[Galaxy S II General] hospital349:
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Recarenelmendations

(Customized Set-ups to Suit Your Needs)

Recommended Kernels: Dorimanx & Dream-IRC

Recommended App (Kernel & Voltages): ExTweaks

Stock 'n Roll

Stock Feel. Increased Battery Life.

CPU

Governors: Conservative

Frequencies: 200MHz-1200MHz

CPU Steps: 6 - (1200->100-6-Steps)

Smooth Scaling Level: 500MHz

Hotplug Mode: CPU Hotplug (default)

Load_H0: 65%

Load_L1: 50%

Min_RQ: 2

Load_RQ: 20

Rate: 100 jiffies

Freq_Min: 800000KHz

Max CPU Clock: Dual Core Mode

SCHED_MC: 0

Gentle_Fair_Sleepers: OFF

ARCH_POWER: ON

CPU Undervolting: No Undervolting - (Voltages applied through setCPU)

CPU Idle Mode: AFTR + LPA (default)

Deep-Sleep! CPU Governor: Conservative

GPU

Mali Touch Boost Level: Step3

GPU Freq Step1: 160MHz

GPU Freq Step2: 200MHz

GPU Freq Step3: 267MHz

GPU Voltage Level 1: 850mV

GPU Voltage Level 2: 950mV

GPU Voltage Level 3: 1050mV

GPU Threshold 1-Up: 60%

GPU Threshold 2-Down: 65%

GPU Threshold 2-Up: 70%

GPU Threshold 3-Down: 75%

GPU Threshold 3-Up: 80%

Screen

Min_BL: 10

Min_Gamma: 1

Max_Gamma: 20

LCD-Powersaving Mode: ON

Touch Screen Lock Freq: 500000MHz

Misc

Android Logger: OFF

I/O Scheduler: VR

zRAM: 300MB

Voltages - (Applied via any voltage control app)

200MHz (825mV), 500MHz (925mV), 800MHz (975mV), 1000MHz (1075mV), 1200MHz (1200mV)

Mystical Illusionary

Smoke & Mirrors. Battery + Performance. Flawless Victory.

CPU

Governors: ondemand

Frequencies: 200MHz-1000MHz

CPU Steps: 6 - (1200->100-6-Steps)

Smooth Scaling Level: 200MHz

Hotplug Mode: CPU Hotplug (default)

Load_H0: 70%

Load_L1: 65%

Min_RQ: 2

Load_RQ: 20

Rate: 100 jiffies

Freq_Min: 800000KHz

Max CPU Clock: Dual Core Mode

SCHED_MC: 0

Gentle_Fair_Sleepers: OFF

ARCH_POWER: ON

CPU Undervolting: No Undervolting - (Voltages applied through setCPU)

CPU Idle Mode: AFTR + LPA (default)

Deep-Sleep! CPU Governor: Conservative

GPU

Mali Touch Boost Level: Step2

GPU Freq Step1: 160MHz

GPU Freq Step2: 200MHz

GPU Voltage Level 1: 850mV

GPU Voltage Level 2: 900mV

GPU Threshold 1-Up: 70%

GPU Threshold 2-Down: 75%

GPU Threshold 2-Up: 80%

GPU Threshold 3-Down: 85%

GPU Threshold 3-Up: 90%

Screen

Min_BL: 0

Min_Gamma: 0

Max_Gamma: 15

LCD-Powersaving Mode: ON

Touch Screen Lock Freq: 500000MHz

Misc

Android Logger: OFF

I/O Scheduler: Deadline

zRAM: 300MB

Voltages - (Applied via any voltage control app)

200MHz (800mV), 500MHz (925mV), 800MHz (950mV), 1000MHz (1050mV), 1200MHz (1175mV)

How Low Can You Go?

Battery Maximization. Zero Calories.

CPU

Governors: Pegasusq

Frequencies: 200MHz-800MHz

CPU Steps: 15 - (1500->100-15-Steps)

Smooth Scaling Level: 200MHz

Hotplug Mode: CPU Hotplug (default)

Load_H0: 70%

Load_L1: 65%

Min_RQ: 2

Load_RQ: 20

Rate: 100 jiffies

Freq_Min: 700000KHz

Max CPU Clock: Dual Core Mode

SCHED_MC: 0

Gentle_Fair_Sleepers: ON

ARCH_POWER: ON

CPU Undervolting: No Undervolting - (Voltages applied through setCPU)

CPU Idle Mode: AFTR + LPA (default)

Deep-Sleep! CPU Governor: Conservative

GPU

Mali Touch Boost Level: Step2

GPU Freq Step1: 160MHz

GPU Freq Step2: 200MHz

GPU Voltage Level 1: 850mV

GPU Voltage Level 2: 900mV

GPU Threshold 1-Up: 80%

GPU Threshold 2-Down: 85%

GPU Threshold 2-Up: 90%

Screen

Min_BL: 0

Min_Gamma: 0

Max_Gamma: 10

LCD-Powersaving Mode: ON

Touch Screen Lock Freq: 300000MHz

Misc

Android Logger: OFF

I/O Scheduler: SIO

zRAM: Disabled

Voltages - (Applied via any voltage control app)

200MHz (800mV), 300MHz (825mV), 400MHz (850mV), 500MHz (925mV), 600MHz (925mV), 700MHz (950mV), 800MHz (950mV)

NOTE:

If you're feeling adventurous and fancy attempting a combination of settings for yourself to share with the rest of us, here's a general outline of what you need to know to get you started. Feel free to use my editions as a template if need be. If your 'personalized editions' make us happy, we'll add it to our lists and credit you for your hard work!

Many thanks!

Governors

BALANCED/FLEXIBLE

Ondemand

Lulzactive + (Lulzactive App)

Pegasusq

OndemandX

Hotplug

Userspace

Intellidemand

InteractiveX

SavagedZen

Wheatley

PERFORMANCE DRIVEN

Performance

Lagfree

Badass

Interactive

Lionheart

LionheartX

Smartass

SmartassV2

BrazilianWax

BATTERY FRIENDLY

Conservative

Scary

Sleepy

Lazy

Powersave

I/O Schedulers

BALANCED/FLEXIBLE

Deadline

BFQ

PERFORMANCE DRIVEN

VR

CFQ

BATTERY FRIENDLY

SIO

NOOP

Underclocking (CPU/GPU)

The stock CPU frequencies for the Galaxy SII are 200MHz-1200MHz. The stock GPU frequencies are 160MHz-267MHz. These however can be underclocked and in fact many actually do.

Advantages:

Better battery life.

Device stays cooler.

Theoretically increasing your devices lifespan.

Disadvantages:

Performance not meeting expectations.

Before deciding to underclock your CPU/GPU, you should always consider what you use your device for. If you don't play games that are GPU heavy, you might find that underclocking to 100MHZ-160MHZ will have no noticeable effect on performance. The same can be said for CPU underclocking. If you use your phone for general tasks that don't involve a heavy CPU load, dropping your maximum frequency down to 1000MHz or even 800MHz has no noticeable disadvantages.

Underclocking isn't risky and can only serve to provide better battery life, with the only occasional flaw being a dip in performance depending on the weight of performed tasks. The recommended method of finding which underclocking combination is best for you is just to play around with the settings until you find your perfect match!

REMEMBER THE FOLLOWING: If you're Governor and I/O Scheduler aren't optimized for performance, underclocking may lower performance to an unacceptable level.

Please take this into consideration.

Undervolting (CPU/GPU)

Many folks will disagree that undervolting has a drastic effect on battery life; we disagree.

EVERY LITTLE HELPS.

To put simply, 'mV' stands for the amount of battery the CPU/GPU consumes, per frequency. The higher the frequency, the more battery life your device consumes. So if every frequency step voltage was decreased by -100mV (at least), that's a lot of battery saved over time and we highly recommend it!

Advantages:

Better battery.

Device stays cooler.

Disadvantages:

If done correctly, there are no disadvantages to undervolting.

If you're looking to create your own customization's, our recommendation is to browse our 'Recarenelmendations' section above and use our undervolting values as a template. Each Galaxy device has been manufactured with slight differences, thus some are more capable of successfully operating under lower voltages levels than others. If you find yourself experiencing SOD's/Freezes/Lag/Reboots, we recommend you raising all our voltages up by +25mV until your device is stable. Once stability is found, begin playing with each voltage until it can be reduced no more (you should expect freezes, there's a 99.9% probability that they will occur.) Through trial & error, we can begin to understand your device better, pushing it to its limited, thus minimalism applied voltages & maximizing battery life whilst also reducing heat during heavy load times.

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Kernel Cleaning

(Recommended when changing kernel)

Samsung Ultimate Kernel Cleaning Script ICS

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Kernel Control Apps

ExTweaks

setCPU

N.E.A.K Configurator Pro

Voltage Control

AnTuTu CPU Master Pro

Thoravukk Control

NoFrills

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Battery Saving Methods

Make sure that your data's off when your screen is off. (This option is available via AOKP Roms, otherwise use: Green Power)

Only use battery friendly apps; for instance we don't use Facebook as we've read that it actually drains A LOT of battery... we use Fast Pro for this same reason. (It also has a dark theme, which is good for battery.)

Uninstall unnecessary apps/system apps using Titanium Backup. I found this, this might deem knowledgeable: APK Removal List

Use Autostarts to disable apps and system apps from automatically starting-up in the background.

Use a darker wallpapers.

Apply a lower screen brightness for darker environments

or

use: Lux to intelligently control your screen brightness.

Use a dark theme, such as: Blue Infinitium

Sync only what you need. Nothing more, nothing less.

Be sure to use Betterbatterystats to determine what is keeping your phone awake when your screen is off & not deep sleeping.

Use Badass Battery Monitor to detect which apps/system apps inflict the largest drain. If you can target these rogue apps, you can uninstall or replace them.

Lastly, be intuitive. Be overly cautious about what might be sucking up your battery and eventually you'll get things right.

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