[MOD] A100 Peformance Enhancing build.prop for CM9 / ICS 4.0.4

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**Latest Working Revision is Rev-0.4 ** 07/28/12
**Now optional A500 build.prop for extra games/apps from Play Store**
**Thanks das_webos_transformer for testing 4.0.3 and submitting working tweaked 4.0.3 build.prop!! **

**UPDATE** Rev-0.4 For 4.1.1 Jelly Bean << NEW>>

This build.prop is specifically made for ICS and Jelly Bean - has been tested working and verified to improve performance. A500 mod now is working great.

I've been working on getting my A100 to smoking speed / performance and with my custom build.prop for ICS in combination with ezTerry's custom kernel, I think I have achieved the goal!

Yea Yea, So why another build.prop on xda? Well I was looking through the forums and noticed that there isn't much posted for ICS, there are HC tweaks, but the ones that ARE posted for ICS seem to fail.. I am confident that this build.prop will work as long as the person installing reads the instructions and information in this post thoroughly

**EDIT 08/04/2012 - I was originally using the ezTerry kernel overclocked to 1.5 using the lulzactive governor, I am currently testing my own custom kernel that I haven't decided to release yet as I am still testing it myself before I publish - Before the build.prop, my AnTuTu Benchmark score was 6200, after the build.prop I get 7118, Both scores with ezTerry kernel and cm9 ; With stock kernel and stock rom score was <6000. So, that's just a benchmark.. -NO - The main thing is - you can actually feel the difference, and it is easily noticeable, so it's not just a benchmark thing! Here is what this build.prop does:

Enhancements:

*Faster Boot
*Home Screen stored in Memory
*WiFi Data rates increased
*WiFi Scan rate decreased to preserve battery
*Media and Image Quality increased
*Disable verbose kernel logging (consumes less memory/battery)
*HW Acceleration prioritized
*Increased Window Manager / GUI events per second
...Overall Performance is definitely noticeable!

*Optional* the A500 hack has been tested and working with games and shows extra apps in Play Store see notes below.

File naming conventions:

>>Please choose your android release version in #.#.# <<<

build.prop-#.#.#-supertweak-a100-revX.X.txt == Tweaked version keeping device recognized as an A100
build.prop-#.#.#-supertweak-a100-revX.X-A500 == Tweaked version tricking apps/system to think it is A500
build.prop-#.#.#-vanilla-a100-revX.X-A500 == A500 trick with no enhancements or tweaks

**Thanks to das_webos_transformer for testing making necessary changes for cm9 4.0.3 release!**

How to install:

*Download the appropriate build.prop file attached below that you wish to test (see above naming conventions)
*You must have root, and you must mount /System rw (use Root Explorer or similar tool)
*Rename the attached file to: build.prop
*Move the existing /System/build.prop to /System/build.prop.bak
*Move the new file to /System/build.prop
*Reboot to recovery - Wipe Cache - Wipe Dalvik - Reboot System <<Important!! It won't work if you don't do this step!
*Wait for System to upgrade applications and Start to Home Screen. (initial boot takes a while, don't worry after this it wont)
*Reboot again.. Enjoy the performance

**07/28/2012 - A500 build.prop for A100 device back up, tested and working with performance mods intact. Grab the file with revX.X-A500.txt at the end of the file name. This allows extra apps to show up in Play Store/Market and your device will be recognized as the A500 instead of A100. Please don't forget to Wipe Dalvik and Cache before booting. First boot will take a while to update the apps.

**07/28/2012 - If you used the Rev.03 file please update to Rev.04 there was a minor error in the previous build.prop relating to windowmgr max events per second, this had a big impact in the performance and should be fixed in Rev.04

Originally Posted by linuxsociety

**Edit Please note that the original title of this thread said ICS 4.0.x, it should be ICS 4.0.4 (as it is now) - This build.prop is specifically made for 4.0.4 - this is very important as keys such as: ro.build.version.release=4.0.4 ro.build.id=IMM76L if you know what you are doing you can make minor alterations to fit your build and it will work, but you need to research and do this at your own risk if you aren't using 4.0.4 (hint: ICS 4.0.3 is IML74k) **

I've been working on getting my A100 to smoking speed / performance and with my custom build.prop for ICS in combination with ezTerry's custom kernel, I think I have achieved the goal! PLUS you *should* get all apps that the A500 gets in the Play Store, AND the responsiveness of the tablet is just lightening fast.

Yea Yea, So why another build.prop on xda? Well I was looking through the forums and noticed that there isn't much posted for ICS, there are HC tweaks, but the ones that ARE posted for ICS seem to fail.. I am confident that this build.prop will work as long as the person installing reads the instructions and information in this post thoroughly

I am using the ezTerry kernel overclocked to 1.5 using the ondemand governor. Before the build.prop, my AnTuTu Benchmark score was 6998, after the build.prop I get 7494, Both scores with ezTerry kernel and cm9 ; With stock kernel and stock rom score was <5900. So, that's just a benchmark.. -NO - The main thing is - you can actually feel the difference, and it is easily noticeable, so it's not just a benchmark thing! Here is what this build.prop does:

Enhancements:

*A500 Market/Play Store compatibility
*Faster Boot
*Home Screen stored in Memory
*WiFi Data rates increased
*WiFi Scan rate decreased to preserve battery
*Media and Image Quality increased
*Disable verbose kernel logging (consumes less memory/battery)
*HW Acceleration prioritized
*Increased Window Manager / GUI events per second
...Overall Performance is definitely noticeable!

How to install:

*You must have root, and you must mount /System rw (use Root Explorer or similar tool)
*Rename the attached file to: build.prop
*Move the existing /System/build.prop to /System/build.prop.bak
*Move the new file to /System/build.prop
*Reboot to recovery - Wipe Cache - Wipe Dalvik - Reboot System <<Important!! It won't work if you don't do this step!
*Wait for System to upgrade applications and Start to Home Screen. (initial boot takes a while, don't worry after this it wont)
*Reboot again.. Enjoy the performance

** This has been tested with only 4.0.4 CM 9-20120708 A100 so far (see http://forum.xda-developers.com/show....php?t=1597102 ) testers please report results!**

**Note it is very important to know that this build.prop isn't the only thing boosting the performance of my A100 - ezTerry's Kernel OC'd @ 1.5ghz plays a big part in it too! You can find the kernel and instructions for flashing it here: http://forum.xda-developers.com/show....php?t=1703683 It is also important that you know that after you use this build.prop your device will register with all apps as an A500 Iconia and not a A100 so if that is an issue with some app you use then please take this into consideration. I will edit this post soon with a build.prop that enables the performance options and keeps the A100 recognized as an A100. I'm sure there will be people who want that also.


*More to come:
* I plan to clone the sources used in ezTerry's kernel and slightly modifying his config in an attempt to patch with CK/PF patches for mainline. I'd like to see the performance when using Brain F**k Scheduler (BFS) in combination with BFQ IO scheduler. These patches also have other features like l7, LinuxIMQ, which may be fun to play with on Android with networking apps (if they will even compile with arm toolchain) I'll keep everyone informed on my progress with this, but I'm saving that work for a rainy day.
Enjoy your A100

Have I already supercharger v6, sera compatiblly? Is it a script? That is what I have to install? I neither have kernel Ezterry, nor have intention of putting it with CM9. In all that you put the link, we will prove it ... a greeting and graces.

Originally Posted by Fransis88

Have I already supercharger v6, sera compatiblly? Is it a script? That is what I have to install? I neither have kernel Ezterry, nor have intention of putting it with CM9. In all that you put the link, we will prove it ... a greeting and graces.

Hi and thanks for checking it out, it isn't a script, it just replaces the file that already exists in /System/build.prop

The file that is attached is made specifically for ICS 4.0.4, you DO NOT have to have eZterry's kernel for this to work, I have tested it only with his kernel (which allows overclocking to 1.5ghz and the use of BFQ I/O scheduler) and had great improvements on my A100. I would like to see how it works for you with your current setup if you are on 4.0.4 If it doesn't work then you just replace /System/build.prop with the file you backed up named /System/build.prop.bak

Don't forget to wipe cache and wipe dalvik

Thanks again

If someone is viewing this thread that is using the stock OFFICIAL ICS 4.0.3 or 4.0.4 firmware could you please pastebin /upload/share your /system/build.prop ? I'd greatly appreciate it, there seems to be some values that have changed recently, and I need to adjust my build.prop in this thread accordingly to the official releases. Thanks again

Originally Posted by linuxsociety

If someone is viewing this thread that is using the stock OFFICIAL ICS 4.0.3 or 4.0.4 firmware could you please pastebin /upload/share your /system/build.prop ? I'd greatly appreciate it, there seems to be some values that have changed recently, and I need to adjust my build.prop in this thread accordingly to the official releases. Thanks again

So in my case, since podras to see in the captures, I have lost performance. I have CM9. And I have never had blackouts or problems. Aviary the keyboard on screen, I use swiftkey and it has never trumped me. So after trumping the keyboard, suddenly salio the image of take-off of the CM9 and was restarting the tablet. you eat it has happened to me. Now I have returned to my original build.prop. A greeting, I leave the captures you of antutu in order that you see, if I can help you in some kind of mas...

my build.prop
you build.prop

Originally Posted by Fransis88

So in my case, since podras to see in the captures, I have lost performance. I have CM9. And I have never had blackouts or problems. Aviary the keyboard on screen, I use swiftkey and it has never trumped me. So after trumping the keyboard, suddenly salio the image of take-off of the CM9 and was restarting the tablet. you eat it has happened to me. Now I have returned to my original build.prop. A greeting, I leave the captures you of antutu in order that you see, if I can help you in some kind of mas...

Francis88: thanks for testing the build.prop, I am sorry to see you had a slight performance decrease in your score. There are many things that could have impacted that score. Did you wipe the caches before you ran the benchmark? Do you have any other performance mods intact? What CPU governor was you running with the tests? the same cpu frequency with both?
Was this ran using a stock kernel? Which build of CM9 did you use?

Could you please put your original build.prop on a pastebin site and give the link here so we can see the differences? Thanks!

Francis88: please use the Rev.04 I think the reason your original build.prop out performed the one you got here has been resolved, there was a minor error in the Rev.03 file that you grabbed. Sorry for the inconvenience bro. Thanks

If anyone here is using a custom build.prop that makes their a100 register as an A500, please let me know if Angry Birds loads for you. I have been trying to resolve the issue with the a500 customization that prevents some games/apps from loading on my CM9 4.0.4 rom. If you have the A500 build.prop customization working and loading games like Angry Birds, can you please provide your build.prop so I can take a look at what may be causing this issue for me ** Edit - <<Solved in Rev.04

The proof is in the puddin'

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I just wanted to post these 3 different results so people can see the difference it makes. All 3 runs were controlled, with no background apps, same CPU governor (lulzactive), same frequency (1500mhz), etc.

Rev0.4 Tweaked A100 (not A500) Results with AnTuTu Benchmark:



Rev0.4 Tweaked with A500 mod:



Default build.prop from ICS CM9 (no optimizations):

all I did was change it to work for 4.0.3. I don't know any of the changes for ics, I learned and still learning on froyo and a little cm7. But the changes required for this took about 1 minute.

Not sure how to post an upload on xda. So https://www.box.com/shared/24e5b156fbf12858d946

Also added linpack score.

sent from my ICONia

Uploaded with ImageShack.us

New result. Better good

Enviado desde mi A100 usando Tapatalk 2