Hey guys,
What do you think of turn on "power saving" when the phone is plugged to the charger in the night? I think it slows down the speed of the processor, so it might be a little help to charge it faster.
Am I wrong?
What do you use it for?
tyraelasd said:
Bunch of text
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I don't think you will notice any difference. All it does is turning of wifi, BT and the gps. It also disables all auto sync. It won't affect the CPU since your phone goes to deep sleep
Hope I answered your questions!
Sent from my GT-N7000 using xda premium
stekarson said:
I don't think you will notice any difference. All it does is turning of wifi, BT and the gps. It also disables all auto sync. It won't affect the CPU since your phone goes to deep sleep
Hope I answered your questions!
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Thanks but I want to add that I think that it actually underclock your CPU or turn off one core, becouse when you turn it on, the phone turns considerably slower.
tyraelasd said:
Thanks but I want to add that I think that it actually underclock your CPU or turn off one core, becouse when you turn it on, the phone turns considerably slower.
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Click to collapse
When you charged your phone the power saving mode is disable if your phone works properly. In other work, the power saving mode only apply if you are using the battery.
Yes the power saving button just underclocks the CPU to a maximum of 1200Mhz (and probably disables a core too). Other features of the phone are disabled when you're in custom power saving mode.
It won't really charge it any faster as your phone's cpu always runs at a minimum of 200Mhz when charging. So unless you're using the phone as you charge, power saving isn't going to speed things up.
If you download CPU Spy you can see the percentage of time your cpu spends at certain speeds. Interesting stuff!
Related
Hello,
I saw somewhere on some PocketPC application that was lowering down frequency of CPU if device was unused - because of saving battery.
(sorry for my poor english)
I'd like to ask you if:
- is it possible and working (saving energy)?
- isn't it unhealthy for CPU?
Maybe I am just wrong but it sounds cool to me.
Thanks for answer!
iv heard of that before, i think its called *speed stepping* dont quote me on tht.and intel use it on there cpu's but i dont knw if a phne would support such a thing.it does and would save enerrgy by reducing the clock speed of the cpu it can use less volts at the core etc
now that you have said that...i wonder if you could over clock the cpu on a ppc???
would void warranty and the usual but would be good for certain handsets.
sorry i havent actualy answered ur question though
D
4n60 said:
Hello,
I saw somewhere on some PocketPC application that was lowering down frequency of CPU if device was unused - because of saving battery.
(sorry for my poor english)
I'd like to ask you if:
- is it possible and working (saving energy)?
- isn't it unhealthy for CPU?
Maybe I am just wrong but it sounds cool to me.
Thanks for answer!
Click to expand...
Click to collapse
There is no way to Overclock the Kaiser so there will be no way to Underclock the Kaiser from what i have read.
4n60 said:
- is it possible and working (saving energy)?
Click to expand...
Click to collapse
Yes for some PocketPCs, but it's depending on the CPU, and there's currently no solution for the Kaiser.
4n60 said:
- isn't it unhealthy for CPU?
Click to expand...
Click to collapse
Nope. I've over/underclocked most of my previous PDAs.
However I was more often overclocking than underclocking, as those devices are already slow enough. Unless you use it like an MP3 player for hours without doing anything else, with screen off, and where you know you need long battery life, it's just not worth having to put up with a device that is slow as hell for minor savings. There's not only the CPU drawing power there - even slowing it down by 2 won't save you much more than 10-20% power when in normal use with screen on... the backlight will already draw more than the CPU at normal speed.
Actually you might end up using more energy with the device underclocked, as you'll be staring at that lit up screen for longer while it *tries* to do what you asked it to
When "unused" as you mentioned in the title - which I understand would be when it is in your pocket doing nothing - the CPU is already in sleep mode and not running, so no such savings possible here.
Thanks for replying...
I was overlocking too some of my ppcs but it wasn't useful everytimes... (freezing etc...)
I was worried about underclocking - I don't have any experience with this...
Ok, now I got it.
Well - cool and fast PDA = daily charging...
Thanks again...
BTW: I can't turn off backlight in my kaiser. It isn't possible ?
4n60 said:
Thanks for replying...
BTW: I can't turn off backlight in my kaiser. It isn't possible ?
Click to expand...
Click to collapse
No unfortunatly it's not possible. This is my first PDA which does not allow to turn off the backlight. You can just put it as low as possible.
You may not be able to shut off the backlight, but with S2U2, you can set it to lock when you shut off the screen, thus allowing you more power saving.
But as for idling saving you power, if you have TCPMP player, you'll notice that it can read the processor speed somewhere below 400MHz. The processor's designed to automaticly adjust to save power. I once saw mine running at 195MHz.
It may not be possible to manually control, but it does do it automaticly. And underclocking actually increases the life span of the CPU.
Long time lurker, but 1st time poster.
I've noticed on my Revolution that the CPU always runs at 1ghz. I thought CPU throttling was a standard feature in android?
Anyhow I installed CPU tuner and I get much better standby battery life now (~2% drain/hr when not using phone vs. ~5% drain/hr on standby). The phone runs mostly at 124mhz w the screen off. My problem is my revolution reboots pretty frequently and sometimes even just completely shuts down w CPU tuner on. I still get reboots once in awhile w CPU tuner turned off, but much less frequently.
Anyone else having this problem? I also have green power running in the background to turn off the data connection w the screen off. Are you guys who use setCPU not getting reboots? If so I'll spend the $2 and give that a try.
hadookee said:
Long time lurker, but 1st time poster.
I've noticed on my Revolution that the CPU always runs at 1ghz. I thought CPU throttling was a standard feature in android?
Anyhow I installed CPU tuner and I get much better standby battery life now (~2% drain/hr when not using phone vs. ~5% drain/hr on standby). The phone runs mostly at 124mhz w the screen off. My problem is my revolution reboots pretty frequently and sometimes even just completely shuts down w CPU tuner on. I still get reboots once in awhile w CPU tuner turned off, but much less frequently.
Anyone else having this problem? I also have green power running in the background to turn off the data connection w the screen off. Are you guys who use setCPU not getting reboots? If so I'll spend the $2 and give that a try.
Click to expand...
Click to collapse
I honestly don't think anyone has been messing with the CPU until the CM ROM is released.
hadookee said:
Long time lurker, but 1st time poster.
I've noticed on my Revolution that the CPU always runs at 1ghz. I thought CPU throttling was a standard feature in android?
Anyhow I installed CPU tuner and I get much better standby battery life now (~2% drain/hr when not using phone vs. ~5% drain/hr on standby). The phone runs mostly at 124mhz w the screen off. My problem is my revolution reboots pretty frequently and sometimes even just completely shuts down w CPU tuner on. I still get reboots once in awhile w CPU tuner turned off, but much less frequently.
Anyone else having this problem? I also have green power running in the background to turn off the data connection w the screen off. Are you guys who use setCPU not getting reboots? If so I'll spend the $2 and give that a try.
Click to expand...
Click to collapse
As far as I've seen, the Revo's CPU does automatically speed scale to the necessary load.
If you're running lots of apps in the background, with the screen on Android will keep the cpu at full throttle to provide a smooth experience for you.
As soon as you turn off the screen, it will throttle it down as much as it can.
If the phone's rebooting on you, that's because whatever cpu tuner is doing may be keeping the cpu speed too low for the demand of the OS, then the watchdog kicks in when it thinks the cpu is stuck in a loop. (watchdog wants to be petted every 30 seconds, if the cpu misses that, the watchdog reboots the phone)
I use setcpu and have no reboot issues.
Sent from my VS910 4G using XDA App
throttle
I use android system info to show the CPU speed. It shows the % of time my revolution is running at each speed. W/o using a 3rd party app it always shows 100% at 1Ghz. W CPU tuner running it shows 50% at 122Mhz, 25% at 1Ghz, and 25% in between.
I don't think I'm running any apps thats sucking up a lot of CPU. I'm rooted w most of bloat removed.
Am I the only one not seeing any CPU throttle on stock?
i'm not seeing any throttling on stock.
setcpu drastically improved battery life when the phone's off, and no reboot issues.
some issues initially with the phone not throttling back up quickly enough when i got a call, making me unable to answer the call, but played with the settings and made it so it automatically throttles back up to 1024 when i get a call, and now it's fine.
Exactly Im much happier with my phone now. I had the same issue when I received a call but set up the profile as u did and have no problems at all
newkick said:
i'm not seeing any throttling on stock.
setcpu drastically improved battery life when the phone's off, and no reboot issues.
some issues initially with the phone not throttling back up quickly enough when i got a call, making me unable to answer the call, but played with the settings and made it so it automatically throttles back up to 1024 when i get a call, and now it's fine.
Click to expand...
Click to collapse
Sent from my VS910 4G using XDA App
I am using setCPU as well with no issues. I have mine set were the screen is off it goes to 124 and clocks back up to full 1GHz when it is on. Helps greatly improve my battery.
So what settings do you use? I get really bad lag when waking my Revo. Sometimes it will reboot after waking too.
Sent from my VS910 4G using XDA App
I don't know if this is a CPU throttling issue, or a general REVO issue, but I get horrible horrible lag sometimes trying to get any programs to respond. Like press the home key, or click send, or anything like that. I'm running Decrap 1.1, I don't know if I have too many processes running or what.
Interesting. The Thunderbolt has the same issue. Is it the same CPU in that phone?
Hi
can anyone help me with this problem.
Every time i unlock the tab(when it wakes up from sleep) it freezes, the screen doesnt respond for about 10 seconds, after that it works normally. Interesting fact is that this problem is not there when tab is on charging.
I am running MIUI XJ 2.3.10
But the problem is consistent with all the roms: stock, ics, boca.. all.
Are you using something to overclock or underclock, or undervolt your tablet CPU?
For example, there are some people who use profiles with SetCPU. They define that whenever their screen goes off, the CPU goes to a minimum 100 MHz. Which slows it down and then the tab takes its sweet time to get back on, since it's on slow speed.
Dont know much about MIUI but maybe they have CPU settings built in or something. If you dont use any overclocking, install setcpu, select minimum 100 maximum 1000 and select ondemand governor. Share results here. Dont select or enable any profile setting etc.
tried what u said with set cpu. still didnt help..
finally after lot of searching got an app called soft lock.
now my tab wakes up instantly without any freeze..
but have to check how much battery drains becaus this app probably disables deep sleep
thank u for ur reply
obahmood said:
Are you using something to overclock or underclock, or undervolt your tablet CPU?
For example, there are some people who use profiles with SetCPU. They define that whenever their screen goes off, the CPU goes to a minimum 100 MHz. Which slows it down and then the tab takes its sweet time to get back on, since it's on slow speed.
Dont know much about MIUI but maybe they have CPU settings built in or something. If you dont use any overclocking, install setcpu, select minimum 100 maximum 1000 and select ondemand governor. Share results here. Dont select or enable any profile setting etc.
Click to expand...
Click to collapse
tried what u said with set cpu. still didnt help..
finally after lot of searching got an app called soft lock.
now my tab wakes up instantly without any freeze..
but have to check how much battery drains becaus this app probably disables deep sleep
thank u for ur reply
hello
can someone help me ?
can i turn off s600's cores ?
from 4 to 3 or 2 cores
HTC One doing this automatically. Install CPU-Z You can see in this app activity of your cpu. In daily use most time Htc use 2 cores or 1.
Honestly there is no real reason to do this. Like xnobex said your device does this automatically to save battery. It only uses as much processing power as it needs to so its never at 100% load all the time and if it was it would be killed quick and overheating like crazy. Doing this would only mess up the experience and cause lag, with very little to show when it comes to improved battery life. Your device rarely ever needs to use a lot of processing power unless you're playing games. Your best bet is just to lower clock speed which the power saving mode does already setting it to 1.2 GHz when its normally at 1.7. Personally using custom kernels and under clocking helps my battery life. Also greenify is a life saver.
Sent from my HTC One using Tapatalk 4
Hello all. I am using sweep2wake function in my mobile. I know it uses wakelocks to implement, so it will prevent the mobile from going into deeper sleep state and so will consume battery when idle. I am using a setcpu screen off profile (200 max, 200 min). will it compromise?
rajag33 said:
Hello all. I am using sweep2wake function in my mobile. I know it uses wakelocks to implement, so it will prevent the mobile from going into deeper sleep state and so will consume battery when idle. I am using a setcpu screen off profile (200 max, 200 min). will it compromise?
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Well you can test it. See how it will be with and without...
shut_down said:
Well you can test it. See how it will be with and without...
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Click to collapse
@shut_down Nice to see you responding everywhere and very active in this forum. your thanks meter shows it.
when I am not using the screen off profile, sweep2wake uses a bit more battery. with screen off profile set to all minimum, there is no obvious battery drain in using sweep2wake. so as usual setcpu saves my day. (but it takes 2 to 3 more seconds to wake the screen)
Edit: when I am using some other governor rathar than pegasusq, for my screen off profile(abyssplug, interactive), then there is no wake up delay). I read somewhere, that Pegasusq is not good for deep sleep states, and it helped. And when using conservative governor for screen off, phone is not waking, and I have to reboot it manually. Hope it helps someone.
rajag33 said:
@shut_down Nice to see you responding everywhere and very active in this forum. your thanks meter shows it.
when I am not using the screen off profile, sweep2wake uses a bit more battery. with screen off profile set to all minimum, there is no obvious battery drain in using sweep2wake. so as usual setcpu saves my day. (but it takes 2 to 3 more seconds to wake the screen)
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Well yes, that lowering CPU freq gives you less responsive wake up. I am not sure what would be the solution. On the one side there is sweep2wake, on the other is battery life.
shut_down said:
Well yes, that lowering CPU freq gives you less responsive wake up. I am not sure what would be the solution. On the one side there is sweep2wake, on the other is battery life.
Click to expand...
Click to collapse
when I am using some other governor rather than pegasusq,
for my screen off profile(abyssplug, interactive), then
there is no wake up delay). I read somewhere, that
Pegasusq is not good for deep sleep states, and it
helped. And when using conservative governor for screen
off, phone is not waking, and I have to reboot it
manually. Hope it helps someone.