[Kernel] Lightning Zap Kernel (Updated 18OCT13)Blaze and Exhilarate

thomas.raines said:

The governor tweak is set for a fairly balance of performance and battery life. If you find yourself needing battery life over performance, you can make some minor changes. Here's how:
1 Download Script Manager from the market (it's free)
2 Open Script Manager and navigate to /system/etc/init.d
3 Press menu/more/advanced options and select mount as RW
4 Select 01governor and select "edit" at the top (this will open the file in atext editor)
5 Uncomment (remove # in the particular line) and change:

Code:

echo "45" > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold;

To:

Code:

echo "[COLOR=red]70[/COLOR]" > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold;

6 Select menu/save
7 Press the skull and cross bones icon at the top (this will allow Super User)
8 Press run, close app and enjoy
This will result is slightly slower performance but higher battery life.

If you want even better battery life:
1 Following steps 1-4
2 Add a # at the begining of lines 11 to 19
3 Scroll to "pwoersaver" section
4 Remove the # at the begining of lines 28, 30-38 and 43

Code:

#AWAKE_GOVERNOR="ondemand"
#SLEEP_GOVERNOR="ondemand"
#    echo "70" > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold;
etc

Code:

AWAKE_GOVERNOR="powersaver"
#SLEEP_GOVERNOR="powersaver"
        echo "20000" >   /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate;

5 Follow steps 6-8 (no need to select super user icon if you already did)
This will result in lower performance, but ultimate battery life

When running in a higher performance mode (especially for gaming) you can disable powersave_bias by changing the 1 to a 0 like this:

Code:

echo "1" > /sys/devices/system/cpu/cpufreq/ondemand/powersave_bias;
echo "[COLOR=red]0[/COLOR]" >    /sys/devices/system/cpu/cpufreq/ondemand/powersave_bias;

Powersave_bias only allows the CPU to peak for small increments at a time, and not allow the CPU to remain peaked even when the system calls for it. In gaming, that could result in choppy, laggy perofrmance and slow FPS..

Although it says not to in the script, you can change the sampling rate as well. Do not go below 50000. I left it at 57500 as I found this seems good setting for smooth scrolling and performance.

Code:

    echo "[COLOR=Red]57500[/COLOR]" >   /sys/devices/system/cpu/cpufreq/ondemand/sampling_rate;

Always leave SLEEP_GOVERNOR="powersave" uncommented (no #) and do not uncomment any other SLEEP_GOVERNOR as this will keep ultimate battery save while screen is off.
Only change values in increments of 5 for the up_threshold.

I am not resposible if you do something wrong. Make a back up just in case.

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thomas.raines said:

So it's officially a no go for ICS/CM9... CM10 only guys... sorry... I'll see if I can get one made for ICS as well after I finish the ROM I am building for you guys...

As for the device getting hot while charging:
Is it on or off?
If it is on, try closing any open apps.
Try a different charger/wall socket.
I left mine on the charger overnight with it on and no additional apps installed, and it didn't get hot at any point. I was using a charger for my old blackberry, but it has the same voltage, amperage and wattage as the stock charger for the blaze.

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thomas.raines said:

Do a hard reboot (hold the power button till it reboots). Not sure why it does this. You are the second person to tell me that... Did you use twrp to install?

Sent from my SAMSUNG-SGH-I727 using xda app-developers app

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motez23 said:

Does this work for stock ICS yet?

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thomas.raines said:

Yep, already on it. I almost had it compete when my wife bricked her phone... so I had to stop my projects to get her up and texting again...lol

Sent from my SAMSUNG-SGH-I727 using xda app-developers app

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