Hello, I have few questions,What is "d2w"? what are the differences between "d2w" and "data2ext"? what type of the partition they support? I originally use FAT32+EXT4 with data2ext, if I want to use "D2W", what should I do with my current partition, do I need to change it? thank you.
D2W = Data To Whatever.
Supports EXT partitions. Every ROM or Script description has the information how many partitions you need and if you need to change.
E.g. for MIUI D2W you can use your current setup.
thank you
Hello,
After i have runed well supercharger , i want to swap mi sdcard. But many kernels does not support this. And i get error via adb (applet not found) , i have a sense based rom (rcmix) wich has already by 100-150mb ram free , but i want to have swap , wich kernel works for that?
unity and rcmix3d kernel both support swap...
your problem must be something else. How did you create your swap partition? (means you first have to format your sdcard and create a swap partition)
maybe redownload the script
EDIT: and use the thanks button if people try to help you... (i saw you posted your problem in different threads)
I have partitioned the SD , i add i tryed with two different SD cards. And not working , the error seems is because the kernel does not support it
xdadevolpers said:
I have partitioned the SD , i add i tryed with two different SD cards. And not working , the error seems is because the kernel does not support it
Click to expand...
Click to collapse
hm... never had problems with unity kernel (swap related), which version of unity do you use?
unity kernel v10 supports swap for sure
Ok solved , there was busybox version problem
i´m need a kernel with swap to extend the ram memory, i try that-- http://forum.xda-developers.com/show....php?t=1319816 -- the 3.0 kernel and i try with swapper but it dont work... i dont know if the kernel is right or i wave chose another?
i want see tv online and the memory ram isn´t enough i need a litle more
Given the amount of RAM on our device, is there any plan to release a native gcc, binutils and maybe gdb? On another note are there any kernels that support swap?
I'm running CM10 Oct 5 atm and have tried on several previous nightlies to enable zram, but I'm not seeing a swap partition showing up. Am I understanding zram wrong? I thought it created a swap partition in RAM and then compressed that.
Hi friends,
This post is to share the important things,concepts related to android......
In this post, many things like roms,kernels,overclocking,undervolting,I/O shedulars,governars,RAM, swap,differnt swaps ,partitions (ext2, ext3, ext4 )are ported....
If something missing or wrong plz tell me and i will add in this post...
I hope this post will help you to improve knowledge...
So lets start....
[1] ANDROID:
Android is the linux based operating system, designed primarily for touchscreen mobile devices like smartphones and tabs..
Android is an open source and google releases the code under the Apache Licence
Following are the versions of android :::
1) 1-1.5 --- Cupcake
2) 1.6 --- Donut
3) 2.0-2.1 --- Eclair
4) 2.2-2.2.3 --- Froyo
5) 2.3-2.3.7 --- Gingerbread
6) 3.0-3.2 --- Honeycomb
7) 4.0-4.0.4 --- Ice Cream Sandwich
8) 4.1-4.2.2 --- Jelly Bean
After knowing about Android,
Lets move towards deep....
[2] Android Rooting:
Android Rooting is process of allowing users which are using Android system to attain privileged control (i.e. Root access) within Android Subsystem.
Rooting is required for more advanced and potentially dangeorous operations like deleting,modifyig system files etc..
Their are many methods for rooting our galaxy y
Most easy method i found is at the thread
http://forum.xda-developers.com/showthread.php?p=29960454
[3] ROM ::
A file containing the executable instructions (the system image ) of an Android operating system & apps is ROM (read only memory)
after rooting your phone you are free to flash any custom rom
FLASHING ROM: flashing rom means installing the system image into device's internal flash memory...
Their are many custom roms available for our galaxy y..
Cyanogenmod, BeautySense, Creeds Rom, Fusion Rom ,
Repencis ROM, Infected ROM Blazed, COD Rom , U.S.S.R, Thunder ROM , EVO-X, CHOBITSDIGITALIS ROM ,
WeUI by amal das, M.U.R, MySS, emralD, xXxxxX MIUI XxXxXx, WinterMod Evo , WP8-Monochromatic 6.0
ACCEND
Links of all these roms will get from thread:
http://forum.xda-developers.com/showthread.php?p=31329931
[4] KERNELS::
Kernels isn't something unique for android, but all O.S. i.e. Windows, Ios, Blackberry, have kernels..
Android devices uses Linux Based kernels
In simply words, the hardware and the software communicate each other by using kernels...i.e. When software needs hardware to do anything it sends that request through kernels..
Most of the things like brightness of screen, volume, is controlled by kernels...
Kernels decides minimum and maximum frequency of CPU,
Overclocking, undervolting are all done by using kernels....
Some of the kernels available for galaxy y are Savie kernel, Merruk kernel, Hells Fusion Kernel, Kuro kernel, White kernel, Repencis Kernel, Deviant kernel etc.
( their are many other kernels list of all the kernels is impossible)
[5] Governers and I/O shedulars::
For understanding both the above terms please read the following post::
http://forum.xda-developers.com/showthread.php?p=19846276
[6] Overclocking:
Android
overclocking increases the
maximum frequency (or speed)
that your CPU can run, thereby
increasing performance of your
Android smartphone or tablet.
Many kernels for our galaxy y uses overclocked frequency..
By overclocking, overall performance of phone increases, we can play hd games lag free..
Only the disadvantage of overclocking is that mobile gets heated fastly....
Most famous kernel for overclocking galaxy y is merruk kernel...
[7] Undervolting::
Kernels are used to undervolt phone...
Undervolting means force the smartphone to work at lower voltage than normal voltage..
Due to undervolting battery backup of phone increases...
After all such part.....
[8] RAM (Random Access Memory)::
It is temporary data storage that the CPU uses during calculations. The more RAM a device th more calculated results the CPU can store.
Which means less time the CPU has to do the same thing over and over again.
In other words, th CPU can check RAM to see if it has already made a particular calculation in the recent past. If it has, it can use the pre-computed results instead of wasting proccessing time in recomputing the same calculation.
In short , more RAM means more efficient the device....
[9] Swap:
swap is nothing but virtual RAM. Using swap a small portion of hard drive is set aside and used like RAM
The great guide how to increase RAM using swap file and swap partition is given here :
http://forum.xda-developers.com/showthread.php?p=26220059
ZRAM:
To know about ZRAM please click the link:
http://forum.xda-developers.com/showthread.php?p=34877656
[10] Cache:
Many times you read the word cache...so
Cache is general type of temporary and quick access data used by the system or user(third party) applications...
Or any temporary information used or created by app is cache..
[11] Dalvik cache:
This word is also read by us many times..
Dalvik is the process virtual machine (VM) in Google's Android
operating system . It is the software that runs the applications on Android devices. Dalvik is thus an integral part of Android, which is typically used
on mobile devices such as mobile phones and tablet computers
Programs are commonly written in Java and compiled to
bytecode. They are then converted from Java Virtual Machine - compatible .class files to Dalvik-compatible .dex
(Dalvik Executable) files before installation on a device. The compact Dalvik Executable format
is designed to be suitable for systems that are constrained in terms of memory and processor
speed.
[12] JIT ::
JIT stands for
"Just In Time," and we use it to
describe a Dalvik JIT compiler,
which was added to Android with
the 2.2 release. It compiles
bytecode into native machine code at runtime. Essentially it takes the code for an app, analyzes it and converts it into something that runs faster. It does all this while the application is running, and that's where the "just in time" tag comes from. The JIT compiler designed for Android also can do this with a very short "warm up"
time, meaning it doesn't take very
long to analyze the code before it
starts working. It stores information in a cache in your
phone's RAM, which means it's not an ideal solution for devices with low memory.
[13] a2sd or app to sd:
app to sd is nothing but to move the app in external storage instead if internal storage....
Some apps are used to move apps in sd card
Some of the kernels also support a2SD....
[14] Linking app to SD:
their is difference between app 2 sd and link 2 sd ...
Link 2 sd means to create a separate part in external storage by specific linux file system such that it bahaves as internal storage and then move the app to that particular memory...
Following are the mainly used file systems....i.e. Partitions...
Partitions:
ext2, ext3 and ext4 are all
filesystems created for Linux i.e. For android..
Ext2
Ext2 stands for second extended
file system. This was developed to overcome
the limitation of the original ext
file system.
Ext2 does not have journaling
feature.
On flash drives, usb drives, ext2 is
recommended, as it doesn’t need
to do the over head of journaling.
Ext3
Ext3 stands for third extended file
system. The main benefit of ext3 is that it
allows journaling. Journaling has a dedicated area in
the file system, where all the
changes are tracked. When the
system crashes, the possibility of
file system corruption is less
because of journaling. You can convert a ext2 file system
to ext3 file system directly
(without backup/restore).
Ext4
Ext4 stands for fourth extended
file system. Supports huge individual file size
and overall file system size.
You can also mount an existing
ext3 fs as ext4 fs (without having
to upgrade it).
Several other new features are
introduced in ext4: multiblock
allocation, delayed allocation,
journal checksum. fast fsck, etc. All
you need to know is that these new
features have improved the
performance and reliability of the
filesystem when compared to ext3.
In ext4, you also have the option
of turning the journaling feature
“off”.
I hope this thread helpded you if anyone wants more about something then plz post in the thread ...
If anything in the post is wrong ,missing tell me.....
Special thanks to
CarlDeanCatabay,
droidphile,
-CALIBAN666-,
manornjan2050,
Omaxe,
And all other devs........
You can press thanks if it doesn't cost you....
Sent from my GT-S5360
Reserved
Sent from my GT-S5360
Well that is some nice compilation ....
u cud make it more attractive...adding more formattings and stuff :good: