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I used # 2 and it was horrible. I was down to 17% with light usage on a 2150 battery in 12 hours. On the HTC stock kernal i was at 47% same usage next day 12 hours.

Im loving the kernal that comes with Virtuous 2.6 from Adrenalyne its lasting forever!
 
Question! I was inspired by this thread and decided to throw King #4 kernel on my SkyRaider 3.1 Sense. Then I added set CPU and followed some of the recommendations here.

While charging the phone, it force reset itself. The reboot took a really long time - now that the phone is back up, the programs that auto start on booting (swype, lookout, etc) are all force closing and the phone is acting weird. Every 20 seconds or so, I get a popup that that swype and other programs were forced to close

Is there some way to reboot your phone when using SetCPU that makes sure it's getting enough juice during reset? I'm worried I set it too low and messed something up.
 
Alright, I got this neat little app this morning and made 2 profiles. Screen off is at 460 - 384 and On Demand. Priority 90. Battery < 30% is at 499 - 384 and also On Demand. Priority 75.

Do these seem good? It was mostly recommendations from here. I went with the 30% battery power because I don't generally start getting that low until the evening when I'll either be out and not using it anyway or at home and can pop it on the charger.

But I have a question about the charging profiles? What exactly does that do for your phone, having it set lower while charging? Clearly it's not to save battery power, cause your charging. So does it help the phone charge faster or something? His guide doesn't really explain what it's for or why you'd want it:
Charging/Full - Set when the phone is charging from any source and when the battery is full while charging.
Charging AC/Full - Set only when the phone is charging from a wall plug (AC adapter) and when the battery is full while charging from a wall plug.
Charging USB/Full - Set only when the phone is charging from a computer (USB port) and when the battery is full while charging from the USB port.
 
running King's kernel #4 with the profile set to 245/245 ondemand with prioity 95 and running stock speed on interactive.
 
Terabethia said:
Alright, I got this neat little app this morning and made 2 profiles. Screen off is at 460 - 384 and On Demand. Priority 90. Battery < 30% is at 499 - 384 and also On Demand. Priority 75.
Click to expand...

Your settings seem okay. I put screen off to 245/245 with the interactive governor. In fact, I use the interactive governor for all profiles since it's the best balance between smoothness and power saving, IMO.

Terabethia said:
But I have a question about the charging profiles? What exactly does that do for your phone, having it set lower while charging? Clearly it's not to save battery power, cause your charging. So does it help the phone charge faster or something?
Click to expand...

Who says you have to set it lower? Some people set it higher (overclock) when on wall power so that they get the most out of it when it doesn't matter (kinda). But you're right that setting it lower while charging can make it charge faster, though the difference would probably be hardly noticeable.
 
sabrewings said:
Your settings seem okay. I put screen off to 245/245 with the interactive governor. In fact, I use the interactive governor for all profiles since it's the best balance between smoothness and power saving, IMO.
Click to expand...

Okay good. The battery is lasting a lot longer now which is awesome!

I don't think I can use anything but the on demand one since I have the stock kernel. The only options it even gives me is On Demand and Performance.

sabrewings said:
Who says you have to set it lower? Some people set it higher (overclock) when on wall power so that they get the most out of it when it doesn't matter (kinda). But you're right that setting it lower while charging can make it charge faster, though the difference would probably be hardly noticeable.
Click to expand...

Okay, that makes sense. I don't think I will bother with these since I charge my phone overnight and therefore don't care how long it takes. But good information to have if I am ever in a situation where I need a faster charge or want to use the phone while charging.
 
Terabethia said:
I don't think I can use anything but the on demand one since I have the stock kernel. The only options it even gives me is On Demand and Performance.
Click to expand...

Ah, good point. The aftermarket kernels have a lot more options. You should flash the KingxKlick #4 on there and give it a whirl. :)
 
I posted this on another thread, and your experience may be different, but I had to abandon BFS #4 because when I would try to run anything with any intensity while the phone was charging, I began to have heat issues. This did originally happen with an overclock , but then at a later time I tried again at stock and even slightly underclocked speeds and showed the same problem. Even if my phone can handle the temps I was seeing (over 109F), I don't want my battery being so hot that I can clearly feel it though the cover and case both because heat is a battery killer.
 
dscribe said:
I posted this on another thread, and your experience may be different, but I had to abandon BFS #4 because when I would try to run anything with any intensity while the phone was charging, I began to have heat issues. This did originally happen with an overclock , but then at a later time I tried again at stock and even slightly underclocked speeds and showed the same problem. Even if my phone can handle the temps I was seeing (over 109F), I don't want my battery being so hot that I can clearly feel it though the cover and case both because heat is a battery killer.
Click to expand...

The battery is spec'd up to 60C before any damage is done. That's 140F. I've seen 109F when I was back on 2.1 with the stock kernel during light use on a sunny day. You weren't close to hurting anything, just noticed some heat.
 
sabrewings said:
The battery is spec'd up to 60C before any damage is done. That's 140F. I've seen 109F when I was back on 2.1 with the stock kernel during light use on a sunny day. You weren't close to hurting anything, just noticed some heat.
Click to expand...

I know that. But I'm telling you if you run your battery hot you are reducing the life of your battery a good bit. Do some homework on Lithium batteries. I was not afraid I was going to fry my phone. Besides, I don't like holding a hot phone in my hand.
 
dscribe said:
I know that. But I'm telling you if you run your battery hot you are reducing the life of your battery a good bit. Do some homework on Lithium batteries. I was not afraid I was going to fry my phone. Besides, I don't like holding a hot phone in my hand.
Click to expand...

I happen to know Lithium-Ion/Polymer batteries very well. I did my homework on them back in college for my degree. ;)

A little heat like we're talking is not that big of a deal, trust me. Now if you run your battery near its spec'd limits most of the time charge retention does start to diminish.
 
Charge retention is going to diminish eventually regardless of how you run the battery, but the higher the temperature the sooner that degradation is going to happen. Truth be told, most people do not realize it but if you look at the charges these batteries are going to, the longevity of a battery can be near doubled merely by not charging it all the way to full. Yes, you will get a shorter charge cycle that way but the battery will "wear" much slower.
 
dscribe said:
Charge retention is going to diminish eventually regardless of how you run the battery, but the higher the temperature the sooner that degradation is going to happen. Truth be told, most people do not realize it but if you look at the charges these batteries are going to, the longevity of a battery can be near doubled merely by not charging it all the way to full. Yes, you will get a shorter charge cycle that way but the battery will "wear" much slower.
Click to expand...

This is all true, especially about not charging fully. If you only run your phone up to 75% capacity and down to 25% capacity then the battery's overall usable lifetime (to the point where it doesn't hold charge very well any more) is about 50% more.

But, the battery will already probably last the usable life of the phone until you get a new one with normal use, and batteries are cheap. There's really no reason not to charge it fully and use it like normal. In the same vein, a little heat (like you discussed earlier) is going to very slightly diminish the battery's charge retention. Will you notice the difference in the long run? Most likely not as you probably already have a different battery or a new phone.

Oh, and recycle your batteries! :)
 
I like trying different speeds on setcpu.

I learned I can't go upto 1.19ghz, freeze :(

Not very stable at 1.13 either.

Highest I go is 1.075

I'm using the Kings Kernel BFS #4 on Skyraider 3.0 Vanilla RC2

I have Screen Off profile set to 245 max and min. It can be a little laggy sometimes when entering the password, but not too bad.

<43% Profile set at 614mhz max, interactive governor

I'll underclock my phone if I don't readily have access to a charger. That's what I like best about setcpu, the flexibility.
 
Couldn't agree more.. I held off for a while thinking that it really couldn't make that much of a difference. Then after reading up on how great it was, I figured it's only $2 what the heck.. Best decision I've made.

I have only have 1 profile for screen off at 380 min and 499 max, conservative. It was a little laggy answering calls and putting in my password at 245. Since I've bumped it up a bit, it's been flawless, and battery is lasting way longer.
 
jiggaDROID said:
Couldn't agree more.. I held off for a while thinking that it really couldn't make that much of a difference. Then after reading up on how great it was, I figured it's only $2 what the heck.. Best decision I've made.

I have only have 1 profile for screen off at 380 min and 499 max, conservative. It was a little laggy answering calls and putting in my password at 245. Since I've bumped it up a bit, it's been flawless, and battery is lasting way longer.
Click to expand...

SetCPU is free for people who are registered at XDA, FYI.
 
subscribed. Good thread, good info. Lets just try to stay on topic, eh?

What i have (see disclaimer)

screen off, 384/384, interactive, 90% priotity
temp>43%, 768max
battery<25%, 768/245, ondemand
battery<50%, 998/245, ondemand
charging ac/full, 499/245, ondemand (i rarely use phone while charging)

Disclaimer, i dont know wtf im doing. I installed setcpu yesterday, and im scrubbing the forums to see what others are doing. I am copying some peoples setups and i have no idea what an of the settings do really.

ondemand? interactive? :shrugs:
 
ondemand is the best in my opinion.

CPU Scaling Governors
CPU governors control exactly how the CPU scales between your "max" and "min" set frequencies. Most kernels have "ondemand" and "performance." The availability

  • ondemand - Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see "up threshold" in Advanced Settings), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
  • conservative - Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
  • performance - Available in most kernels. It will keep the CPU running at the "max" set value at all times. This is a bit more efficient than simply setting "max" and "min" to the same value and using ondemand because the system will not waste resources scanning for the CPU load. This governor is recommended for stable benchmarking.
  • powersave - Available in some kernels. It will keep the CPU running at the "min" set value at all times.
  • userspace- A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor.
Click to expand...

http://www.pokedev.com/setcpu/

Mine is:

Charging/Full: 499 max/245 min ondemand
Battery <30%: 384 max/245 min ondemand
Screen Off: 245 max/245 min ondemand

I get great battery life.
 
Mine:

Battery < 20% (Priority 100) 245 MAX / 245 MIN
Screen Off (Priority 90) 499 MAX / 245 MIN
Charging/Full (Priority 80) 998 MAX / 245 MIN
Battery < 50% (Priority 70) 499 MAX / 245 MIN
Battery < 100% (Priority 60) 998 MAX / 245 MIN

All of the profiles use "ondemand" scaling.
 
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