[REF][KERNEL] ✰ The Official Vibrant Kernel ßible Thread ✰ → 07/27/12
Hello members, this thread is NOT limited Specifically to Kernels only.
If you have Used a Mod or know of a Hack that you want to pass on, please share it here & I will Thank, credit you and post the link here. 03/20/12
If you have Used a kernel worth a shout out, please PM me that Kernel Features & information such as
Name of your Sizzle
Type of Rom it supports Froyo, Ginger Bread, Ice Cream Sandwich . . or 2.2, 2.3, 2.3.6, 3.0 or 4.0
GPS MOJO POSSESSION
Customizable settings Type
How to install
Tips and Suggestions
Link to your Sizzle, Sourceforge or Facebook Group
Please be detailed as possible so that your craft will be listed for members here at the Samsung Vibrant Development Section.
If a link goes down, please let me know via PM and I will get right to it...
If there is a Kernel that I forgot, PM and I will get right to it...
If there is one that was incorrectly listed, please PM me and I will get right to it.
Todays or Editing Date Update Section Color = Red
9FROYO Kernels Section Color = DarkOrange
12GINGERBREAD KERNELS Section Color = Green
12CM7 KERNELS Section Color = DarkTurquoise
12MIUI KERNELS Section Color = Tomato
12CM9 KERNELS Section Color = DodgerBlue
11ICE CREAM SANDWICH KERNELS Section Color = MediumBlue
Cleancache provides a place where the kernel can put pages which it can afford to lose, but which it would like to keep around if possible. A classic example is file-backed pages which are clean, so they can be recovered from disk if need be. The kernel can drop such pages with no data loss, but things will get slower if the page is needed in the near future and must be read back from disk. Like Cleancache, Frontswap can play tricks with the stored pages to stretch its memory resources. The real purpose behind this mechanism, though, appears to be to enable a hypervisor to respond quickly to memory usage spikes in virtualized guests. Dan put it this way:
Frontswap serves nicely as an emergency safety valve when a guest has given up (too) much of its memory via ballooning but unexpectedly has an urgent need that can't be serviced quickly enough by the balloon driver.
ZRAM (aka CompCache aka RAMZSwap)
ZRAM is an updated version formally known as CompCache and RAMZSwap. It was originally designed for 2.6.38.xx kernels, I have backported to our 2.6.35.xx kernel. ZRAM allows real-time compression of memory objects in RAM thus reducing memory pressure for the Linux kernel and can keep more apps in memory longer (more apps in RAM == better performance, less fetching from slower MMC or SDCard). Compression, however, is not Free. Some CPU cycles are required to do the compress/decompression, so there's a slight penalty for it. The original CompCache / RAMZSwap required a user space binary to control its behavior which adds additional penalty to performance, but the new version ZRAM eliminated the need for a separate dedicated daemon, thus reducing the overhead and increased performance from the old CompCache by 20%. Therefore, with the newer implementation of ZRAM interface, the performance penalty is almost negligible.
Joe's RCU (Optimized for Small SMP systems)
Joe Korty has created an RCU for small SMP systems (> 32 cores). His approach is to isolate all the Garbage Collection (GC, a slow time consuming but necessary processing) to a single core, thus allowing other cores to ONLY work on real required processing. This will allow the additional cores to complete their assigned tasks as fast as possible (not bogged down by GC) then immediately go back to a suspended state (saving battery).
Fast No Hz RCU (Optimized for SMP operations)
Fast NoHz is an optimized version of the traditional Tree RCU. Many new kernels are using the Tickless NoHz design. This RCU is tailored and designed to work with the new NoHz kernel system.
SmartAssV2 Governor (Balanced)
This governor has a built-in "profile" similar to SetCPU, so screen off will use lower clock rate thus conserve more battery, but it also has a fast wake up feature so that user interaction will not see the lag when switching from Sleep to Wake state.... (So SetCPU Profiles are sorta redundant when using this governor, you can still use SetCPU to OC to higher than default Clock frequency).
Interactive Governor (Performance)
This governor is designed to put more priority to User Interface (UI aka Apps) tasks, therefore appears more responsive then the traditional OnDemand governor. So if you want the smoothest UI interaction, this governor is for you...
Brain F*ck Scheduler - (BFS)
This scheduler is designed to be simple and speedy tailor specifically for user interface type systems such as desktop/smart phone devices where user interaction is MORE important than serving 1 million web requests (CFS, the default scheduler) at the same time (think of nimble desktop workstations vs large corporate servers).
SLQB - (SLAB allocator with Queue)
This memory allocator is designed for small number of CPUs system (such as desktop or smart phone devices). This allocator is design to be simple and it is optimized for using order-0 pages as much as possible (order-0 pages are the simplest therefore quickest type of memory in a Linux system to allocate). Not all kernels are using SLQB including CM7 main line...
Fair Budget Queue (BFQ I/O scheduler)
This I/O scheduler is an improvement on top of Completely Fair Queue (CFQ). CFQ is fair in terms of time but not in terms of throughput / bandwidth, so BFQ make sure that both time and throughput / bandwidth are balanced across all requests.
As a learning experience, I decided to give kernel developing a try. Tigers Blood is the result. I wanted to make a kernel with some OC/UV capabilities, but yet stable enough for the everyday user. I took a minimalistic approach and by default, the kernel is at stock clocks and voltages and will clock to 1.2 Ghz.
Voodoo Sound v7
Vodoo Lagfix with modified Clockwork Recovery
BLN (Neldar's free version of "BLN Control" is included - Please donate to Neldar or buy the full version in the Market if you like his work - Full version allows blinking backlights)
CIFS ("Mount Manager" in the Market will get your network drives mounted)
339 MB Ram Hack
OC/UV capable to 1.2 Ghz (Stock clock and voltages out of the box)
LIPPOL94's kernel cleaning script integrated into flash package
SetCPU's 400/100 screen off profile safe to use, but not recommended.
The cleaning script is integrated into the flash package, so it will clean before the kernel actually flashes, once its done and you reboot, it will take a little while longer to reboot since the dalvik-cache is wiped.
It is safe to use a screen off profile with 400/100 setting, but i do not recommend it.
The splash screen is the same skull from my froyo kernel, but it has "CM" on it. If you dont like skulls or my splash in general, plz use another kernel. And NO, i won't change or make another version of it, so plz don't ask.
My beta tester, Skitz, has reported low quad scores with this. If you are a person concerned with benchmark scores, then this isnt for you. Quads don't make the kernel, the performance does.
Running OMFGB so i know this will work on that and regular CM7, i hear that CM7 kernels also work on MIUI, but i have not personally tested it on it.
Changes in LED handling. (Possibly fixes most remaining issues.)
You need this to control the LEDs CMParts see here to install properly (Doesn't install like a regular apk, the reason is its not really an app, it's part of CM7 with modified setting panel for LEDs)
LED on on resume has been disabled for now (keyboard woes - I think.)
Touch key: Enforce recovery routine during r/w failures (Fixes: Touch keys flash and stay off when missing a call - Possibly other weird situations.)
LED stay on when screen off as long as notifications are not deleted. (Due to popular request.)
Fixed liblight for quiet hours/LED issue.
Touch keys light up at resume for a short time. (Like Samsung ROMs)
LED notification respects CyanogenMod's 'Quiet hours' (Settings -> Cyanogen -> Sound -> Quiet hours) Setting LEDs to dim during quiet hours will disable led notifcations during those hours (So it's like BLN schedule except its using the CM feature.) - Thanks for that suggestion.
Fixed keys light time out. (I was being dumb with calls during interrupts, sorry.)
DELETE ALL VOLTAGE CONTROL SETTINGS, AND REMOVE BOOT SETTINGS FROM CM SETTINGS AND VOLTAGE CONTROL AND DISABLE SETCPU PROFILES BEFORE FLASHING THE LATEST UPDATE. THIS GOES FOR ALL UPDATES, INCLUDING UPDATING CM.
This is a CM7 based kernel with a 1.6 Ghz overclock, Voodoo sound and color fixes, uv support, and BLN. See the changelog for all the updates and features.
Informations (THESE CHANGE ON A REGULAR BASIS):
Max clock is set to 1GHz on the first boot, set the max clock in CM settings or voltage control or setCPU.
I cannot possibly stress this enough. IF YOU EXPERIENCE BUGS WHILE ON THIS KERNEL, POST HERE. Do NOT submit bug reports to the CM team, until you have flashed back to stock CM, and can verify the bug exists there too.
Use Xan's UV app to undervolt.It's in that market, search "Voltage Control".
Want to go back to stock? First, if there's any particular reason, please let me know. I love to feedback, good or bad. Then, just flash the latest official update.
This kernel is based on teamhacksung's kernel, with updated Linux base to 3.1.10
this is a first release for the vibrant, so please take it as "beta", although everything should work fine This kernel is based on teamhacksung's kernel, with updated Linux base to 3.1.10
Kernel working with all ICS Roms
Brain **** cpu-scheduler (BFS) (this should be much faster than the default cpu scheduler) will be back later
378, 391 and 403 Mb Ram available (selectable in kernel, no need for a patch (403 mb breaks 720p) only reboot required)
2 different recoveries included (cmw touch recovery + twrp recovery)
SIO scheduler (default)
V(R) scheduler (maybe even faster than SIO, can be set as default by using NSTools for example)
Voodoo Sound and CM9 Color Adjusment / Voodoo Color (VC version)
BLN V9 (thx to mialwe)
USB Host mode driver (for more information about this, and for saying thanks to the guy, who ported this for our phone, please visit this thread)
Ezekeel's Deep Idle V2
vibrator intensity control (by mialwe)
BLX (Batterie Life Extender, I don't think we need it, but maybe one feels better by using it )
backports from Linux 3.2
Zcache, Cleancache and Frontswap
Smooth_ui included to ondemand, conservative, smartass, lulzactive, lagfree and lazy governor (only one setting for activating/deactivating it in general)
3 cpu governor presets (smooth, normal, powersave) for ondemand, conservative, smartass, lulzactive, lagfree (only one setting for switching the mode in general)
many other small features and improvements
some changes to load balancing
added ultra ksm (metioned by zach thx for this my friend)
readded fiops io scheduler (still experimental and could cause instablilities)
using snappy compression for zram now (2 times faster, but only 2% less compression)
added the possibility to change zram size (at /data/local/devil/zram_size, with valid values: 50, 75, 100 and 150 (all in mb))
fixed the applying of user_min/max freq after reboot
ICS Kiss V4.1 (kernel)
Alt Source & Downloads Here
Added audio dock support
Made revisions to smartass2
Voice audio through dock
Adjusted wifi for stability
OC to 1500 (Many devices will not run this high, but it's there for the adventurous. apps could close unexpectadly and your phone may freeze and rebbot. Be sure to uncheck set on boot in NSTools before trying. Use at own risk)
"Thus it would be nice to have some way for the user to individually adjust the bus speed to match the overclocking capabilities of their device. Unfortunately with TEUV the bus speed has to be defined on compilation time thus the only way would be to release different versions with different bus speeds which, frankly, would be a pain in the ass. So I implemented a way to change the bus speed on-the-fly while the device is running. In contrast to TEUV not only the bus speed for the maximum frequency but for all states is increased by the same percentage (might change this later, especially for the minimum state)."
GOO.IM, the Premium Android Developers File Hosting, If you don't have the app already, you can get it from: Google Play Store or Directly from their site : Note Great site with ample tools, apps, Roms, Stocks, Themes & Tools. Added 060812
Android Authority Great Portal with loads of tutorals with installing roms of many phone types and great content. Added 060812
Voodoo Color by master"supercurio" not to be confused with Project Voodoo, added on 060612, Basically Same Developer, Different Projects. Voodoo Color is a pack of high quality adjustments for Galaxy S screen. The screen technology used is Super AMOLED. Added 060812
Semaphore kernel website // They have a kernel based on the pawitp's and it works for Android 4.0.x ICS ROMs. Added 062512
My Media Scanner Binaries - SD Card scanned in 3 seconds!
Everything you need to get that Vibrant running and sounding great. It contains the following tweaks, for 2.2.1 and below (Probably great for Gingerbread too but not tested on ICS - if someone wants to test on ICS and let me how it goes, that would be great)
Chainfire3D Chainfire - 3d App at the market. Intermediary OpenGL driver. What does that mean? It means that Chainfire3D sits between your apps and the graphics drivers, and can intercept and/or change commands between the two. It has some built-in functions, and can be further extended with plugins to provide extra functionality. Added 04/14/12
I9000 GB Rom Porting Guide by Moped_Ryder, this is not a step for step tutorial, Moped_Ryder has laid the path and gathered the reference, links & knowledge base to assemble this great reference material for anyone with the skill sets and the willingness to learn being able to jump in to pick up some great android experience of creating roms of the I9000 GB port. Added 051312
The importance of good and appropriate graphics for your development work is undeniable. Be … more
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