocking

I'm using kings kernel #5 and i currently have its over clocked to 720 (and of course profiles clocked under that) I was wondering would i have significantly shorter battery life if i clocked it up to the highest (1.119) and set it to conservative

Gahh Its Lee said:
I'm using kings kernel #5 and i currently have its over clocked to 720 (and of course profiles clocked under that) I was wondering would i have significantly shorter battery life if i clocked it up to the highest (1.119) and set it to conservative
Click to expand...
Click to collapse
You'll most likely freeze up and crash at the highest clock speed, that's what happens to most of us. But that really depends on your hardware... You MAY be able to sustain that, but there's really no guarantees.
What I do (and I have pretty good battery life, it's 9:36 pm here and I just now dipped under 20%) is let the kernel do it's own thing and only set up a screen off profile that maxes out at 460.
But yeah, higher clock = more battery drain.

I cannot get over 1.113, reboots constantly over that. I get amazing battery life and performance with what I am running below.
Sent from HTC Incredible, Redemption 2.0.4, King's BFS #5 kernel OC to 1.113, s-off, Launcher Pro Plus

Oh I can run it sustained i have my charging profile of 1.119 and interactive. Its 11:15 and my battery just dropped under 50% (i like bragging) But i figure it i put it to conservative it probably wont ever need to really run at max will it? Im not 100% sure on how everything works just yet

The word of the King
When King released #5, he was specific in saying that if using SetCPU w/ #5, only use it to overclock, as the composition of the kernel handles battery life.
That doesn't mean you can't, obviously, but I'm just conveying what I read when it was released.
Post # 1653, here: http://forum.xda-developers.com/showthread.php?t=760050&page=34
just sayin'

Oh well thank you i had no idea. I actually messaged him on here about the kernels

I honestly dont even know what kernel i should be using... I dont even know the difference between bfs and cfs

Gahh Its Lee said:
I honestly dont even know what kernel i should be using... I dont even know the difference between bfs and cfs
Click to expand...
Click to collapse
King's notes and his d/l site go into uber-geek detail on the differences - take a look. Short version (to my understanding and probably way oversimplified) is they do different things - battery preservation or speed or a blend of the two.
That said, the kernel you should use depends on the ROM and what's important to you [speed/battery/both] - certain kernels won't/don't/shouldn't work w/ certain ROMs.Take a read thru the development section, and read thru the 2 threads for King's kernels. He's got 5? (or more) kernels out in the wild. Between those two threads, you'll see where one set is for AOSP ROMs only, the other for Sense and/or vanilla, whatever.
I've made the error of bootlooping myself by putting the inappropriate kernel into a Sense ROM - fortunately I did no permanent harm - actually it was good learning. Why? Now I look for, and use, kernels specific to the type of ROM I'm using.
They aren't one-size fits all - don't make the mistake I did - read up on what's there and you'll see what I mean.
Kind regards.

Yea I learned that not all roms work... I have virtuous 3.0.1 and want performance but mainly battery life can you suggest a kernel for me?
Sent from my ADR6300 using XDA App

Gahh Its Lee said:
Yea I learned that not all roms work... I have virtuous 3.0.1 and want performance but mainly battery life can you suggest a kernel for me?
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
King's #5 or the custom Virtuous kernel.

Lol I've used both of those I may go to kings #3 bfs not 100% sure yet hopefully ill get a message back on here
Sent from my Incredible using XDA App

Gahh Its Lee said:
Yea I learned that not all roms work... I have virtuous 3.0.1 and want performance but mainly battery life can you suggest a kernel for me?
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
Lee - best suggestion I can offer is for you to read up on the kernels available and choose the one that works with the ROM you are running, that gives you what you want.
The reading/learning will do as much for you as a super-speedy or battery-sipping kernel.
Good luck.

I've been reading but just can't find any real information
Sent from my Incredible using XDA App

The Kernels King post are defined by whether they can be used in Sense or Vanilla. His AOSP/CM are for Vanilla Roms only, and will more than likely cause bootloops if applied to a Sense Rom. The HAVS kernels are for Sense only. I change out between 2 and 5 and can't decide which is better. I also never run above 1.15 or I get constant reboots. 1.15 still reboots, but not as often.

What's going on with my battery ??

I installed the latest redemption Rom as well as the new custom battery life kernel from adrynalyne and I'm watching my battery tick down as I'm typing this!! Do I have something set up wrong bc I have no idea what's going on, up time of 38 minutes and I have lost 10% off my battery...........I have setcpu running with profiles as well as auto sync accounts turned off
Any help would be greatly appreciated!!!!
Sent from my ADR6300 using XDA App

Try removing Setup CPU and all profiles. Then I would flash the newest leaked kernal. this was a leak and not offical, but reports and personal experience is that this kernal charges much faster and the battery life is much better. You still may experience that intial battery drop when first removed off the charger, but it is by far the best one out there, IMO.
RMK posted it.
http://files.virtuousrom.com/kernels...l_stock_v4.zip

jmiller98 said:
Try removing Setup CPU and all profiles. Then I would flash the newest leaked kernal. this was a leak and not offical, but reports and personal experience is that this kernal charges much faster and the battery life is much better. You still may experience that intial battery drop when first removed off the charger, but it is by far the best one out there, IMO.
RMK posted it.
http://files.virtuousrom.com/kernels...l_stock_v4.zip
Click to expand...
Click to collapse
ok thanks will give it a try...........btw how can i put the RR logo in my posts like you have ??

trembly01 said:
ok thanks will give it a try...........btw how can i put the RR logo in my posts like you have ??
Click to expand...
Click to collapse
theyre usually on lou's posts after his dl links
Sent from my ADR6300 using XDA App

Best ROM for battery life

I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.

Having good luck with Swagged Out Stock.
Sent from my PC36100 using XDA App

A lot of people say AOSP ROMs are good on battery life cuz the sense is gone.
Try out Xplod RLS (one of my favs) test it out see how it goes for you. It's an AOSP btw.
For sense I recommend Tommytomatoes Classic v0.0.0.4 its awesome!

How long does your battery last? Are you running mobile data all day? GPS?
I can get around 20-24 hours put of my battery with real heavy usage. Around 2 days with normal use.
I keep my 3g and everything off until i need it.
HTC EVO 4G running Mikg 2.58

Don't know who your talkin too but I'll reply lol
On Classic I'm gettin roughly about 1d 19h 43m with pretty decent usage text, call, xda, browsing jus putting it to charge right now

I have always had the best success with AOSP and custom kernel.
Currently running ICSmod7 with latest tiamets. With 4g it drops fast but without I get through a full day no worries medium use. Text, fb, music during workout ect...
Sent from my PC36100 using xda premium

Getting good battery life with MikG 2.61.

mikg rom to me is best for battery life .and very stable rom and clean so try and let us know .im running miui and battery life is pretty good but not as good as my mikg rom

sense-free
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.

sam9696 said:
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.
Click to expand...
Click to collapse
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101

Tommytomatoes The Classic is a solid sense rom with good battery life its fast as hell, has lots of mods and themes and is pretty sick I've been stuck on it for over a month now I've flashed other roms but always come back to the classic after a few hours
Sent from my Classic-EViLizED-ToMAToFiED-EVo4g-

maybe a dumb question. What is the difference between underclocking and undervolting?
Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse

Underclocking is when you set the speed of the processor to a lower setting than the stock clocks where as undervolting is lowering the voltage needed to run it at a certain speed be it stock underclocked or overclocked. Simplest way I understand it.
Sent from my PC36100 using Tapatalk

Real culprit for batt issues
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
Sent from my PC36100 using XDA Premium App

IMPuLSe EX said:
I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.
Click to expand...
Click to collapse
I have been using evodeck v1.3 with the lee kernel and the rom just sips on my battery and gives me outstanding battery life with amazing speeds

lojak29 said:
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
"no one knew of" are you kidding me? Carrier IQ has been known about for at least a year now... and no, it's not responsible for any significant amount of battery drain...
Sent from my Transformer TF101

Definantly aosp in my experience. Cm7 gets my vote for battery life

Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App

alaman68 said:
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101

Gary13579 said:
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101
Click to expand...
Click to collapse
Dude you have a serious problem I honestly think you need to quit thinking people are attacking you this is the 3rd time I've seen you in a thread that I'm in and not once have I seen you post anything good or helpful I honestly think you should refrain from posting that's my opinion only cause I think your on a kid level and you really can't carry an easy conversation with someone sometimes I wonder if you even have this phone and if your trolling EVO Forum instead of the Transformer Forum.
TrevE Supporter!
If you like being on this site everyday!
I suggest you click this link a fill it out!
http://americancensorship.org/
Then HIT THE THANKS!