Hey guys, I'm just wondering which kernel gets better battery life in CM7. I wanna try SavagedZen but I'm hesitant about the SBC. I know there are non-SBC versions though. How do those stack up?
Also, I'm using the new Destroyer ROM by Magnus, is his stock kernel any good?
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Well i think his kernel is the stock CM kernel, I personally use the Tiamat kernel and get nice battery life.
Thanks I've heard a lot of good things about SavagesZen, so I may try that. I'm still not sure if they were referring to the SBC version or not.
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I use savagedzen cfs sbc. I love it. My phone does not agree with bfs kernels.
I get good performance and battery life
swyped from my cyanogenized and gingerbreaded EVO
gmap516 said:
Thanks I've heard a lot of good things about SavagesZen, so I may try that. I'm still not sure if they were referring to the SBC version or not.
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Click to expand...
Click to collapse
Most likely the sbc version cuz that's all they talk about now. Though when I used the kernel I had great battery life on the non-sbc with cfs and bfs versions.
What are bfs and cfs and what's the difference between the two?
I would try the SBC kernel but I'm using a third-party insurance plan, not sprint's thing, so I'm afraid to ruin the phone using SBC kernels.
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Update: OK, so I'm using savagedzen non-SBC CFS and so far my battery life seems great. does battery life vary greatly from one ROM to another if they're using the same kernel?
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well atm i am running an evo 4g with cm7 and i just switched my kernel to savaged zen and it's running great. my phone was rebooting on its own w/ the regular cm7 kernel i think its b/c i was using setcpu and people are saying it messes up cm7.
i was also wondering if anyone knew if i can use setcpu with cm7 and savaged as the kernel or if it's possible to make profiles on the cpu settings on cm7 i saw some1 post somewhere that you can but they never explained how.
Congrats on joining the kernel-flashing world, hope it treats you well.
I run CM7, and have found that SavagedZen tends to be faster than Tiamats... it just depends on your personal opinion, experiment as much as you want (just don't flash a Sense kernel on an AOSP ROM )
If you're using SavagedZen-1.0.1 CFS HAVS noSBC (the most recent SavagedZen kernel) then you don't need to use SetCPU, the HAVS (hybrid adaptive voltage scaling) and SetCPU would work against each other. HAVS works to tone down your CPU as needed and such.
To change your governor (the thing that manages your CPU), go to Settings - CyanogenMod settings - Performance - CPU settings.
Oh, and CFS stands for "Completely Fair Scheduler". It means that it doesn't let one program use up the a huge chunk of the CPU. It is good for an overall system and is supposed to have better battery life. BFS stands for "Brain F*** Scheduler. It gives the priority to foreground tasks. Think about gaming and whatever demanding programs you may use.
I use both, but the most commonly downloaded one is CFS (at least for SavagedZen)
Here's a link to explain kernels, this guy does a great job of explaining: http://forum.xda-developers.com/showthread.php?t=894880
twiz0r said:
I use savagedzen cfs sbc. I love it. My phone does not agree with bfs kernels.
I get good performance and battery life
swyped from my cyanogenized and gingerbreaded EVO
Click to expand...
Click to collapse
SavagedZen, hands down. No competition. My phone hates BFS kernels too....
so right now im running the savage zen bfs kernel. if i want to switch to the cfs kernel do i have to do a full wipe or just a cache and dalvik?
gilbydakid said:
so right now im running the savage zen bfs kernel. if i want to switch to the cfs kernel do i have to do a full wipe or just a cache and dalvik?
Click to expand...
Click to collapse
I would recommend the Tiamat kernel personally.
Also, just make a backup, and just wipe the cache and dalvik, then flash.
teh roxxorz said:
I would recommend the Tiamat kernel personally.
Also, just make a backup, and just wipe the cache and dalvik, then flash.
Click to expand...
Click to collapse
thanx for the info.
ill give the bfs and the tiamat kernel a shot. i feel like im turning into a flash whore. lol
gilbydakid said:
thanx for the info.
ill give the bfs and the tiamat kernel a shot. i feel like im turning into a flash whore. lol
Click to expand...
Click to collapse
Lol naw, you're just experimenting. Trying not to get bored right now cuz I don't have my evo >>.
I've mainly used Tiamat. Running the current version right now...3.3.3 no SBC. It seems responsive and I'm getting pretty good battery life. I will have to try SavagedZen sooner or later to see how it stacks up.
BFS kernels theoretically are supposed to give you better battery life, I used the cfs sbc savage zen and it was pretty good for speed; the bfs sbc savage zen gave me the better battery life. The only thing I can say I definitely noticed about bfs/cfs is that scrolling on bfs seems to be VERY choppy compared to cfs. No matter what profile you use on bfs the scrolling was still super choppy. So to confirm this I got back on cfs and scrolling overall was smooth as butter in cfs. Just to put this out there, I recently switched to the tiamat kernel and I'm seeing about a 15% battery increase (sounds like a little but that's a big deal) lol.
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So I did as suggested...
Backup
Clear cache/data
Flash Savage
But I was under the assumption that it'd only change the kernel, not the rom? So when it booted it was a stock/default flash. I restored to my backedup rom. Did I just negate the kernel flash?
solidwater said:
So I did as suggested...
Backup
Clear cache/data
Flash Savage
But I was under the assumption that it'd only change the kernel, not the rom? So when it booted it was a stock/default flash. I restored to my backedup rom. Did I just negate the kernel flash?
Click to expand...
Click to collapse
Lol yes you did.
twiz0r said:
I use savagedzen cfs sbc. I love it. My phone does not agree with bfs kernels.
I get good performance and battery life
swyped from my cyanogenized and gingerbreaded EVO
Click to expand...
Click to collapse
How did you get Swype to work?
LeonDuhaney said:
How did you get Swype to work?
Click to expand...
Click to collapse
Swype works fine if you have beta access from the actual site. Most of the APK files of swype flying around have expired because they released another beta version not too long ago. I believe 2.29 is the latest. I could be wrong about the number.
Sent from my EVO ;-) XDA Premium App
Related
There's a lot of kernels emphazing in battery conservation, my question is, are their any kernels where the performance is the objective, like speed and smoothness?
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LoveisPeace2012 said:
There's a lot of kernels emphazing in battery conservation, my question is, are their any kernels where the performance is the objective, like speed and smoothness?
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Click to expand...
Click to collapse
For sense roms try out netarchys/toast kernel bfs with out havs, for aosp you could try snap turbo its super fast on cm6.
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Edit; I forgot to add make sure if you have the new 0004 hardware like I do make sure the kernel supports the camera driver or it won't work.
LoveisPeace2012 said:
There's a lot of kernels emphazing in battery conservation, my question is, are their any kernels where the performance is the objective, like speed and smoothness?
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Click to collapse
They are all built for what you ask for. The battery thing your seeing a lot of is just an add benefit for the already built kernels. I use Netarchy's 4.2 kernels as they seem to be best for speed and battery.
dirkyd3rk said:
For sense roms try out netarchys/toast kernel bfs with out havs, for aosp you could try snap turbo its super fast on cm6.
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Edit; I forgot to add make sure if you have the new 0004 hardware like I do make sure the kernel supports the camera driver or it won't work.
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Click to collapse
Yes I actually do have the new 0004 evolution, does this mean the camera wont work?
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LoveisPeace2012 said:
Yes I actually do have the new 0004 evolution, does this mean the camera wont work?
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Click to collapse
You can use Netarchy's beta 4.3 and your camera will be fine. You can get the stock HTC kernel #15 with that SBC battery bit. Your choice. I think you would like Net's 4.3 IMO.
chogardjr said:
You can use Netarchy's beta 4.3 and your camera will be fine. You can get the stock HTC kernel #15 with that SBC battery bit. Your choice. I think you would like Net's 4.3 IMO.
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Click to collapse
I went to the netarchy thread but there's like ten different 4.3 versions (SBC, no SBC bfs, SBC cfs) what would be the smoothest?
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I'm 0004 also my phone happen to like his cfs kernels I'm using the less havs with sbc must say battery life is getting better. The first few days are horrible with battery life but it adjust to your usage.
LoveisPeace2012 said:
I went to the netarchy thread but there's like ten different 4.3 versions (SBC, no SBC bfs, SBC cfs) what would be the smoothest?
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Click to collapse
Swyped From Eva Running Myn's RLS4.95 or My Rom!
I suggest to start out with Net's netarchytoastmod-4.3-cfs-nohavs-noUV-nosbc-universal (No Undervolting).
This is always the best way to start off. No undervolting, no havs, and CFS usually plays nicer than BFS with most evos.
Use for a few days, and then try the less aggressive UV kernel to see the comparison to nohavs.
Then use that a few days and try the aggressive UV kernel to see how your device likes it.
Then ... you get the idea!
Only way to find what works best for your device is trial and error.
Have fun!
ps. I am still using the CFS-noUV-noHAVS-noSBC with great results. No need for me to undervolt.
yeah its all trial and error... what will work for your evo might not work for mine and so on.
Check out my guide, it may help you out.
http://forum.xda-developers.com/showthread.php?t=894880
Just a quick question...I'm running 3.70....and I'm currently using kernel 15.
Which kernel gives the best battery life?
Thanks.
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proxcee said:
Just a quick question...I'm running 3.70....and I'm currently using kernel 15.
Which kernel gives the best battery life?
Thanks.
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Click to expand...
Click to collapse
It depends on your phone you have to try done out try some of nets.or ziggy
Swyped From My Rom But I Will Always Be A Mynion!
proxcee said:
Just a quick question...I'm running 3.70....and I'm currently using kernel 15.
Which kernel gives the best battery life?
Thanks.
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Click to collapse
like nuggy said, it depends. it seems like everytime i update my rom i need a new kernel to go with it.
i personally recommend netarchy's. i used his 4.1.9.1 kernel with great results for a long time, but recently upgraded to his 4.2.1.
you can check evobenchers for a general rundown on what kernels are running at, but once again, every phone handles things differently and your results may vary.
SpaceMonky said:
like nuggy said, it depends. it seems like everytime i update my rom i need a new kernel to go with it.
i personally recommend netarchy's. i used his 4.1.9.1 kernel with great results for a long time, but recently upgraded to his 4.2.1.
you can check evobenchers for a general rundown on what kernels are running at, but once again, every phone handles things differently and your results may vary.
Click to expand...
Click to collapse
+1 4.1.9 was the best then I got a hwd 004 :-( I gave up my camera got 4.2.1 then 4.3 came out
Swyped From My Rom But I Will Always Be A Mynion!
Thanks for the help...I'll check it out.
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I have an HTC Evo 4G rooted running Myn's rls 5 .
What's the best kernel to get the most out of my battery ?
Sent From One BadAss Rooted Evo 4G On Myn's Warm 2.2 Rls 5 Steroids Via XDA App. ;-)
ima straight flash addict. ive flashed 95% of evo roms and kernels out there, unmatched battery life is SBC kernel #15. it honestly lasts me all day and im a heavy user but apperently it can lead to your phone blowing up ive never had that problem tho so ill keep taking the risk
Others are right. Try a few and see what works best. Try Netarchy's HAVS kernels with SBC for full battery and smartass or conservative governor (SetCPU from the market to set it easily).
SBC got a little harder to find recently, but it's out there, just not on the main netarchy page. Give the devs a little time and they'll work out the right legalese to appease the fear mongers...
I have myn rls5 as well and I use netarchy's 4.3.1 no SBC with cfs and havs (the newest beta) and have been doing okay with it. I typically have about 15%-25% at the end of an average day. It also improves the speed of myn rls5, which I like.
I gave up SBC for all my nandroid backed-up roms when everyone stopped supporting it, but I do still have SBC #15 v7 if you would like it (PM me and I'll upload it to you).
Keep in mind that a few people have claimed that it destroyed their battery, but I didn't overclock and all the data I've read on my phone tells me that everything was fine. So obviously, no one is responsible for your phone blowing up but you, lol.
I used SBC #15 v7 for about 2 and a half weeks and it was the best battery life I had. I ended every day at about 30% battery life and I'm a moderate user. When I flash to mikfroyo, I keep that kernel as the performance of the rom plus the battery life is a combo from awesomeville.
I use my EVO heavily and need great battery life from a kernel which should I use Tiamat or Savaged zen. ?
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Personally I like Tiamat. but you'll have to test which your phone likes better.
I say try both as well. Try SZ first though because you'll probably end up using and sticking with Tiamat. Personally, I seemed to get the best battery life with that kernal. THOUGH, the CFS 0.2.1 SZ kernel is amazing. I havent had much luck with the latest ones.
I flashed CM 7 a while back and love it, but as always I feel as though I'm not getting the best battery life. With moderate use I'm lucky not to have to plug it in halfway through the day.
Any good kernel recommendations for good battery life? I'm testing SavagedZen's kernel and using it's governor currently. I find it to have excellent life while the phones asleep, but it's a battery hog when I'm using the phone.
GoDm0dE has done wonders for my battery life! Your mileage may vary as all EVO's seem to be slightly different.
Im having a great exp with SZ 2.1.0. Try using the BFS version of the latest savagezen; As to me it seems the savagezen governor works best with their rom versus cm7(if that's what ur using). I personally run conservative or ondemand with a max of 1113 and 245 min. You could also try the new toast godmode kernel! Here's some general info I think you might find helpful.
http://forum.xda-developers.com/showthread.php?t=894880
I've tried a million different kernals and personally I think CM7 just still has some battery issues to work out.
What has become a frustration of mine is that I continually get different results with the same items. In other words. Some days I'll be using the same kernal and ROM release and even the same programs and my battery will disolve right before my eyes while sudden then I'll get great battery life for a day or two.
Personaly I think it has something to do with 3g and wifi issues, because I seem to have random issues with those as well . . . but I don't know enough about all this to back that up with anything more than anecdotal observation.
CM7 + Timat Kernel = EPIC WIN.
If you flash, only use version 3.3.7 or 3.3.8 as 4.0.0 is breaking some cameras.
Toastcfh's GoDm0dE Kernel gets my vote, and that's coming from Tiamat 3.3.8 with the -100mv script from Viperboy. The Godmode kernel is by FAR much smoother and has gotten me better battery life. Toastcfh works on Cyanogenmod so you know it'll run well with CM7
teh roxxorz said:
CM7 + Timat Kernel = EPIC WIN.
If you flash, only use version 3.3.7 or 3.3.8 as 4.0.0 is breaking some cameras.
Click to expand...
Click to collapse
I'm getting the best battery life from this combo, using 3.3.8
I just started using CM7 last week and also love it.
Image give God mode a shot n see how that works out....if not ill go back to tiamat until they fix the issue's wit the 4.0
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dirkyd3rk said:
Im having a great exp with SZ 2.1.0. Try using the BFS version of the latest savagezen; As to me it seems the savagezen governor works best with their rom versus cm7(if that's what ur using). I personally run conservative or ondemand with a max of 1113 and 245 min. You could also try the new toast godmode kernel! Here's some general info I think you might find helpful.
http://forum.xda-developers.com/showthread.php?t=894880
Click to expand...
Click to collapse
Cool link bro
cm7 -gOdMoDe-245/1113
X2
Tiamat 3.3.7sbc w viperboy...what kind of battery do you have?
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Not sure if this helps anyone, but running godmode at 245/1113 vs tiamat at 245/1267, performance governor on both, I benchmark much better on godmode. I know there's a lot more to consider than that but with a lower clock it surprised me how well godmode did. IIRC I got 1333 on quadrant.
Can anyone point me in the direction where I can find the original CM7 kernel to have on hand to switch back to should I so desire? I want to play with some other kernels, but I always like to have the original sitting by just in case, ya know? Currently running CM nightlys with 2.6.37.6-cyanogenmod-01504-gdc28eac [email protected] #1
Any input would be welcomed (ok, any constructive input hah)
lc3necro said:
Can anyone point me in the direction where I can find the original CM7 kernel to have on hand to switch back to should I so desire? I want to play with some other kernels, but I always like to have the original sitting by just in case, ya know? Currently running CM nightlys with 2.6.37.6-cyanogenmod-01504-gdc28eac [email protected] #1
Any input would be welcomed (ok, any constructive input hah)
Click to expand...
Click to collapse
Kernel manager app
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Tiamat has a nice kernel with the sbc added to it. I get around 16-20hrs on moderate use with it.
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I tried kernel manager, but whenever I try to DL a kernel it pauses then drops me back at the kernel selection screen. All I really want is the current CM / CM nightly kernel(s) so that I can try Tiamat or some of the others but still have a fail safe to drop back to without flashing a whole ROM...sighs
lc3necro said:
I tried kernel manager, but whenever I try to DL a kernel it pauses then drops me back at the kernel selection screen. All I really want is the current CM / CM nightly kernel(s) so that I can try Tiamat or some of the others but still have a fail safe to drop back to without flashing a whole ROM...sighs
Click to expand...
Click to collapse
Then go to tiamat website
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bootny said:
Then go to tiamat website
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Click to expand...
Click to collapse
Yeah, I have the tiamat kernel...what I cannot seem to find anywhere, XDA, CM forums, way too much google digging, is the CM kernel to fall back to if I do not like the results I get with tiamat.
To sum it up...
What I have:
Tiamat, Savage, godmode, and every other custom kernel...but CM
What I am seeking:
CM kernel in flashable form, and if kernel manager is the magical answer, can someone PM me and you can email it to me since the manager fails to work for me?
lc3necro said:
Yeah, I have the tiamat kernel...what I cannot seem to find anywhere, XDA, CM forums, way too much google digging, is the CM kernel to fall back to if I do not like the results I get with tiamat.
To sum it up...
What I have:
Tiamat, Savage, godmode, and every other custom kernel...but CM
What I am seeking:
CM kernel in flashable form, and if kernel manager is the magical answer, can someone PM me and you can email it to me since the manager fails to work for me?
Click to expand...
Click to collapse
Just reflash the rom.
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10 character
what rom is more stable and has better battery life?
Some people like deck's, but I get great battery life on CM7 itself, stable, ect.
teh roxxorz said:
Some people like deck's, but I get great battery life on CM7 itself, stable, ect.
Click to expand...
Click to collapse
what version of cm7 are you running?
frankie51 said:
what rom is more stable and has better battery life?
Click to expand...
Click to collapse
You'll be fine with either.
Hard to say, I tried cm many times over the years and now I just switched from sense 3.0 to deck 1.2 w a savaged zen 2.2.1 cfs kernel. Everything booted extremely fast and seems to work great! I am very satisfied w the battery life an only issue I am seeing is a slight GPS issue but I haven't had time to really address it. No one else is complaining about it so I'm sure its me, but even that being said...I recommend deck w the kernel mentioned. I have it set at 998mhz and either on demand or interactivex gov is working great. No lag. No hickups. Camera, mms works. Wifi is grabbing great and it just gets it done.
i think im gonna try out decks 1.2
after i flash is there anything else i should do to it?
Edit: GPS took a day to settle in and now working great!
frankie51 said:
what version of cm7 are you running?
Click to expand...
Click to collapse
I run the latest nightlies, with the tiamat kernel, and viperboy's script.
frankie51 said:
i think im gonna try out decks 1.2
after i flash is there anything else i should do to it?
Click to expand...
Click to collapse
Get the deck rom, gapps, and go ahead and get sz 2.2.1 cfs. Flash rom, then gapps then kernel. The reboot. Let it settle. Full reboot after it settles. Then set up. Give it a day or two before you move on and see what u think. Also keep your speed at stock speed and see how you like it. Mine is running fantastic. Don't see a need to overclock ATM
Salvage mod
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I use decks with amazin battery life. Decks 1.2 with sz kernel sbc and viperboys scripts and setcpu underlocked 537 mhz.
can you use cm7themes with evo deck?
yup mostly with any aosp kernel
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so will this theme work for evo deck?
http://forum.xda-developers.com/showthread.php?t=768848
yeah
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the matted blues theme says you get it from the cm7 theme engine, where can i get it from? im on evo deck
im gonna try cm7
wow i flashed cm7 to find out they both use the same theme changer lol
yeah they both have it lol
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frankie51 said:
wow i flashed cm7 to find out they both use the same theme changer lol
Click to expand...
Click to collapse
they are both the same with some very minor tweaks. You win either way