Related
Meaning, does the battery life take a dip when you overclock to 1.5ghz. Does it get any hotter? Is heat an issue at all on this thing? Also, any performance or battery changes from installing the tiamet kernel itself? I'm in the wifi xoom btw.
Strangely enough battery life seems to be about the same. Heat has not been an issue mainly due to having the dual core, however its something you always want to keep an eye on.
Battery life is affected most by the screen. Screen> Network connections > CPU > RAM
There was a thread that someone made a while back about the things that affected battery life the most. If I can find It ill send it your way. After seeing the charts I figured Id try changing some settings.
things I did:
1. Set my max cpu freq to 1.19 min to 488 same for all my cpu tunner profiles ( I wanted to have my phone running the same all the time)
2. Lower'd my screen settings. I didnt need a pocket flashlight EVERYTIME I unlocked my phone.
3. Turned off un needed network connections. Its not hard to turn them back on when you need them.
4. I then looked for things that were running but were not needed by anything ( google maps are used by a few apps so dont disable it haha) I used Uninstaller for root users to get rid of some things.
After all these steps my battery life went WAY up. I have been doing the same thing on my Xoom now and my batt lasts the same at 1.5 as it did at 1.
I still get VERY respectable battery life at 1.5ghz, I can easily get through the day with normal usage. Yesterday night in fact, I left the house with maybe 75% battery life, used my tablet quite a lot throughout the evening(left the house around 9, went to sleep around 1am) and used it all morning basically constantly from 7am to around noon and came home with 9% battery left.
No problems here either. Woke up around 8:30 yesterday and used it all day sometimes pretty heavy. Finally had to plug it in around 6:30. I'm home all day with a broken hip and femur, so I've been putting it through the paces. Running @ 1.5ghz with interactive gov.
Chris
+1 on 1.5GHz having little effect on battery life. I didn't have to change anything else, either.
thats all great to hear! I suppose ill start looking into rooting my wifi xoom tomorrow then. Thanks for the help!
Im very happy with the battery life on this thing. I expected 4 hours max after a few weeks of use/charges. I never thought that it would keep up with anything Apple, Lets face it.. Apple knows how to make stuff run forever. But I was plesently suprised. Xoom +1000
yeah, the battery is good, but i won't know any damage to the cpu when overclocked ?
I wouldn't worry about any CPU damage- too many people have reported success (and no reports of failure).
Anyone else notice with the tiamat kernel that their xoom becomes very unstable overclocked at 1.5 using setCPU? Mine was essentially a soft brick at 1.5 constant rebooting and never able get pass the unlock screen, I had to rewipe with bootloader. I can do 1.2 no problem but don't even want to try going higher.
All of our chips have variations, so the overclock isn't universally guaranteed. That being said, I've been using the Tiamat kernel @1.5GHz since it was released with no problems.
Should have stated that mine is the wifi model, but yea thanks for info.
Here was that post I was looking for on this stuff. http://forum.xda-developers.com/forumdisplay.php?f=946
Hey guys,
Ive been using SetCPU since it was fixed for the sensation. I am curious about what others have observed as far as battery life and performance goes.
I am running 1.8Ghz with a cpu voltage of 1.265V (1265000uV).
My battery doesnt last all that long despite all the profiles I have in place. I guess thats expected when you overclock by that much, huh? Is it worth it though?
Im sure more of you out there have experience to share. Im not talking Quadrant and benchmark scores, Im talking REAL use!
I am beginning to feel that dropping the frequency down may be in order since I cannot find anything that needs 1.8Ghz to work on this phone. Plus, less frequency means less required voltage. That would mean more battery!
Anyone care to chime in with their overclock frequency + voltage and experience?
Matt
I'm also interested in getting some input from other users, without having to clog up the respective overclocking threads in the Development section.
Yesterday after work, I set up the 1.5Ghz Undervolted option using utking's tool (http://forum.xda-developers.com/showthread.php?t=1168707). I didn't see too much need to push my CPU too hard, and a stable UV always piques my interest.
I created a couple of basic SetCPU profiles (screen off, battery below 20%, temperature < 50C), and scaling on demand up to 1512Mhz, my phone took about another 7-8 hours of moderately heavy use (Navigation, Maps, Yelp, photos, etc.) before it was on its last legs.
Bear in mind that I've been using the Anker 1900mAh battery. But even after the OC-UV that I set up, this was at least as good of battery usage as before without any SetCPU or overclocking, and actually seemed to be a little bit better to be honest.
I just dropped down to 1.6Ghz @ 1.26V...
I couldn't keep my phone from freezing with anything less than 1.26V @ 1.6Ghz. We will see how this goes for a few days and compare to my previous 1.8Ghz @ 1.265V.
So far, speed seems to be FASTER than 1.8Ghz. My Quadrant score (only being used here for comparison reasons) was 2700 right off the bat, whereas 1.8Ghz would peak around 2700-2800 after several tries.
The carousel works much better! I can swipe through quickly and have it scroll with zero lag. I can also fast swipe and watch is spin nicely!
Google Earth and Maps is about the same as 1.8Ghz.
Before, at 1.8Ghz, I could probably get 16 hours out of my phone with VERY LIGHT use. (A few 2min phone calls, check mail throughout the day, check the web a little). I am charging the phone up and will report back later.
Matt
I went down from 1.62 UV to 1.5 UV,because I could not see any difference in general use nad in benchmarks(except Quadrant) and battery consumption is much bigger with 1.62 with exact same profiles on setCpu.I think that this is best compromise between speed and battery life and as far as I know this is native clock speed of 8260 Snapdragon.
mrg02d said:
I just dropped down to 1.6Ghz @ 1.26V...
I couldn't keep my phone from freezing with anything less than 1.26V @ 1.6Ghz. We will see how this goes for a few days and compare to my previous 1.8Ghz @ 1.265V.
So far, speed seems to be FASTER than 1.8Ghz. My Quadrant score (only being used here for comparison reasons) was 2700 right off the bat, whereas 1.8Ghz would peak around 2700-2800 after several tries.
The carousel works much better! I can swipe through quickly and have it scroll with zero lag. I can also fast swipe and watch is spin nicely!
Google Earth and Maps is about the same as 1.8Ghz.
Before, at 1.8Ghz, I could probably get 16 hours out of my phone with VERY LIGHT use. (A few 2min phone calls, check mail throughout the day, check the web a little). I am charging the phone up and will report back later.
Matt
Click to expand...
Click to collapse
How simple is it to temp-root and overclock? I am really only interested in overclocking to speed up Sense, and you said it performs better with a speed boost.
Sent from my HTC Sensation 4G using XDA Premium App
Very,very easy,just read this tread :http://forum.xda-developers.com/showthread.php?t=1168707
I have mine undervolted at VDD_1175000 and 1500MHz. I like it very much...makes a big difference in quadarant score, but not sure in reality how much faster. Battery life is fine (when the phone is on). Have not experiened FC's
I have modified eugenes batch file to push my kernel file and preferred speed after perma-temp-root and now is all in one click...
So here is a little update:
Its been about 8 hours since full charge and I am at 55% battery left.
1.6Ghz @ 1.26V, On Demand.
Ive been checking email, making a few calls, and surfing the net with both wifi and GPRS (was out of the network, away from 4G). I also played Angry birds for a little bit and showed off Google Maps and Earth to my Mom.
Now that Im back home, ive turned back on 4G...
Ive noticed a slight amount of hesitation while opening and closing things, but nothing bad.
I havent had any profiles kick in yet, but they will soon with the battery getting low. I will resist charging the phone and see if I make it through the night, using it as I need it. I will report tomorrow.
Matt
I must be doing something wrong.
I am rooted and running LeeDriods 1.2 Rom. When I launch setcpu the only options i have are 1000 mghz? WTF am i doing wrong?
i think at LeeDroid 1.2 you must not use setcpu but Demon control?
BigBoppa said:
i think at LeeDroid 1.2 you must not use setcpu but Demon control?
Click to expand...
Click to collapse
Hmmm, okay. I saw where set cpu was updated for the sensation in the latest release but it doesn't seem to support overclocking with this rom.
Shame that as i was about to get that rom and flash it onto my phone, glad i came in here now
Running Leedroid 1.0
Kernel @ 1.7ghz max, i have it set to 1.5ghz and 192mhz
Runs hot when i play finger racing or reckless racing or modern combat 2 or something intensive, but besides the heat, it drains just like it normally would to be honest, maybe a little quicker, definite speed increase in overall user experience, without an OC the rom just flops, better than stock but just crap, OC is needed.
To overclock. Which one iis better?
SENT FROM MY DINC2 RUNNING CM7 overclocked to 1.6ghz
Ok. I don't know if it was the kernel or what but f4 phantom bricked my touchpad. The screen was blue and I couldn't restart it. It scared me so bad. But it just now began working again and the first thing I did was remove f4.
SENT FROM MY DINC2 RUNNING CM7 overclocked to 1.6ghz
Haven't had issues with F4, actually runs both cores full time which is an advantage compared to Warthog. I've never gotten F15 to work correctly.
Running f15 at 1.8 no issues at all..
Matt V said:
Haven't had issues with F4, actually runs both cores full time which is an advantage compared to Warthog. I've never gotten F15 to work correctly.
Click to expand...
Click to collapse
isn't that going to eat up your battery?
Not really because it's on demand. At idle both cores run at 400MHz.
Matt V said:
Not really because it's on demand. At idle both cores run at 400MHz.
Click to expand...
Click to collapse
Then what does the Warthog kernel do?
Wearespacepeople said:
Then what does the Warthog kernel do?
Click to expand...
Click to collapse
Warthog idles core 1 at 292 or so and cuts off core 2 until needed. I originally used F15c Eagle to OC and recently switched to Wathog to try it out. Both Oc'd to 1.728Ghz. I have never gotten either of them to activate core 2, even with polling set to 1 sec.
JohnnyChuttz said:
Warthog idles core 1 at 292 or so and cuts off core 2 until needed. I originally used F15c Eagle to OC and recently switched to Wathog to try it out. Both Oc'd to 1.728Ghz. I have never gotten either of them to activate core 2, even with polling set to 1 sec.
Click to expand...
Click to collapse
Warthog activates core 2 when necessary I believe, I've seen it jump to 1.7ghz
JohnnyChuttz said:
Warthog idles core 1 at 292 or so and cuts off core 2 until needed. I originally used F15c Eagle to OC and recently switched to Wathog to try it out. Both Oc'd to 1.728Ghz. I have never gotten either of them to activate core 2, even with polling set to 1 sec.
Click to expand...
Click to collapse
polling frequency is not too important. just have to do something like watch a hd video. then go back and check. the number will be back down again. but what u have to do is to click on the graph, and u'll see it peaks to 1.7 when needed.
i've used f15c, and it froze a few times. been using Warthog for a day now, so far no freeze.
havent tried F4 yet. i'm happy with the performance and stability now, so i might not change it unless there's a big difference.
Use f15c ... it works awesome , if you dont see the second core do anything is because the second core is not being used! you can test it openning lets say 3 youtube videos at the same time then go to govnah and you will see second core working! after you install the kernel if second core says n/a just unnistall the kernel reboot and try phantom after you install restar again.. I guess using phantom running both cores at the same time will drecrease battery a little bit.
had problems getting f15 to oc above 1.5, would give me errors if I tried to up it. Switched to warthog and my TP has been 100%. I'm very happy with it. I have not tried F4.
bug splat said:
had problems getting f15 to oc above 1.5, would give me errors if I tried to up it. Switched to warthog and my TP has been 100%. I'm very happy with it. I have not tried F4.
Click to expand...
Click to collapse
I tried f4 but I believe since both cores run at full speed all the time battery will decrease faster not sure how much faster , I have tried movies, games, 4 youtube videos at the same time some of multitasking and with 1.7 is more than enough everything runs perfect with f15 .. I would say you are covered with warthog
Here's a test showing that F4 performs the best out of any of the kernels.
http://forums.precentral.net/hp-tou...k-benchmarking-kernel-fastest-comparison.html
bafare said:
I tried f4 but I believe since both cores run at full speed all the time battery will decrease faster not sure how much faster , I have tried movies, games, 4 youtube videos at the same time some of multitasking and with 1.7 is more than enough everything runs perfect with f15 .. I would say you are covered with warthog
Click to expand...
Click to collapse
The only way both cores are at full speed all the time is if you set the governor to performance. I believe it defaults to on demand so it should only only use higher frequencies when necessary.
I prefer F4 Phantom at the moment.
used F4 at 1.8 for few hours now and it works smooth. Difference between F15c and F4 is quite noticeable .
I have updated from uberkernel to f4 @ 1.72 , seems very stable.
Battery life on the f4 kernal is amazing even with performance mode on. I can get about a day and a half with consistant usage (I mainly use it as a pdf viewer for my textbooks, sprinkled in with heavy web usage here and there when I zone out). I can only imagine the battery life with eagle and warthog if I stuck with it longer... 6000mAh battery ftw.
Sent from my T-Mobile myTouch 3G Slide using XDA Premium App
I agree, the battery life, screen, and processor, are the strong features of this tablet. Even with webOS it's a nice, handy tablet.
My Tab is clocked to 1.2 Ghz. It gets hot when using my tablet for about 10 minutes. It hasent re booted or anything. Is there anyway to cool it down withought going back to my stock clock (1008 Mhz)? ■_■
Sent from my GT-P5113 using xda app-developers app
How high is your screen brightness and how intensive is the apps your using? also what are your governor and I/O scheduler set to? mine rarely gets more then lukewarm and I've got the 7" and overclocked.
I'm running mine at stock speeds, in an Otterbox case. I have run it for hours on end and haven't noticed the slightest bit of heat buildup. And that's inside a pretty well sealed case with very little ventilation / air circulation. Personally, I'd go back to stock speeds if it's getting this hot. IMO, there isn't much benefit from only a 200Mhz increase. To me, the cons outweigh the pros and isn't worth the risk of damage.
daniel644 said:
How high is your screen brightness and how intensive is the apps your using? also what are your governor and I/O scheduler set to? mine rarely gets more then lukewarm and I've got the 7" and overclocked.
Click to expand...
Click to collapse
My screen brightness is ¼ full. It gets hot after 10 mins of just watching videos on YouTube and browsing the web. Governor: Performance. I/O: cfq.
By the way, how much did you overclock it? i only OCed my one 200 Mhz more :S. If you need to know what ROM i am using, it is called Zap Blaster.
You said you have your governer set to performance, that means your cpu is pegged at 1200 megahertz the whole time. Thats your problem. Use on demand or interactive.
Sent from my GT-P5113 using xda premium
jasonpantuliano said:
You said you have your governer set to performance, that means your cpu is pegged at 1200 megahertz the whole time. Thats your problem. Use on demand or interactive.
Sent from my GT-P5113 using xda premium
Click to expand...
Click to collapse
Ok, thanks so much! i hope this will keep my Tab cool. I will test it on 1.3Ghz too! ^^ Thanks a bunch!!
jasonpantuliano said:
You said you have your governer set to performance, that means your cpu is pegged at 1200 megahertz the whole time. Thats your problem. Use on demand or interactive.
Sent from my GT-P5113 using xda premium
Click to expand...
Click to collapse
What about the I/O Scheduler? Should i change that to something?
NexTech00 said:
My screen brightness is ¼ full. It gets hot after 10 mins of just watching videos on YouTube and browsing the web. Governor: Performance. I/O: cfq.
By the way, how much did you overclock it? i only OCed my one 200 Mhz more :S. If you need to know what ROM i am using, it is called Zap Blaster.
Click to expand...
Click to collapse
I have clock cpu up to 1.480ghz stock roms, kk boot kernel,
Try watching YouTube, play gta game and nfs mw, while charging for 10 minutes
Ya table so hot, I checked the temperature on setcpu app, 49c°
Smelling plastic burn in a back,
Try your self...
Send From nokia n9 QUAD BOOT : Maemo, Meego, NITDroid, and Kubuntu.
iskandarizzz said:
I have clock cpu up to 1.480ghz stock roms, kk boot kernel,
Try watching YouTube, play gta game and nfs mw, while charging for 10 minutes
Ya table so hot, I checked the temperature on setcpu app, 49c°
Smelling plastic burn in a back,
Try your self...
Send From nokia n9 QUAD BOOT : Maemo, Meego, NITDroid, and Kubuntu.
Click to expand...
Click to collapse
hi I have one tab 2 p3100 too and I listen about kk boat but not understand well what is kk boat. it's kernel?
Enviado de meu GT-P3100 usando o Tapatalk 2
NexTech00 said:
My screen brightness is ¼ full. It gets hot after 10 mins of just watching videos on YouTube and browsing the web. Governor: Performance. I/O: cfq.
By the way, how much did you overclock it? i only OCed my one 200 Mhz more :S. If you need to know what ROM i am using, it is called Zap Blaster.
Click to expand...
Click to collapse
Hotplug Governor and Deadline I/O overclocked at 1.3GHz. ZERO heat issues, EXCELLENT battery life (hotplug, disables the second core when not needed).
Battery Temp. Range Between...
Hello,
I just got myself a Tab 2 7.0 about 10 days ago. After using it for a while i found that it's back gets heat while putting on charge.
Even though it holds a battery like around 9.5 hours of On Screen time and 2 Days of stand by with WIFI and Carrier signal ON. Also i've notice that putting tab under power saving mode and under charge catches heat faster then regular charging mode.
So my question is, Battery performs well? Or it's faulty? What normal range of temp. for Tab 2 P3100 while on charge. Let me know if anyone has anything to advise with.
Tab 2 7.0 still under warranty around half a year.Also forgot to mention, Tab is Running Stock 4.1.2 JB
Thanks.
The Problem With The S4 That It Has More Cpu Then It Needs. It Doesnt Have To Use It Cpu Up To 1600 Mhz, But It Automatically Does,
It Works Perfectly At 2 Cores And 800 Mhz, No Difference, Only A Better Experience , Please Read On
Ok Guys, This Will Be The Battery Discussion Page For The S4, We Will Be Doing Kernel And Under Volting Test, And Ways To Save Battery,
We Will Post Battery Records Here, And Many Other Things, This Is How It Works
I Will Post Mine Tomorrow After Fully Charging
Must Be Fully Charged Till 5 Percent Charge Without Pluging In Cable In Between,
And You Must Use Your Device As You Would Everyday
Install Cpu Spy
This Is The Layout You Fill In For Your Post
ROM:
KERNEL:
CPU MIN:
CPU MAX:
CPU GOVERNOR:
CORES ONLINE:
CORES OFFLINE:
Click to expand...
Click to collapse
Information Of How You Used Your Phone During The Process
And Any Other Information Like The Apps You Have Installed, And The App You Use To Save Battery With, Or Your
App Alternatives For Better Battery Life
Attach Photos (screenshots) Of Your Battery Record, Stats, And On Screen Time Using The Stock App In The Settings
And Your Cpu Spy Page
"i For One Have 2 Cores Offline And Under Volted To 250-800 On Both Online Cores And Have The Ondemand Governor Activated, And I Havent Felt Performance Lost, Runs Temple Run And Subway Surfers Perfectly, And No Heat, Even If Im Charging With Wifi On And Im Downloading Something, Its Great
Seems to be a nice idea. But could you elaborate as on why the text is bold and you had to use capslock for 1/2 of it!?
@slind ok i fixed the post. i will be posting links to the posts who are great battery savers without loosing performance
So basically, we use an I9500 like an Ace or a Grand to get rid of heating and battery drains.. Andyou suggest that it won't result in performance loss. I'd suggest playing games that are more graphically intensive and not just Temple Run.. Try copying data from one memory card to another, or simply try running a Full HD Video. Also, check out web browsing or maybe multitasking, and you'll see where the performance dies out.
I think the fix should come in the upcoming releases of stock firmware by Samsung. By turning off a couple of cores, you're only going back a couple of years. I don't think I upgraded from the S3 to S4 for that reason.
cabloomi said:
The Problem With The S4 That It Has More Cpu Then It Needs. It Doesnt Have To Use It Cpu Up To 1600 Mhz, But It Automatically Does,
It Works Perfectly At 2 Cores And 800 Mhz, No Difference, Only A Better Experience , Please Read On
Ok Guys, This Will Be The Battery Discussion Page For The S4, We Will Be Doing Kernel And Under Volting Test, And Ways To Save Battery,
We Will Post Battery Records Here, And Many Other Things, This Is How It Works
I Will Post Mine Tomorrow After Fully Charging
Must Be Fully Charged Till 5 Percent Charge Without Pluging In Cable In Between,
And You Must Use Your Device As You Would Everyday
Install Cpu Spy
This Is The Layout You Fill In For Your Post
Information Of How You Used Your Phone During The Process
And Any Other Information Like The Apps You Have Installed, And The App You Use To Save Battery With, Or Your
App Alternatives For Better Battery Life
Attach Photos (screenshots) Of Your Battery Record, Stats, And On Screen Time Using The Stock App In The Settings
And Your Cpu Spy Page
"i For One Have 2 Cores Offline And Under Volted To 250-800 On Both Online Cores And Have The Ondemand Governor Activated, And I Havent Felt Performance Lost, Runs Temple Run And Subway Surfers Perfectly, And No Heat, Even If Im Charging With Wifi On And Im Downloading Something, Its Great
Click to expand...
Click to collapse
post some screenshots with your screen time.
@adyscorpius
everyone has there preferences and there needs in a phone. and there own settings. and this is a Battery discussion thread. we will be doing many performance and voltage mods, so everyone could choose the settings that suits them. now please dont post aggressive post like that, im not stupid. i know that my settings are very low.
but for my most played games and most used apps. it doesnt seem to effect my performance, so im comfortable with my settings
i had the phone for 2 weeks, happily showing off battery performance and then i asked myself again, why the heck i bought this phone in the first place? BECAUSE IT HAS REPLACABLE BATTERY!.. LOL.. how silly i am trying to squeeze that little drop of power out of the battery when I can double the battery just by getting another spare.
no need to turn off anything, no need to drop performance or screen brightness.. just pure enjoyment of the full potential without worrying battery problem.. just get a spare.
cabloomi said:
@adyscorpius
everyone has there preferences and there needs in a phone. and there own settings. and this is a Battery discussion thread. we will be doing many performance and voltage mods, so everyone could choose the settings that suits them. now please dont post aggressive post like that, im not stupid. i know that my settings are very low.
but for my most played games and most used apps. it doesnt seem to effect my performance, so im comfortable with my settings
Click to expand...
Click to collapse
I didn't mean to be aggresive and sorry if you felt like that. All I mean is, there is a limit to which you can undervolt/underclock your phone without losing the functionality or speed. While underclocking to 1.0 ghz or 1.2 ghz sounds kinda normal, going all the way down to 800 Mhz and that too only on two cores is like running Galaxy Ace Dual Core instead. Why would I want to spoil my S4 for it?
That is all that I meant. And the phone is normally shelling out a good day's use in normal usage. Why bother so much about battery really???
My S4 i9505 came with MDE ROM from the factory, apart from doing dirty flashes over dirty flashes, finally someone came up with a recovery which is working. So i've :
1. Formatted system , cache , dalvik
2. Loaded in Djembey's stock slim deodexed ME2 ROM.
3. Using PimpMyROM, did some moderately less aggressive tweaks.
4. Capped the Max frequency at 1674MHz. Interactive gov, Noop sched.
5. Fully charged and unplugged.
6. Fully on 3G . Gmail sync for calendars, contacts, mail, keep, notes. Moderately heavy on Gtalk and Whatsapp. Browsing news and websites.
Observed 4 hours screen time.
Almost 15 hours of total usage + standby (This doesn't mean much, screen time depicts usage time more)
The phone still feels warmer than S2, under operation.
I've yet to try faux kernel yet, but i doubt it would get much better than this. The physical limit i feel is on the CPU, HD AMOLEDs, and the modem itself under normal usage.
Feel free to comment.
Hi,
hope you may be able to help. I have been trying almost everthing to increase the music volume as the s4 does not drive my senheiser headphones as well I would like. Is it possible to increase the gain through a kernel mod somehow?
Wow you're really random. This thread isn't even remotely discussing about the issue you raised.
Try the omega ROM thread, see if the functionality list includes volume hack.
Sent from my GT-I9505 using xda app-developers app
How does one go about disabling two of the cores ? c: