Motorola Xoom Overclocked: 1.5GHz Dual Core Honeycomb! [v2 2/28]

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padanfain

Senior Member
Jun 24, 2007
133
6
Are there any plans to add in the sdcard support available in tiamat's kernel to this one? Would be nice to get the best of both worlds.
 

Kas206

Senior Member
May 30, 2009
315
33
London
Im trying to flash the kernel but im getting this error

C:\android-sdk-windows\platform-tools>fastboot flash boot xoom_ocboot.img
'fastboot' is not recognized as an internal or external command,
operable program or batch file.

Any help?
 

ericdabbs

Senior Member
Jun 28, 2007
1,137
324
Los Angeles
Is coolbho3000 working on any development these days? Looks like he still hasn't updated his kernel files to work with the wifi xoom. Looks like tiamat's kernel is the only way to go for wifi only users.

I am very impressed with tiamat's changes so far especially the added sd card support.
 

kntdookoo

Senior Member
Jun 27, 2009
169
7
Im trying to flash the kernel but im getting this error

C:\android-sdk-windows\platform-tools>fastboot flash boot xoom_ocboot.img
'fastboot' is not recognized as an internal or external command,
operable program or batch file.

Any help?

-Try C:\android-sdk-windows\tools
-Then try you fastboot commands

My fastboot and ADB are in 2 different directories on my c:
 

twinkyz1979

Senior Member
Feb 1, 2011
452
86
****
Samsung Galaxy S24 Ultra
I had flashed tiamat 1.4.0 and it starting running slower and slower till it forced a reboot. When it rebooted it froze at the lock screen. So I reflashed the stock image, re-rooted it and flashed this kernel. It now runs OK but seems to get really slow at times for some reason to where things just barely load at all. I use es widget to kill all and it works good for a minute or two then right back to barely being resonsive. I am wondering if you might be able to look further into the kernel and see if there is some kind of memory leak happening. It seems to be happening randomly to some people using both your kernel here and tiamat.

I am currently running your version since it works better although it still seems to have about the same problem. I do think I noticed that setcpu is sometimes not getting su permission until I physically go into the app after a reboot.

I have a 3g verizon xoom.

Sent from my Xoom using XDA App
 

archosfan

Member
Dec 3, 2010
40
1
Maybe this question is already answert in this thread, but does this kernel work with the European 3G Xoom?

EDIT: I doesn't work :(
Please make an update!
 
Last edited:

jerrycycle

Senior Member
Aug 20, 2009
1,282
187
Yes. Do the universal root. Flash custom rom or just the kernel. If you have the 4 g model there aren't any custom rom and aware there is only 2 kernel that support the 4 g model.
 

panzerscope

Senior Member
Jul 9, 2009
384
44
He should use 2.2.2 moray and then flash the 2.2.0 odachi kernal over it as it features updates and bug fixes. You make it sound like odachi is a rom when its not, its simply an updat kernel.

Sent from Galaxy Fit. Running CM 7.1
 

eatonjb

Senior Member
Mar 5, 2006
1,226
74
Yes. Do the universal root. Flash custom rom or just the kernel. If you have the 4 g model there aren't any custom rom and aware there is only 2 kernel that support the 4 g model.

wait.. umm.. i have 3.2.2 stock, Rooted and the 4G upgrade? will this or will this NOT work with it?

thanks
eaton
 

marcyspark

Senior Member
Apr 11, 2005
172
35
London
The game changes with the 4g version. different hardware

I used the link above and now have a rooted Xoom running tiamat working on 3g at 1.5GHz with excellent battery life and lots of better features than the stock firmware.

I'm just waiting on ice cream sandwich.

Sent from my MZ601 using XDA App
 

thatdudedizzy

Member
Mar 27, 2007
47
2
dirty souFF
Yes. Do the universal root. Flash custom rom or just the kernel. If you have the 4 g model there aren't any custom rom and aware there is only 2 kernel that support the 4 g model.

please use the Universal Xoom Root method and flash either the Tiamat 2.2.2 Moray Rom or the new Tiamat 2.2.0 kernel.
You can use this guide if you like: http://xdaforums.com/showthread.php?t=1249798


so just to make sure im understanding correctly, i just got my 4g xoom last week, and those 3 Tiamat kernel wrk with the 4g models?
 

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  • 22
    Please do not flash this on the WiFi only Xoom yet. An update will be coming. In the meantime, you can just recompile the source from my github and it should work on the WiFi only Xoom.

    I have successfully brought the Tegra 2 in the Xoom to 1.5GHz. A few kernel modifications make the dual core chip in the Xoom even more powerful than the recently announced Tegra 2 3D! 1.5GHz through two Cortex A9 cores is truly a force to be reckoned with. :D

    2/28: Applied L2 prefetching patch. This increases Linpack to about 63 MFLOPS @ 1.5GHz. Flash the kernel and push the wifi module again: http://www.setcpu.com/files/xoom_ocboot_v2.zip (thanks ccfries for the heads up!!!)

    Instructions:
    1. Make sure you've unlocked your Xoom's bootloader for flashing first, then root it.
    2. Grab this zip and extract it. It includes a boot.img with the overclocked kernel and a corresponding wifi module: http://www.setcpu.com/files/xoom_ocboot_v2.zip. Thanks to Koush for the rooted ramdisk in this boot.img!
    3. Reboot into the bootloader by running:
    adb reboot bootloader
    4. Flash the boot image to your boot partition, then boot back into Android by running:
    fastboot flash boot xoom_ocboot.img
    fastboot reboot
    5. Push the bcm4329.ko to your /system/lib/modules folder and reboot to re-enable wifi:
    adb remount
    adb push bcm4329.ko /system/lib/modules/bcm4329.ko
    adb reboot


    The usual disclaimers apply here. Only do this if you know what you're doing. Though the long term stability/reliability of similar overclocks on other Android based ARM devices is known, this software is provided with no warranty, and I can't be held responsible if you fry your Xoom or anything.

    The kernel defaults to 1GHz max for safety, and also includes 1.2GHz and 1.4GHz steps in addition to the 1.504GHz step. I've also updated SetCPU to support the Xoom, so grab that (I know the interface currently looks bad on the Xoom; a tablet optimized interface is coming soon!). SetCPU versions prior to 2.1.1 will not work for setting speeds on the Xoom.

    Source code: Based on Google's android-tegra-2.6.36-honeycomb with some overclock specific modifications by me.

    Video:

    Screenshots:
    7IaG1.png


    I get ~47 MFLOPS in Linpack for Android, 35 MFLOPS stock. Linpack seems to hit a wall somewhere and isn't really accurate for the Xoom:
    rC9IX.png


    I get ~355ms in SetCPU's native bench (C only, the Tegra 2 sadly doesn't support NEON), ~534ms stock. This scaled almost precisely with clock speed, but the native bench isn't multithreaded:
    3ES62.png


    3105 in Quadrant at 1.5GHz, compared to 2226 stock (though Quadrant tests more than just the CPU):
    9P6MU.png


    Keep in mind that the benchmarks I tested often aren't multithreaded enough to show a large difference between the Xoom's Tegra 2 and a similarly clocked single core Cortex A8. Some operations benefit more from the Cortex A9's improved architecture and/or the two cores more than others.

    Enjoy your even faster Xoom!
    1
    1
    I get to step 5:

    5. Push the bcm4329.ko to your /system/lib/modules folder and reboot to re-enable wifi:
    adb remount
    adb push bcm4329.ko /system/lib/modules/bcm4329.ko
    adb reboot

    and get error: device not found. isn't bcm4329.ko suppose to be in tools folder?
    ADB doesn't seem to be able to find your Xoom. Sometimes you can just unplug it and plug it back in and run adb kill-server to get it to detect again, and/or re-enable USB debugging.

    As for stability, I did not have crashes at 1.5GHz on my Xoom.
    1
    Could someone run webkits sunspider javascript benchmark @ 1.5GHz. Wonder if it can beat my Atom powered netbook? (~1400) :)

    Running stock 1000ghz
    on demand scaling

    http://www.webkit.org/perf/sunspide...date-input":[73,74,73,164,73,84,74,73,81,74]}

    Running OC@1.5
    Performance
    http://www.webkit.org/perf/sunspide...idate-input":[81,78,78,78,79,78,78,77,78,77]}


    Glad to assist....
    1
    As far as your Galaxy S benchmarks, how does it fare in Linpack? My Xoom is right at 66MFLOPS. Linpack tests pure computational power, your Fascinate won't compare.

    Not exactly. Linpack tests only floating point operations for the java compiler and these resalts vary greatly depending on software like JIT. If you want to compare two devices for raw processing power at the core without having any software factor in run Nbench on both and compare those numbers. It takes 10 minutes to run but it will give a much more fair comparison as to the raw procoessing power of the two devices. Of course the tagra 2 will blow the hummingbird to little sad peices even on one core, untill we get a decent multi-core capable benchmark then.... Even more sad littler pieces.

    Sent from my SPH-P100 using XDA App