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[KERNEL] [2012-01-12] V2.0 FM Kernel based on 2.6.35.14 [Beta]

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By RiverSource, Senior Member on 12th November 2011, 12:08 AM
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12th November 2011, 04:56 PM |#11  
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will try this in a bit,but I'm curious, how many people see high Os usage?
Mine hasn't gone over 1O% since I' ve had the note.

is there some pattern of use that causes it ?
 
 
12th November 2011, 06:26 PM |#12  
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My usage has been variable.
On days ( weekdays ) when i use the phone a lot , OS usage is around 10-15%
However today i have not used the phone that much and usage is like 37% ( wow)
This is on stock KJ4 with CF root
12th November 2011, 06:34 PM |#13  
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How do you install this Do I extract it to a zimage file and then load it with cwm? which option on cwm do I use....or am I just totally wrong?

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12th November 2011, 06:57 PM |#14  
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Quote:
Originally Posted by RiverSource

Hello,

I want to publish the first public beta of my Kernel. It is based on 2.6.35.14 and should reduce the Android OS Battery usage. The Kernel is based on CF Root Kernel.

Can't wait to get my phone to test this promising kernel!
12th November 2011, 06:58 PM |#15  
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Quote:
Originally Posted by sman55

How do you install this Do I extract it to a zimage file and then load it with cwm?

You should flash it via the CWM Manager from Chainfire. See here:
http://forum.xda-developers.com/show....php?t=1331784
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12th November 2011, 07:25 PM |#16  
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Thanks for the info
12th November 2011, 07:34 PM |#17  
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Been playing with it, pretty decent start

I'm wondering about 3.01 now in preparation for ics... not sure of any major differences between .35 and 3 as there is with the fun I've had porting 32 to 36 on tegra.
13th November 2011, 02:32 AM |#18  
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Quote:
Originally Posted by netchip

Your opinion is that this is BLOWING in terms of battery life?
Hmm, stay tuned!

It is starting to look that way. I had really high android os usage thqt drained the bat in 6hrs with only a moderate load.

If the bat drain was all the aos with such a big drop in the percentage aos uses, i should see a corresponding increase in bat life.

I'll monitor it and report back on anything interesting.

Sent from my GT-N7000 using xda premium
13th November 2011, 11:01 AM |#19  
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The way I understand the AOS usage is that it represents % of battery drain.

Say you charge your phone to 100 and start using it non stop for 2 Hrs.
The main drain will be screen cpu and maybe network or the app you are using.
In that case, AOS will be almost nothing, like 5%. But your battery will have dropped to , say, 70%
Now charge your phone again, and leave it on standby for as many hours requested to get 70% of battery left. This would need many hours.
Obvioulsy, because you did nothing with the phone, the main drain there is the OS itself!

So to compare the old and the new kernel, they have to be tested the same way.

Say start with a full charge before going to bed and set an alarm in 8hrs after you unplug the phone.
Leave the phone on standby for 8Hrs and check the AOS usage after those 8Hrs.
Next night, repeat the process with the new kernel and see if there is any difference.
13th November 2011, 12:11 PM |#20  
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Looking good so far. I noticed that BetterBatteryStats wake lock stats now give me "Event Log Service" as the highest wakelock, 6 minutes in 6 hours. Is this due to disabling logs, and should we freeze that service so it would stop trying to log?
13th November 2011, 01:23 PM |#21  
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gave it a try, keep you posted :)

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