Related
Hi everyone!
I've been investigating what's behind frequency, voltage, governor and scheduler changing inside Nova script and in the process wrote a little script of my own which does the same. Nice little practice to learn sh shell scripting as well. However there is this annoying problem with governor getting overwritten on boot by some other process. I detected that this happens after about 5..10 seconds when my init.d script set's it's own value. Simple solution would be just to wait 10..20 seconds and then set the governor. But I'm using the same script inside both init.d and after the boot and there is no need to sleep then.
So to my question: how can I detect if the script is running at boot or not?
Regards,
Aprold
Well, I just got an idea to compare environment variables and there is one difference: ANDROID_SOCKET_zygote does not exist at boot yet. I'm wondering if this can be used and is it a reliable detection? What initializes it and when? However, I'm sure there must be better indicator than this.
It works! Well, at least for me. I'd be happy to share this with all of you but run into a tiny-tiny problem. Naturally I wanted to post this on development sub-forum but since this is only my 6th posting here then I was greeted with the following friendly message:
New members (those with fewer than 10 posts) are not permitted to post to development-related forums
Well, what can I do? Come up with 4 more questions for you? And I mean serious ones. I really don't want to annoy you with silly questions like 'When CM port is going to be ready?' and then 'Is it ready yet?' 3 times in a row Or if my head is too empty at the moment then ask only 2 questions and try to answer them myself?
I'll think of something. In the mean time I'll use these moments between new posts to test my script thoroughly.
Thank you for reading my 6th posting this far Others will follow and the time will soon come when I'm mature enough to post on development forums. Wow! OK, I'll end this now. Thanks again and have a nice day.
Hi!
Can U explain a little bit in what consist your discover and in which form it will help us?
Reply: 'Aha... I see, I see..." in every post you see...
Hi, Huexxx!
Appreciate your work and thanks for giving me the opportunity to increase my post counter!
Looking at Nova script the first emotion was confusion of course. Not that this script was awful or anything but there was simply too much overhead for me and I wanted to write a script that would be as short as possible and would do the same things. Well, I left out application injection part and such but frequency, voltage, governor and scheduler things are in. There are around 200 lines in this script right now together with some comments. Not counting several one-liners this was really my first shell script ever and therefore I don't run for absolute truth with it. Coming from C-world I just wanted to do some things differently and learn new things in the process. You'll see the code soon enough and see for yourself.
Concerning the governor I made a loop of 10 iterations in my init.d script to set and get the active governor once a second and noticed that on 7th, 8th, or 9th step it was changed to 'ondemand' by some other process. Would it be possible to identify this process? Or perhaps someone knows the inner workings of Android well enough to explain which process it was and why it sets the governor there? I should probably say that I was not running any other CPU state management applications.
Now I just added this line to my script:
Code:
[ -z "$ANDROID_SOCKET_zygote" ] && sleep 30
and the governor was set after the sleep.
Only 3 more messages to go
There! I was too weak to resist the temptation
I learnt bash by writing the Nova script.
Either way, I plan to completely rewrite it for the next version.
As for the governor, I too faced problems with setting it on boot, but it's working now.
Hi, knzo!
Appreciate your work as well! Keep it up! Never going back to stock firmware again!
Looking at your egov script pointed me to the right direction on governor problem. Made me search for the reasons why you set up a service that ran 3 times at 3 minute intervals. Is there a downside in my solution that simply waits a while and then sets the governor? Since it's only sleeping there then every other process is unaffected. Less code at least. But as you set up other services as well then it doesn't hurt to set up one extra I guess.
The trouble with bash is that it's not even bash we're using but sh which is not as advanced as the former. BTW, is it possible to include bash in there as well?
Big thanks to you anyway!
Regards,
Aprold
aprold said:
Hi, knzo!
Appreciate your work as well! Keep it up! Never going back to stock firmware again!
Looking at your egov script pointed me to the right direction on governor problem. Made me search for the reasons why you set up a service that ran 3 times at 3 minute intervals. Is there a downside in my solution that simply waits a while and then sets the governor? Since it's only sleeping there then every other process is unaffected. Less code at least. But as you set up other services as well then it doesn't hurt to set up one extra I guess.
The trouble with bash is that it's not even bash we're using but sh which is not as advanced as the former. BTW, is it possible to include bash in there as well?
Big thanks to you anyway!
Regards,
Aprold
Click to expand...
Click to collapse
Yeah Bourne shell sucks! I've suffered a bit learning how to extract a part of a string while in bash it's so easy...
The objective of this thread is to answer the commonly asked questions, give the newbies a little head-start, protect them from getting flamed and keep this forum focused on more important things
1 > What is root?
If you’re an Administrator on a Windows machine, you have access to the entire operating system and you can do whatever you like. That’s essentially what happens if you root your Android device. With root access, you can get around any restrictions that your manufacturer or carrier may have applied. You can run more apps; you can customize your device to a greater degree; and you can potentially speed it up in a variety of ways.
Click to expand...
Click to collapse
Basically, Rooting a phone grants you the permission to do stuff you normally aren't. Remember that the process of Rooting itself will not change anything on your phone or make your your faster. It is what you do 'after' rooting that makes a difference. Rooting just allows you to make changes that were previously not allowed.
2 > Why to Root?
One of the most obvious incentives to root your Android device is to rid yourself of the bloatware (apps that come pre-installed with your phone) that’s impossible to uninstall. You’ll be able to set up wireless tethering, even if it has been disabled by default. You can also access your entire file system, install special apps that require a root, and flash custom ROMs, which can add extra features and streamline your phone or tablet’s performance. A lot of people are tempted by the ability to completely customize the look of their phones. You can also manually accept or deny app permissions.
Click to expand...
Click to collapse
You can also get the latest android version before HTC releases it. For example we have Jellybean (4.1.2). HTC has not officially released it for our phone. Mostly they never will! You can also overclock (increase the speed of your CPU) your phone!
3 > Why not to root?
There are essentially three potential cons to rooting your Android.
Voiding your warranty: Some manufacturers or carriers will use rooting as an excuse to void your warranty. It’s worth keeping in mind that you can always unroot. If you need to send the device back for repair, simply flash the original backup ROM you made and no one will ever know that it was rooted.
Bricking your phone: Whenever you tamper too much, you run at least a small risk of bricking your device. This is the big fear everyone has. The obvious way to avoid it happening is to follow instructions carefully. Make sure that the guide you are following works for your device and that any custom ROM you flash is designed specifically for it. If you do your research and pay attention to feedback from others, bricking should never occur.
Security risks: Rooting may introduce some security risks. Depending on what services or apps you use on your device, rooting could create a security vulnerability. For example, Google refuses to support the Google Wallet service for rooted devices.
Click to expand...
Click to collapse
You must be willing to compromise with these factors before you decide to root. Personally, I haven't regretted my decision of rooting even for a second! I'm sure most of the guys on this forum feel the same way. However it is your choice.
4 > How do I root my phone?
You can either use this step by step guide
Or use this All-in-one Toolkit
5 > What is Recovery?
A recovery is a small distinct environment separate from Android that allows diagnostic updates, and the ability to perform factory resets. The main purpose of this is to provide a way to reset an Android device when it may be impossible to boot into it.
The Android stock recovery is very basic and controlled via the volume keys and power button at the top of the device.
Custom Recoveries perform the same tasks as the stock-Android recovery with a few addition features, such as the ability to make full system backups, as well as flash custom roms. It is important to note that custom recoveries are recommended to those users with rooted devices, however a rooted device is not required. Anyone with an unlocked bootloader can install a custom recovery on their device.
Click to expand...
Click to collapse
Basically, Recovery saves your ass when you screw up! But it has many other important features.
6 > What are the different Recoveries available for HTC Desire C?
Currently there are two recoveries available for HTC Desire C.
Team Win Recovery
Clockwork Mod Recovery
7 > How do I install a recovery?
Follow Step 3 of this thread. But instead of the link provided there, use one of the two links I posted in the previous question.
8 > Which recovery is better?
I use TWRP because I find it user friendly and it has got more functions.But CWM is more famous and widely supported. You can choose what you like.
9 > What is a Custom ROM?
A stock ROM is the version of the phone's operating system that comes with your phone when you buy it.
A custom ROM is a fully standalone version of the OS, including the kernel (which makes everything run), apps, services, etc - everything you need to operate the device, except it's customized by someone in some way.
So what does the "customized" part mean? Since Android is open source, developers are free to take stock ROMs, modify them, strip them of garbage, optimize them, add things, and pretty much do whatever their imagination and skills allow.
Click to expand...
Click to collapse
My definition - A Custom ROM is a developer's idea of what the phone 'should have been like'. He takes the stock rom and modifies it to improve performance, looks, animations, battery life etc.
10 > Why to install a Custom ROM?
Updated versions: You can load the latest and available Android versions which can make your old phone look new.
Great number of feature filled custom ROMs: It will be a chaotic task for you to find the apt one as there are bunches of great custom ROMs available for different devices.
Personalization: There are a number of features that can be customized to suit your taste and working environment. For instance, Custom themes can bring a new look and feel to your device.
Improve performance: The custom ROMs allow its users to find out the unnecessary apps they have on their device and helps them to get rid of them, thus increases the speed of processing and improves battery life.
Install Apps on SD card: This is currently not possible with stock ROMs. If your phone ran out of space occasionally when install new apps this is a killer feature to have.
Better signal and quality: Custom ROMs help you to improve your base-band which in turn increases the signal and quality of your phone call.
Click to expand...
Click to collapse
Other reasons that you won't find on Google - "The thrill factor involved", "To show off to your friends" and "Because you can!"
11 > Why not to install a Custom rom?
Bricking: This is one of the main reason why people hesitate to root their devices. Some devices after the rooting process may become useless and the only option left with you is to get a new one as the manufacturer will cancel the warranty if they find any attempts of rooting.
Loss of all Data: When you install a new custom ROM, it will clean up your system and therefore you will loss all your installed apps and data.
Risk Factor: Most of the apps will be open source and the trust you have on developers may cause a potential risk to you in the future.
Reboot: If the rooting is not successfully done, the device may enter to an infinite loop of booting.
Click to expand...
Click to collapse
Even though this may seem concerning, it will happen only if you don't follow instructions correctly or do something extremely stupid. As of now, there is no way to completely brick an HTC Desire C! You can fix 'Loss of Data' by taking a backup and you can fix reboot by using the Recovery mode we discussed earlier.
12 > What are the different Custom ROMs available for HTC Desire C?
Look HERE. Take your pick!
13 > Which is the Best ROM for this phone?
NEVER EVER ASK THIS QUESTION!! This is a very subjective question. It differs from person to person. It takes a lot of time/energy/efforts to build a custom ROM and asking this question is a very big insult to the makers of these ROMs! Try out different ROMs and choose what you like.
14 > What is a Kernel?
The central module of an operating system. It is the part of the operating system that loads first, and it remains in main memory. Because it stays in memory, it is important for the kernel to be as small as possible while still providing all the essential services required by other parts of the operating system and applications. Typically, the kernel is responsible for memory management, process and task management, and disk management.
Click to expand...
Click to collapse
If our phone was a movie, the Kernel would be the director! It is the brain of our phone. And even though it is the most important part of our phone, it is just a single (.IMG) file and only a couple of MBs!
15 > What are the benefits of a custom Kernel?
Adjust CPU frequencies and set profiles like OnDemand, Battery Saving, etc.
Underclock and overclock CPU speeds
Underclock and overclock GPU speeds
Adjust voltage
Adjust touch screen sensitivity
Equip your phone with BLN (backlight notifications)
Custom recovery that allows backups and restorations of entire ROMs as well as installation of .zip files
Minimum screen brightness pushed past the limitations of stock kernel
Conserve battery (with the right settings)
Click to expand...
Click to collapse
There are a lot of Technical advantages of a good coded custom kernel. Fortunately, you don't have to worry about all that. Most of the work is done by the developer himself.
16 > How to flash (install) a custom kernel? OR How to flash boot.img?
You can either use this Auto Boot.img Flasher
Or read this
17 > Which is the best Kernel for this phone?
NEVER EVER ASK THIS QUESTION!! This is a very subjective question. It differs from person to person. It takes a lot of time/energy/efforts to build a Kernel and asking this question is a very big insult to the makers of these Kernels! And remember, not all Kernels are compatible with all roms.
REMEMBER - Use Sense Kernel with Sense ROMs. Use CM10 Kernel with Cm10 based ROMs. It can't get much simpler.
18 > How to overclock my phone?
You cannot overclock with a stock kernel. You MUST have a custom kernel to overclock your phone. Once you have a custom kernel you must install either 'SetCPU app' or 'NoFrillsCPU app'. You need any one of these to control the CPU speeds.
19 > Is it safe to overclock my phone?
I will not say this is completely safe. But i have yet to come across somebody who actually screwed up his phone just by overclocking. So use at your own risk. Also remember that all phones have a different capacity to overclock. If you try to overclock it higher than that, it will go into a 'reboot loop'. But you can fix that by flashing a lower frequency Kernel. It is not a problem.
Miscellaneous Questions > What is GAPPS?
Gapps is short for Google Apps. These are apps made by google like Google Maps, Playstore, Gmail, Google search etc. They are available to download in the Play Store and can also be flashed as a zip in recovery mode. For a complete list of apps click HERE. Not all Gapps are available in all countries.
> How to increase battery life? OR How to save battery?
Read THIS (Not only read it but apply it too! ) . If nothing else works, buy a better battery.
> Task Managers - Good or Bad?
Long story short - If you don't know what you are doing, Stay away from task killers. If you think that constantly killing apps will free more RAM and therefore speed up your device, you are mistaken. The app that you kill will restart itself and this will cause you more of your phone's resources than you think you saved. In fact, task managers do more harm than good. A lot of Developers agree with this. Android itself does a very fine job of managing tasks so that you don't have to mess with it.
Read this in-depth article on task managers HERE
> What is Clean Flash? What is Dirty Flash?
Clean Flash is wiping cache, dalvik cache and data before flashing a zip or installing a ROM through recovery.
Dirty Flash is wiping cache and dalvik cache only
Clean flash is much recommended and causes less problems down the road. If the instructions specifically ask to to clean flash, you must do so. You will lose all your data when you will clean flash. But dont worry, clean flash will not affect your internal or external memory card. You will lose your apps and settings and game data. Your phone will act like it is just out of the box.
You can Dirty flash when flashing small modification zip files. Or perhaps a minor update to the rom (unless the instructions ask you to clean flash). You will not lose any data while Dirty flash. But sometimes, you are more likely to face problems like apps closing which could have been prevented by Clean flashing.
Personally, i always clean flash when installing a new Rom. It is a good habit to follow in the long run.
> What is ADB?
ADB stands for Android Debug Bridge. It is a very useful tool. Using ADB, we can control our android phone using our PC. We can copy or delete files, install or uninstall apps, take a logcat, reboot our phone and a lot of other functions. Here is a really cool guide to ADB.
Here is the list of the common adb commands :
adb devices – lists which devices are currently attached to your computer
adb install – lets you install an Android application on your phone
adb remount – Remounts your system in write mode – this lets you alter system files on your phone using ADB
adb push – lets you upload files to your phones filesystem
adb pull – lets you download files off your phones filesystem
adb logcat – starts dumping debugging info from your handset to the console – useful for debugging apps
adb shell – drops you into a basic linux command shell on your phone with no parameters, or lets you run commands directly
> How to get a logcat?
There are basically 3 ways to get a Logcat:
Using an app (Catlog ; aLogcat ; Logcat Extreme)
Using terminal emulator
Using ADB
I personally use ADB whenever I have to take a logcat. Also, it is the only method where it is possible to take logcat when the phone boots (bootanimation).
For Method 3, connect your phone to the PC, open command window, navigate to C:\Program Files\Android\android-sdk\platform-tools
Then type
Code:
adb logcat > (any name).txt
Wait for some time as the logcat builds. Then press Ctrl+C to stop taking logcat. You fill find a .txt file in the platform-tools folder. That is your logcat! Now upload it to a site like Dropbox and post a link when required.
Make sure you have USB Debugging enabled when doing this.
> How does the thanks meter fill up?
ngoralph said:
1st bar - 26
2nd bar - 51
3rd bar - 101
4th bar - 201
bug here, never gets to 5 bars, probably 501 if fixed.
6th bar - 1001
7th bar - 2001
8th bar - 5001
9th bar - 8001
Maxed! - 10000
Click to expand...
Click to collapse
> User Titles on XDA
ngoralph said:
- Junior Member - New members with less than 30 posts.
- Member - Members with more than 30 but less than 100 posts.
- Senior Member - Members with 100+ posts.
- Recognized Contributor - A title given to members who have helped people with various problems. You can apply for this position or ask a Forum Moderator, Senior Moderator, Recognized Contributor to nominate you. They don't give it away for free though; you have to meet some requirements.
- Recognized Themer - A member who's known for original themes. You can apply to the Senior Moderators yourself, or ask a Recognized Contributor to nominate you.
- Recognized Developer - A title given to a member for his/her work in his/her device-specific development. You can apply to the Senior Moderators yourself. I don't think anyone can nominate you here. The developer committee assesses your overall activity and decides whether you're eligible for this position.
- Elite Recognized Developer - This title is given to Recognized Developers who have provided outstanding work, way beyond the knowledge of us mere mortals. A Recognized Developer is re-assessed by the developer committee before being given that title.
- Forum Moderator - This title is given to Recognized Contributors who are responsible enough to handle a forum on their own with some other such members of course. They have to fill out an application (which is no longer available now) and then the moderator committee approves of them.
- Senior Moderator - Senior Moderators are in charge of the whole site-wide support for Forum Moderators and nitty-gritty business that Forum Moderators cannot look after.
- Administrators - Next comes the admins who are responsible for everything as a whole. Each look after a specific part of XDA.
- MikeChannon's the dude behind all this. He's the Forum Administrator.
Other titles you may come across are
- Moderator Committee - sits on the Mod Committee
- Developer Committee - as above, but for Developer Committee
- XDA Newswriter - publishes articles for the Portal (front page)
- Retired xxxx - have since officially 'left' their XDA position
Click to expand...
Click to collapse
Thread Layout Tips (by me4488)
Here are some basic Layout tips that will make your thread look more appealing, and pleasant to read.
1 > You need to have all of the basic 5 stepping-stones for every thread you create.
ROMS: Features, Requirements, How-to, Screenshots, Download links. (Optional: Notes/Warnings you may add)
KERNELS: Features, How-to, Download links. (Optional: Benchmarks)
THEMES, APPS AND MODS: Features, How to, Download links, Screenshots. (Optional: Play store links.)
GUIDES: FAQs, Credits, Links, Explanations. (Optional: Personal comments.)
2 > Optional but highly recommended.
Some of you guys let this pass over your head, but i cannot emphasize enough how much you need to have those.
CREDITS - Thank the people who helped you during your hard work. It really helps you establish some good allies and prevent arguments. Not to mention the warm sensation in an assistants tummy when he sees his name in a thread that exploded.
CHANGELOGS - Please add every single change you make when you update your work. Its really frustrating sometimes, to wait for a big update and then have to go through everything to figure out what it did. Also it helps yourself to stay organized and aware of the changes you make, because let's admit. We all forget.
3 > Follow the rules.
Stealing, swearing, and blaming in an OP will get you banned.
Remember to set up a github where all the changes to your work are made. Its against the rules to not do so. Don't abuse caps, big fonts, colors, styles, etc. It just makes people want to report your thread.
4 > Cosmetics
Use colors and [Bold] to separate the different points of your thread(Headers/Sub-Titles). For example the basic 5 points should be in bold and a different color so that readers can easily make out what they are going to get information on. This thread itself is an example on good cosmetics.
5 > Optional stuff
Regular updates on the working process are greatly appreciated by the users. It shows that you are interested in providing updates and communicating.
Mirrors to your work are really helpful, you might upload them yourself or you may let other people do so, but either way, it ensures that everyone has access to your work at any point of time.
Videos showcasing the work you are presenting. Its always nice to have a visual demonstration of what you are offering, even though it may be a little hard to execute.
6 > Some tips:
Have the headers centered and use bigger fonts on them.
Don't use bright or hard to read colors like cyan, yellow or pink, it irritates the eyes and makes it less appealing to people that are willing to read.
Follow the example you started with. If you decide to make your layout in a specific manner don't go changing it mid-way.
If in doubt, reference other threads for examples.
Get creative, use your imagination, think outside the box. Innovation is good.
Examples of threads that have great layouts, and a basic template.
Great Layouts: Example #1 ; Example #2 ; Example #3
Everything is well organized here and cannot be criticised.
Note: Example #1 is missing the changelogs because the dev just helped us out. Support is up to us.
Good/Mediocre Layouts
Example #1 - The layout itself is very well structured but those little details like the bright yellow and the monotone text size/style.
Example #2 - Not the best way to post a thread. Most times 2 posts are unnecessary. Features list missing. Also i am a little against the excessive urging for people to thank/donate to you.
Bad layouts - Any thread missing the 5 important stepping stones, or not following common sense.
Experiment with your own styles, and use common sense, asking yourself “Jee, will this look good if I did this and that?”
P.S. The examples given were chosen based on my sense of giving examples and are completely randomly chosen.
Proper Forum Manners (by aashay960)Being a member here on XDA, you are expected to behave in a manner that will not cause any inconvenience to your fellow members. People are here because they choose to be here, because they like being here and helping out. They do not owe you in any way. They can choose not to help you if they find your manners disrespectful. You are here because you need their help. Disrespecting any one member or not following rules can leave a negative impression on the other members about you and they might choose to ignore you.
XDA Forum Rules <-- Read this
Here are some points to help you follow proper forum manners/etiquette.
1 > I have a Question, What should I do?
The first thing you should do is use the ‘Search’. Xda has an excellent and organised searching mechanism. You can search within a particular thread, a particular forum or search the entire website at once. It is very likely that you are not the first person to encounter this problem. If searching on XDA does not satisfy you, Search on Google.
From my personal experience I can tell that searching is indeed the best way to solve your problem. More often than not, I find the answer by searching rather than asking on a thread.
If you still cant find the solution, post your query in the Q and A section.
Don't Post vague titles like “HELP!”, “EMERGENCY!” It will not attract more people to your thread to help you. In fact, it irritates people. Xda members will try their best to help you with all kinds of problems - small or big. It would be much more appreciated if you name your thread clearly like [Q][NAME OF PROBLEM][WHAT ROM]. And avoid posting things like “HELP!!” or “pls halp!” in your posts as well. Doing so will not be any help.
2 > I am excited about the release of the next version of this rom. What should I do?
Never ask things like “When will you release the next version?” “How much more time to the next release?” “Please release the next version soon”. This is called asking for ETA and this is not welcomed here. The developers pursue this as a hobby and do so in their free time. They will release the Rom when they feel it is ready to be released. Trust me, they have no gain keeping it to themselves. They WILL share it with you.
Also, do not post things like “Waiting for the ROM” or “Excited about the next release”. They do nothing to help others and just add to the clutter.
One rule to follow before posting anything is to ask yourself - Will this make a difference? If the answer is no, don’t post it.
3 > I am facing a bug with the Rom. What should i do?
Be descriptive about your problem. Try to give as much information as you can about it rather than writing “pls help”. Mention the name of the rom, name of the kernel. Provide screenshots if you think they might help. Also mention what you did ‘before’ you found the bug/problem. It is often the last thing you do that messes up your ROM.
Also, Learn how to take a logcat. There are hundred of guides showing you how to do it. Use the Search box. It’s not Rocket science..
4 > I really like somebody’s work and would like to share it. What do I do?
Make sure you ask permission from the original maker of the guide/rom/kernel/app you want to share. And make sure you mention his username in your thread and thank him for doing his work. It is also recommended to provide a link to the original thread.
5 > I really like somebody’s work. I want to tell him that I appreciate it. What do I do?
This is pretty obvious but, HIT THE THANKS BUTTON. The developers feel really happy when you press the thanks button. It encourages them to keep working hard.
The thanks button is enough to show your gratitude. You don’t need to post things like “thank you” or “i really like your work” or “Great job”. This will increase the clutter in the forums. This is what the thanks button was made for.
Some developers also give you the option to donate money to them. If you would really like to show your appreciation, you can click on the “Donate to Me” button in the signature, or under their profile picture.
6 > Another user is disrespecting me or disobeying the rules. What should i do?
Use the “Report Post” button (the exclamation mark on top of the post). DONT fall down to his level and start disrespecting or abusing him. That could result in both of the users getting banned.
Wanna learn more?
[Lists]Guide Ride-From a Newbie to a Dev, Get all you need here
[READ FIRST] [REF] Dictionary for n00b - What is.../What does ...mean?
This thread will always be a 'Work in Progress'. Please post any suggestions/questions/additions/feedback
I suggest making it sticky.
Great work , much appreciated :good:
Added - What is GAPPS?
Great job on this topic. Just 2 things: Undervolt is most commonly used. Also " therefor " has an e at the end( Therefore ).
Code:
therefor: adv. for that [thing]; for that, for it
Ex. I will give you my pocket knife if you will give me your watch therefor.
therefore: adv.consequently, hence
Ex. I think, therefore I am. I was afraid; therefore I ran.
me4488 said:
Great job on this topic. Just 2 things: Undervolt is most commonly used. Also " therefor " has an e at the end( Therefore ).
Code:
therefor: adv. for that [thing]; for that, for it
Ex. I will give you my pocket knife if you will give me your watch therefor.
therefore: adv.consequently, hence
Ex. I think, therefore I am. I was afraid; therefore I ran.
Click to expand...
Click to collapse
1) If I'm not mistaken, our phone does not have a kernel with undervolt support right?
2) I know the meaning/spelling of therefore. Must be a typing mistake. Haha
aashay960 said:
1) If I'm not mistaken, our phone does not have a kernel with underclock support right?
2) I know the meaning/spelling of therefore. Must be a typing mistake. Haha
Click to expand...
Click to collapse
Thanks for taking that in mind man <3 I'm just a grammar nazi, sorry bout that. And I undervolted it to 75 MHz.
me4488 said:
Thanks for taking that in mind man <3 I'm just a grammar nazi, sorry bout that. And I undervolted it to 75 MHz.
Click to expand...
Click to collapse
I think there is a misunderstanding between us. There s a difference between underclock and undervolt. What you are talking about is underclock. Undervolt has got to do with how much voltage the battery is supplying. We can reduce it to save battery but it causes stability issues.
PS - I'm all for correct grammar too And Congratulations on becoming a senior member! :good:
Added - How to save battery?
aashay960 said:
Added - How to save battery?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=991276( save battery+performance).
aashay960 said:
I think there is a misunderstanding between us. There s a difference between underclock and undervolt. What you are talking about is underclock. Undervolt has got to do with how much voltage the battery is supplying. We can reduce it to save battery but it causes stability issues.
PS - I'm all for correct grammar too And Congratulations on becoming a senior member! :good:
Click to expand...
Click to collapse
I am a senior member? Wow xD Thanks for actually telling me, i dont pay attention to that stuff. If you dont mind, im going to look for some more stuff that you can add here so we can make this more helpfull. For example, you can dedicate a little paragraph for task killers. Here is the link Cons (and no pros)
me4488 said:
I am a senior member? Wow xD Thanks for actually telling me, i dont pay attention to that stuff. If you dont mind, im going to look for some more stuff that you can add here so we can make this more helpfull. For example, you can dedicate a little paragraph for task killers. Here is the link Cons (and no pros)
Click to expand...
Click to collapse
Thanks bro. Any help would be appreciated. My college started today so I'm gonna be super busy. My college is 1 and a half hour away from my home!
But I will still continue to give my time and effort for this forum because i love it and the people here.
Ohh I have already read that article before!. But everyone seems to have a different view about task killers. I myself don't use it. So honestly I don't know what to believe..
aashay960 said:
Ohh I have already read that article before!. But everyone seems to have a different view about task killers. I myself don't use it. So honestly I don't know what to believe..
Click to expand...
Click to collapse
Ive seen recognized developers talk about how bad task killers are. I would rather believe them than the people who download task killers to have more ram which is actually unimportant. Like said in the article, the low memory killer does its job nicely without the need of additional help.
This and This
So my thought is completely against them.
Also keep your studies at 1st priority. :3
me4488 said:
Ive seen recognized developers talk about how bad task killers are. I would rather believe them than the people who download task killers to have more ram which is actually unimportant. Like said in the article, the low memory killer does its job nicely without the need of additional help.
This and This
So my thought is completely against them.
Also keep your studies at 1st priority. :3
Click to expand...
Click to collapse
Looks good. I use watchdog too.. I will add it soon :thumbup:
ADDED - Task managers - Good or Bad?
Added - Clean flash and Dirty flash
Okay, I'm running a newly rooted SGH-I537—Firmware: 4.4.2—Baseband: NE3
I rooted it this morning no problem with @geohot's towelroot; worked wonderfully.
My next steps were to backup everything and start removing bloat. Unfortunately, I wasn't even able to get to the back s**t up step, naturally.
When trying to backup the files to the exSDcard, I am told that it is unwritable! Funny thing about that though? When I say f**k it and try the backup anyway, it works for a fraction of a second, stops, and says insufficient storage....but each time I've done this a file leaks through and backs up to the destination, wtf?
I have been scouring these and other android forums looking for a solution to the problem, to no avail.
There was one potential solution, linked here: http://forum.xda-developers.com/showthread.php?p=44370296
But, naturally, it didn't work. I mean, I copied to the platform.xml file to my computer, did the necessary edits, and when I tried to paste it back into etc/permissions it wouldn't. So I thought, "maybe I have to edit it from it's location", NOPE! That doesn't work either; won't let me save with modifications. Granted, this method was for a different phone, but then again, so was the root method I used.
Which brings up another point: if I'm rooted, and ES File Explorer has superuser access, why can't I edit a simple .xml file?!
I apologize if this post comes off a little irritated, but I f**king am!
Anyone who can help with this will have my sincere gratitude and advanced thanks.......or I'm taking my phone to the shooting range.
*Warning: Irate rant contained below!*
It's like the folks at Android were sitting around the conference room—brainstorming—when someone spoke up and said, "GUYS! I've got a great idea! For this next update, let's not actually improve things, but rather(!), let's make our platform LESS functional! The consumers will love it! And I've got just the thing! You know how you used to be able to write things to the SD card?! Uh uh uh, NOT ANYMORE! Now what we'll do is pick things out of this hat I have here, whatever comes out is the functionality the end user loses!" And everyone just nodded in agreement! *rage*Oh.My.F**king.God! Who are these people and why is their incompetence so unfathomably pervasive?!
It's not just Android, but EVERY major tech company! Windows 8: Great example! Live Messenger/Skype merger: Great example! Apple(I mean, that's why we're all here, right?): Great example!
I could go on, but that's not why I am here, that's why I am in college.
Thanks (in advance) again guys.
I want a rom that includes the following:
1. way to clear all the recent task list with a click, like the pre lollipop stock did.
2. An intermediate option on the volume rocker between vibrate and normal volume with a "meeting mode." where the phone just rings a single beep. Similar to the old nokia phones did.
3. Tethering.
4. Stable and fast and lite.
5. Data defaults to wifi. I have issues getting the wifi webpage to sign in to hot spots unless I turn off cell data.
Anyone have any suggestions
Aosb!
deadave said:
way to clear all the recent task list with a click, like the pre lollipop stock did.
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Click to collapse
If you're doing this just so it looks tidy, in case you're unaware this is a bad idea if you do it regularly. Unless of course you're unhappy with how much battery lasts and want to make it last less.
Looking through a hundred open apps is a lot more of a pain than plugging my phone in to get charged. I appreciate your concern for my battery life.
Most ROMs have #1, the lightest is probably Clean ROM. They all have #3. None have #2. No ROM will do better at #5 than stock.
deadave said:
Looking through a hundred open apps is a lot more of a pain than plugging my phone in to get charged. I appreciate your concern for my battery life.
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Click to collapse
I agree that I think Google made a mistake with recents. It should just reflect cached apps. Hopefully custom ROMs will implement a modified version. But many people don't understand then associated drain caused by always clearing recents so on the off-chance that you didn't, I thought I'd let you know about it.
You never have to go more than a few apps back to find your recently cached apps so you shouldnt ever have to look through a hundred apps. They're just in the background
How do you even know it causes more drain? Have you taken multiple nexus 6 and controlled for all variables such as apps, age of device etc and compared them with statistical analysis for significance?
deadave said:
How do you even know it causes more drain? Have you taken multiple nexus 6 and controlled for all variables such as apps, age of device etc and compared them with statistical analysis for significance?
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Click to collapse
Not sure if its an internet language barrier but your post reads as if you're being confrontational.
Its common sense. Android is designed to cache apps for quick retrieval. If you open an app cold, it uses significantly more CPU cycles to open up than a cached app. More CPU cycles = More power uses = shorter batter life. If you're constantly clearing recents and always starting your regularly used apps up from cold, you will take a battery hit. I don't need to do a statistical analysis for this fact, in the same way I don't need statistics to prove that one day, we'll be dead.
It's an assumption. I can make the same argument right back at you. Pulling up the task list and displaying 20 items and scrolling use plenty cpu cycles.
deadave said:
It's an assumption. I can make the same argument right back at you. Pulling up the task list and displaying 20 items and scrolling use plenty cpu cycles.
Click to expand...
Click to collapse
Actually it is not an assumption. Its a fact. And science! I can't believe you could even think it was an assumption, unless you don't understand CPU cycles, energy use or the principles of caching..
And no, the argument you're presenting does not use extra CPU cycles. I've come to the understanding that you are indeed being intentionally confrontational. I was just trying to help in case you didn't understand this concept - as a warning. To be honest I dont care if you waste CPU. I just wanted to let you know in case you were.
Let's not have this turn into you being an anti-vaccer that doesn't believe in measles.
I'm an inquisitive not confrontational, and you have not proven your point. Though if you actually worked on the android OS team I'd take your word for it. I don't take most people's words for anything. The media is full of lies, the government are all thieves and liars. Trust no one. Many published publications have been redacted and falsified.
However, suppose you are correct.
So how many items do you have on your recently used list? You don't find it the least bit inefficient searching through all the clutter on your recently used list.
-Dead
deadave said:
I'm an inquisitive not confrontational, and you have not proven your point. Though if you actually worked on the android OS team I'd take your word for it. I don't take most people's words for anything. The media is full of lies, the government are all thieves and liars. Trust no one. Many published publications have been redacted and falsified.
However, suppose you are correct.
So how many items do you have on your recently used list? You don't find it the least bit inefficient searching through all the clutter on your recently used list.
-Dead
Click to expand...
Click to collapse
OK if you're simply being inquisitive, then I apologise for that assumption.
Well the beauty of it is you don't need to take my word for it. You can research the subject yourself. Whether you believe me or not though, it is a fact that android caches apps and that cached apps take fewer CPU cycles to open than an uncached app. You can even find some statements from the Greenify developer stating this if you're so inclined.
As for my recent a list, I have 122 items. I only use recents to switch between open and cached apps. I'd say I probably never go more than 10 apps back in that list so anything in there over that amount is irrelevant to me. Yes it is quicker to find an app in my app drawer or from my pie / glovebox shortcuts than way back in my recents list since the recent list is only sorted in order of when I last used it. Recents is only really for quick task switching. I did already agree that anything that isn't cached is pretty pointless appearing on recents and I have no idea why they decided to design it like this but it doesn't bother me much because of the way I use recents. Also, since I would much rather use a cached app than start cold, I'd also rather not clear recents. You don't even need to use the recents interface anyway. Whether you call an app from the recents list or the drawer, if its cached, it will load it quicker and more efficiently. As long as its not cleared from recents..
I found some vague reference that if you clear an app from the recent list it doesn't even close the app process it just goes away from the list depending on the specific app.
In the end I don't really care if it uses more cpu cycles, I just want it not cluttered. I don't need to show my phone to a significant other and have them see every recent app I went to. I favor privacy and less clutter over cpu cycles. It was a mistake on google's part not to leave it up to the user.
I'm also not sure why it's such a pain in the butt to find a way to have a setting to have a single ring without it repeating. I made my own ring tone with a single beep and 30 seconds of silence but it still sucks because I can't easily switch back and forth without installing another app for profiles and such making it a lot more complicated...
deadave said:
I found some vague reference that if you clear an app from the recent list it doesn't even close the app process it just goes away from the list depending on the specific app.
Click to expand...
Click to collapse
If the app is coded against googles guidelines, that could be the case though I've never found one that does that. Its quite an easy test to do too.
Open an app that's in recents then minimise it. Clear from recents again and if it opens fresh, its working as Google intended
Anyway, you don't care and nor do I so o suppose I should let you continue with the initial purpose of the thread
im always closing/clearing my recents. whatever battery drain that it causes me is so very minimal that it really doesnt matter.
simms22 said:
im always closing/clearing my recents. whatever battery drain that it causes me is so very minimal that it really doesnt matter.
Click to expand...
Click to collapse
The more you do it and the more you use the apps you're clearing, the worse it is. More so of you're just blanket clearing them all. Regardless of whether you perceive a difference or not, its a real thing. Efficiency, battery and performance all take a hit and that's what its there for. Oh and convenience of course. Its awful if you're in a thread on tapa talk and then check something really quick then you have to load the app up again and find the thread.
rootSU said:
The more you do it and the more you use the apps you're clearing, the worse it is. More so of you're just blanket clearing them all. Regardless of whether you perceive a difference or not, its a real thing. Efficiency, battery and performance all take a hit and that's what its there for. Oh and convenience of course. Its awful if you're in a thread on tapa talk and then check something really quick then you have to load the app up again and find the thread.
Click to expand...
Click to collapse
i guess my app choices are so that it doesnt bother me then. tapatalk will never live on any devices i own! but really, i dont really see any kind of hit in battery drain what so ever.
simms22 said:
i guess my app choices are so that it doesnt bother me then. tapatalk will never live on any devices i own! but really, i dont really see any kind of hit in battery drain what so ever.
Click to expand...
Click to collapse
I wouldn't use Tapatalk if the forum theme was better. I know you use an older one but on a computer the newer one is better but in a mobile browser it kills too much space.
That said when I installed Firefox, I changed the theme and it didn't change in chromium so maybe the theme is tracked in cookies? If so I'd happily change it on my phone. Though I do like the "participated" tags on the latest theme.
Sorry @deadave for the off topic.
rootSU said:
I wouldn't use Tapatalk if the forum theme was better. I know you use an older one but on a computer the newer one is better but in a mobile browser it kills too much space.
That said when I installed Firefox, I changed the theme and it didn't change in chromium so maybe the theme is tracked in cookies? If so I'd happily change it on my phone. Though I do like the "participated" tags on the latest theme.
Sorry @deadave for the off topic.
Click to expand...
Click to collapse
i like that 2010 theme for its simplicity, that and the no ads when youre a rc(like us), and the simplicity of the aosp browser, and im happy. i guess its just about what you yourself are more used to and familiar with
https://play.google.com/store/apps/details?id=eu.chainfire.recently
As for the recents issue, just use this. You can limit what shows (cached vs lifetime with limits to both) as well as a clear all (and cahinfire advises against for reasons already discussed)
Automatically optimizes SQLite databases on boot, on schedule, every X days.
Just a quick and dirty adaptation of an old SQLite3 optimizer script from init.d days to a Magisk Module using a service.sh script instead, with an internal date offset mechanism to run the script every X days (default: 3 - which is plenty, and specifically to stop silliness).
Update And credit note: finally after a fair bit of digging, i think i located the original author of the original init.d version of the main vacuum code snippet ive repurposed (stolen) for this module. It appears to be from user @mcbyte_it (doesnt seem to be current or active) and from a post here. Although i only saw derivative reworkings of this script, and used only the main sqllite script function, i arrived at a different method of tracking last run date, when his is arguably more mainstream/concise. Im fairly certain this is the originator especially as the post also has a zipalign script that was also suggested to me to do....and which i have been fiddling with for months....
The script will wait until boot is completed AND then until avg CPU usage is under 30%, to minimise the risk of possible corruption.
Disclaimer: As always any use of any 3rd party script/software/advice is at the users discretion. All reasonable efforts have been made to make this as safe as possible, but the responsibility ultimately falls to the user whether to use and run the script.
What it does:It:
Reindexes
Vacuums
Analyzes
all .db files under /data.
It runs a 1st run optimize after install (temp file optimsql_first_run on sdcard is used to enable this, and removed after first run), and then on schedule after that.
By default it logs just script progress to /storage/emulated/0/autosqlite.log, but you can choose to enable more detail in the log if you wish
User Configurable Options:The schedule and loglevel can be changed by an external file on sdcard:
Create a file named autosqlite_options on sdcard (/storage/emulated/0/)
Inside create the follow key=value pairs to suit your preference:
interval=x (where x is the number of days between script runs, for the love of god do not put 1 (this goes out especially to the kind of people who put every app on their Magisk magiskhide/deny list) there is no benefit and you just heighten the possibility of corruption)
loglevel=x (where x is either 1 (detailed logging) or 0 (basic logging - default))
Requirements:This module requires a working SQLite3 binary. If your ROM does not provide one (you can check via typing sqlite3 into a terminal), you can choose to use my SQLite3UniversalBinaries module located here:
https://github.com/stylemessiah/SQLite3UniversalBinaries
Dont forget you need to download a named SQLite3UniversalBinaries.vx.x.zip file from the Releases page under Assets. Do not try installing the source code with Magisk Manager, it will not go as you expect
All the modules action takes place in the service.sh file, its commented reasonably well for those wanting to check how it works
* See... now theres something else to use with my SQLite3 Universal Binaries module other than the GPay SQlite Fix Module <- dont use that anymore, it makes me stabby. It is literally the last resort for getting Google Pay/Wallet to work ,
Please note: the included LICENSE only covers the module components provided by the excellent work of @Zackptg5 's Magisk Module Extended, which is available for here for module creators
https://github.com/Zackptg5/MMT-Extended/
All other work is credited above and no one may fork or re-present this module as their own for the purposes of trying to monetize this module or its content without all parties permission. The module comes specifically without an overall license for this intent.
Download:
Repo: https://github.com/stylemessiah/AutomaticSQLiteDBOptimizer
Release: https://github.com/stylemessiah/AutomaticSQLiteDBOptimizer/releases/latest
Powered by Ponkle
@73sydney Nice! If you're looking for newer sqlite3 binaries, I have a build script you can use to build it or you can just grab the precompiled ones at my repo: https://github.com/Zackptg5/Cross-Compiled-Binaries-Android
Zackptg5 said:
@73sydney Nice! If you're looking for newer sqlite3 binaries, I have a build script you can use to build it or you can just grab the precompiled ones at my repo: https://github.com/Zackptg5/Cross-Compiled-Binaries-Android
Click to expand...
Click to collapse
cheers man, i was trying not to pinch all your toys
i mean i could have done an androidacy and scraped your repo for just the files i needed
plus im lazy
73sydney said:
optimizes SQLite databases
Click to expand...
Click to collapse
Nice
how about no schedule, i want to execute it whenever i want
possible ?
loopypalm said:
Nice
how about no schedule, i want to execute it whenever i want
possible ?
Click to expand...
Click to collapse
I refer the gentleman to the name of the module and title of the thread:
"Automatic SQLite DB Optimizer"
the distinct lack of the word "manual" should be a clue
what are they teaching in school these days?
i made this to be automatic and made special note about the intervals because theres people who would abuse this and run it every day if they could, both designed to avoid misuse/abuse:
interval=x (where x is the number of days between script runs, for the love of god do not put 1 (this goes out especially to the kind of people who put every app on their Magisk magiskhide/deny list) there is no benefit and you just heighten the possibility of corruption)
im not really interested in making a manual version option unless you can convince me where there is a use case benefit, because all i see is potential for misuse/abuse that i specifically made this to avoid....
running it by default it runs every 3 days which is twice a week and probably still overkill, but trying to cover all bases
your other option is to ask me for permission (sadly because of abuse in the past from certain entities trying to monetize my and others work, my contributions are not GPL etc) to fork and alter the code yourself....
73sydney said:
I refer the gentleman to the name of the module and title of the thread:
"Automatic SQLite DB Optimizer"
the distinct lack of the word "manual" should be a clue
what are they teaching in school these days?
i made this to be automatic and made special note about the intervals because theres people who would abuse this and run it every day if they could, both designed to avoid misuse/abuse:
interval=x (where x is the number of days between script runs, for the love of god do not put 1 (this goes out especially to the kind of people who put every app on their Magisk magiskhide/deny list) there is no benefit and you just heighten the possibility of corruption)
im not really interested in making a manual version option unless you can convince me where there is a use case benefit, because all i see is potential for misuse/abuse that i specifically made this to avoid....
running it by default it runs every 3 days which is twice a week and probably still overkill, but trying to cover all bases
your other option is to ask me for permission (sadly because of abuse in the past from certain entities trying to monetize my and others work, my contributions are not GPL etc) to fork and alter the code yourself....
Click to expand...
Click to collapse
i was planing to use it once a week
categorizing me with people who do dumb stuff is an 'insult'
i asked a simple question man, don't jump to level 3 mind game please ...
loopypalm said:
i was planing to use it once a week
categorizing me with people who do dumb stuff is an 'insult'
i asked a simple question man, don't jump to level 3 mind game please ...
Click to expand...
Click to collapse
Im sorry, did you miss the double smileys intended to completely avoid any misunderstanding that i was being jovial. the other tip off that i wasnt burning you was taking the time to write several paragraphs
Can i suggest you just set the options file interval to 6 or 7 and let the module do what its described in the title as doing, it would make no functional difference, other than saving you a trip to terminal?
As i said, give me a valid reason for adding a manual option and ill gladly consider it, choosing a reason that fits completely within the actual parameters of the existing module doesnt really fit that offer...
ill go further to why i specifically didnt put in an option to run it manually (really folks are lucky i didnt block the option to run it every day) because you should understand what the sqlite vacuuming and other processes do:
* They copy the data from the db file to temp file before optimising it and writing it back, at any point in this theres the potential for corruption (sudden power loss, other processes accessing the file etc). Ideally any such corruption would be minimised by journaling but anyone who had used Linux for long enough knows not to count on such things.
* If any db is being written to, then the optimization process will NOT optimize that db...for the above possible corruption reasons. Hence why i not only put in a wait till boot completed function BUT also added a function to block the script from running unless avg cpu load over 5 minutes is less than 30%. all this to try and make things as safe as possible. So im not overly fond of a manual option which bypasses these safeties i specifically put there to hopefully safeguard people as best as possible. I dont want to get messages about how my module hosed someones apps.
Perhaps that better addresses my reasons?
As said, you can also ask me to fork the code, and ill even tell you how to add a manual function, but i personally wont be releasing such a version without a better reason than i want to do it every 7 days, when the script as it stands can do that AND at a far more predictably safe time and way than you manually likely can or will use it....
BTw, how is actually responding, even taking the time to do so and being jovial about it "level 3 mind games?", whatever the hell that even is?
73sydney said:
.
Click to expand...
Click to collapse
i was planing to make a recovery backup of "DATA" after the optimization of DB files ...
if you want better result add a comand to kill the coresponding app, then it would be more stable
or tell the people to use FlushRam or something like that before the proccess start, to make sure the result will be good, or make a 2nd module for advanced users ...
even with the condition you said some system apps stays working in the background and messing with their data can lead to corruption
i don't know you or your previous work and i don't have time to care for that
i just asked a simple question
answer with "NO, my module will not do that"
this will save your time and other people time
loopypalm said:
i was planing to make a recovery backup of "DATA" after the optimization of DB files ...
if you want better result add a comand to kill the coresponding app, then it would be more stable
or tell the people to use FlushRam or something like that before the proccess start, to make sure the result will be good, or make a 2nd module for advanced users ...
even with the condition you said some system apps stays working in the background and messing with their data can lead to corruption
i don't know you or your previous work and i don't have time to care for that
i just asked a simple question
answer with "NO, my module will not do that"
this will save your time and other people time
Click to expand...
Click to collapse
1) whether before or after backup, the files will eventually get optimized - if you want a more manual version use SD Maid or as offfered you can ask me how to alter the code as it sits and make your own version.
2) Im not ever releasing a script that kills anyones apps in the background, i would consider that suboptimal, and basically malware
3) I never said that some "system apps stays working in the background and messing with their data can lead to corruption". What i said was i designed the script to best avoid corruption by running only after boot completed and when avg CPU usage over 5 minutes was less than 30%. The sqlite3 itself generally wont allow access to a file in use. Im just adding what i think is a reasonable level of extra safety by deciding when the optimization routine starts to run, and that it isnt abused/misused by running multiple times in an unreasonable timeframe
4) How does
I refer the gentleman to the name of the module and title of the thread:
"Automatic SQLite DB Optimizer"
the distinct lack of the word "manual" should be a clue
not equal "NO, my module will not do that", only with some attempt at humour and a long explanation (soon followed by a more reasoned explanation) because i didnt want to appear dismissive. Yet it looks like you’d have preferred dismissive??
You seem impossible to please anyway someone tried to do it....
To be honest Im tired of this circular conversation. Everyone else knew from the word automatic in the title how things was going to work. Ive made suggestions of alternatives (SD Maid) and even offered to give you the info to change the script for yourself, and cant do more than that.... please choose one and lets move on, please?