Hello everyone
I have succesfully compiled a kernel for the Sony Ericsson Live with Walkman and for LG Optimus L3 but I have some questions about modifying it.
1.Are the governors specified for one device or I can use a governor for any device.
2.Where can I find patches (ntfs read-write,otg support,ext3-4 support etc) and governors (smartassv2,ondemandx).
3.Is there any way to make my kernel support GPU oc.
4.How can I improve 2d/3d performance like many kernels do.
5.Where can I put the modules in ramdisk so the user doesn't need to flash them.
Please answer me as many question as you can.
No one????
http://forum.xda-developers.com/showthread.php?p=17020258
http://forum.xda-developers.com/showthread.php?p=26857567
might have to pm developers for getting these answers
Related
Hi all,
So far, I am able to build a kernel from source for working on Dell Venue. As I notice, the JW rom has performed some overclocking tricks to reach a CPU frequency greater than 998MHz.
I would like to ask, how would we overclock for Dell Venue in our kernel? I tried to set min/max frequency for CPU manually, but no effect (the kernel documentation also shows that, Sysfs can override such change).
Please help!
OK, now I got the answer and know where to patch.
BTW, my topic was moved to General, it might not a suitable place since I am asking about kernel tweaks for performance, not using apps.
So r u building a new rom? might be ics 4??
Dear Friends
Please help me for choose the best & performance ram or kernel for playing HD games.:cyclops:
it`s not important to me for using high power of battry .
my phone bootloader is open & have official ram.
Wat u want ram for ur device?
LOL....some guyz cud never read the stickies...here's the best rom/kernel- http://forum.xda-developers.com/showthread.php?t=1969555
Cheers,
AJ
Gingerbread-based ROMs are always recommended if you're a gamer. Just add tweaks to build.prop and init.d. As for the kernel, just use a kernel that supports overclocking (all custom kernels do). You might also want to set smoothass or brazilianwax as your governor and sio as your I/O scheduler.
got a new site for downloading ram here. its real all right!
Just a heads up, it is against the XDA rules to ask such questions-
" Which is the BEST ROM or Which is the Best Kernel"
Browse the Development Section, Read the Kernel Threads in detail and Try on. This is the main point of this Forum.
I just found a way to overclock the GPU on all xperias. Need some testers, but remember, it might damage your device!
I will releasing here test kernels for X8, but these MIGHT DAMAGE your devices, so you flashing on your own.
XDA:DevDB Information
Pepejson-Kernel, a Kernel for the Sony Ericsson XPERIA X8
Contributors
mamutos
Kernel Special Features:
Version Information
Status: Testing
Created 2013-11-05
Last Updated 2013-11-05
I compiled the first version, but have probably a bad ramdisk, not even the logo shows up and gets into bootloop.
I need nAa-jb-06 ramdisk. @nobodyAtall Can you share it with me ?
Thanks.
1. We need a "little bit" more information about this project
2. The kernel is GPL protected, need the source (to identify what is your work and who worked with the kernel earlier)
3. The "original development" section need at least one idea what not exists on this device.
4. The "GPU overclock": with the msm7x27 SoC, the GPU clock is LOCKED, always run on the axi bus speed, you can't set it separately. You can set the GPU speed if you play with the axi bus speed in the acpuclock.c, but this is not a new idea.
5. The overclock of the GPU in our msm7227 SoC is theoretically unusable, because our adreno200 is cpu limited in most case. Just check the same gpu in the qsd8250, and you can see, with more powerful cpu this gpu can perform much better (on same clock)
This is NOT an offense, I just point to some thing before tons of idiot questions arrived about the project.
So, better if you correct the opening post and give the required informations, and folloew the forum rules (before you get a warning from a moderator, for example: due the missing sources)
PS.: you can cut the ramdisk from the precompiled nAa-06 kernel. I you have the knowledge to make new gpu overclock method, this is easy work...
PS.2.: Okay, just find the lz4 header in the kernel.sin, and delete everything before this and you can get the original nAa-06 ramdisk
Last note: maybe I wrote incorrect informations, the more experienced members/developers can correct it.
EDIT: the to overclock the gpu on all xperias is nonsence, because the xperia family have different gpus. (the most is adreno powered, but the phones with novathor SoC have Mali 400MP, or the xperia C have PowerVRSGX544)
I don't understand this kind of thread , first test then post it and do a favor for all do not create it in original DEV section this is not belong here .
Thanks whore?
Sent from my E15i using Tapatalk 2
pilu1978 said:
4. The "GPU overclock": with the msm7x27 SoC, the GPU clock is LOCKED, always run on the axi bus speed, you can't set it separately. You can set the GPU speed if you play with the axi bus speed in the acpuclock.c, but this is not a new idea.
Click to expand...
Click to collapse
I don't knew that. Sorry
Topic to remove.
Yet again this highlights the fragmentation of development here.
@op - I you had performed a search or even browsed here a little you would seen active kernel development.
You unwillingness to ask to join such a group of guys or even just post in their threads to contribute leads me to thinking you're a glory hunter.
And then when you ask nAa to just send you his ramdisk I honestly nearly wet myself.
Thanks for the laugh chap - I'm even gonna thank you for it
Q&A for Kobo Arc Development
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for Kobo Arc Development. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!
Kobo Arc 7HD OTG
ginco95 said:
Does somebody know how to enable usb otg on rooted Arc 7 HD?
Click to expand...
Click to collapse
DoPa made a patch to give OTG to the Sero 7 PRO (sero7pro-usbotg-dopa-v1.1.zip)
(See http://forum.xda-developers.com/showthread.php?t=2470998)
Could this be used to give OTG to the Kobo Arc 7HD or could it be modified to do so?
If this can be done, please give instructions about how to install patch to the Kobo Arc 7HD.
Thanks
stock rom
can someone please provide a download link for the original kobo arc 7 android 4.2.2 jellybean firmware zip cause I was such an idiot and I didn't back up data and I try to make a custom rom and the device is now bricked with boot loop adb doesn't work and fastboot doesn't work either please provide a download link
Kobo Arc (OLD), status?
Hi guys,
I've just read through the whole thread and frankly it just gave me a headache. I'm a software developer and I'd like to help, but I have zero experience with android or Cyanogenmod so I need some help. I have the OLD Kobo Arc and I'd love to be able to install something more recent than the latest official ancient Android 4.1.1 system update. So, let me fire a few questions:
1. Can anyone quickly summarize where we are with the OLD Kobo Arc? Do I understand correctly that you guys have so far managed to root it but unfortunately all attempts to go any further have failed?
2. Considering that the Kobo Arc has the same SoC (omap 4470) as the Nook HD+, what are the chances of cm-10.2.1-ovation.zip working (as far as I can see this is the latest for the Nook HD+ - sorry I can't post the link)? Of course there can be all kinds of different drivers required for the two devices, but chances are that they could be both based on the same or similar OEM designs. At least could this be used as basis to create a Kobo Arc variant?
3. Has anyone tried the Nook HD+ image?
4. All things considered, what is the next step towards a working rom?
Kobo arc 7 rom needed
my kobo arc 7 crashed cause i install chainfire 3d and now it is bricked and stuck in boot logo i need the stock rom cause i don't have any backup. can someone please give a link to download the kobo arc 7 stock android 4.2.2 rom
RC Files and thoughts on Custom Kernel
Hi, I am a new user here and in my attempt to give a reply to this user in this development thread , I got some weird restriction.
Anyway I have attached the .rc files that exist on my device. The init.carrier.rc and init.environ.rc did not exist on my device. This device is a KOBO ARC 10HD.
In addition, I have also been playing around with the kernel sources for the 10HD in particular, and as you can see from the screen shot below I am currently running my own custom kernel build.
Frankly I do not know how useful a custom kernel is since many of the special features are so heavily coded. Take the cpu governors for example, the way in which the cpufreq features are implemented make adding governors somewhat useless. There is a tegra cpufreq driver that parks the device in userspace, and decides based on the user interaction which governor is used. I suspect this has to do with the power saving features built into the stock ROM as well. In essence if I add let us say, a new governor, even if I select it as my preference the tegra cpufreq driver still has control, and defaults back into userspace once again.
Releasing userspace control of the CPU, GPU, and Cpuquiet parameters [Kobo Arc 10HD]
As some of you may have realized, it is impossible to successfully change some cpu, gpu, and cpuquiet related settings (ie. governors). This is due to a unified user daemon running in the background that constantly monitors and regulates the cpu, gpu, and cpuquiet (hot plugging) components. This means that you cannot change any of these options without them being immediately changed by this unified user daemon in userspace.
I had initially thought that this restriction was the result of a userspace kernel implementation, but it is simply a really annoying daemon messing with the kernel parameters.
To disable this functionality cleanly rename "/system/bin/ussrd" to "/system/bin/ussrd.bak" so that nvusd cannot initialize it.
This gives you complete userspace control over all cpu, gpu, and cpuquiet parameters! Do not touch the ussr_setup.sh, or you will lose important permissions to certain parameters. Do not do anything crazy like set the min and max frequencies to 51 MHz! The power saving features still work!
Good luck! Tell me if this solves your governor problems . . .
I have never rooted it or touched my g850 's kernel, it is 5.0.2 lollipop and kernel version is 3.10.9-8213318.
I want to benchmark performance and power consumption on exynos5430 with HMP scheduler and Energy Aware Scheduler.
I have questions about this.
Is my g850's kernel include HMP scheduler(Global task scheduler)? I mean, does it applied on my kernel and my g850's processor is running with HMP Scheduler without any configuration?
And, If I want to compile 3.18 kernel which include Energy Aware Scheduler, what kind of defconfig do I have to use?
I checked arch/arm/config, but there are only arm's fundamental defconfig files.(like acs5k, armadillo, exynos, versatile .... etc)
Is there any defconfig for g850? or can I use 5430-base_defconfig(I can't paste link here)?
If I compiled 3.18 kernel, How can I install it on my device? I tried to unpack original rom and change kernel image, but it's md5 file, so I dunno how to. Is there any ONE SIMPLE WAY to just install my zimage on my device? or appropriate guide to install it on g850. I found bunch of guides on google, but most of the uses nexus.
I'm so desperate to do this, I wish I can get an answer here. Thanks