Related
Hey all i created this thread for ADVANCED users (and some newbies lol) so that i can better help users tweak and improve performance on their eris. My inbox was getting crazy so i thought this would be better i will still take pm questions but it would be better if we can all learn here. This isn't really a place to report bugs as it would be better to contact your respective developer or post in that developers thread. I will try my very best to get the best performance out of your eris and hopefully we will have some fun along the way. So hopefully this can help take some of the load off of the developers threads and reduce noob-age.
I ONLY ASK THAT IF USERS WANT TO TWEAK I STRONGLY RECOMMEND THAT YOU EITHER..........
1) PURCHASE ROOT EXPLORER FROM THE MARKET OR THE FREE ESTRONGS FILE EXPLORER APP FROM THE MARKET WHICH ALSO ALLOWS ROOT ACCESS AS WELL.... BUT I THINK ROOT EXPLORER IS BETTER IMHO.
2) HAVE ADB SET UP FOR YOURSELVES AT HOME OR KNOWLEDGEABLE OF ADB. I WILL NOT HELP YOU SET UP ADB OR THE SDK
ALSO I RECOMEND PURCHING THE FULL VERSION OF TITANIUM BACKUP AS IT IS AN INVALUABLE TOOL FOR ROOTED USERS AND MAKES BACKING UP AND TWEAKING MUCH EASIER FOR NEWBIES PLUS IT HAS SOME REALLY AWSOME FEATURES
so hopefully this will give us fun things to do in between releases from our devs. And always remember to donate to these awesome awesome eris devs for their hard work and commitment to us.
i want to keep an open discussion thread, nothing is off the table.
kernels
kitchens
cooking
roms
tweaks
hacks
apps
fixes
workarounds
you name it lets talk
lets figure it out together while learning along the way
Things are always changing so if you see any errors or things that need to be updated please let me know and i will be more than happy to get the correct information posted.
Moving apks and deleting dulicates...make your system efficient
YOU need either rootexplorer OR be ADB inclined to do the following....
i was thinking while doing some root exploring of ways to make this rom more solid and here are a few tips i thought everyone could use.
IF YOU DONT HAVE DUPLICATES DONT KILL YOURSELF SEARCHING JUST CONSIDER YOURSELF LUCKY. AND YOU DONT NEED THIS POST
FIRST
when i flash a Rom i always do my set up. here is an overview of what i do when i flash........
-i flash the Rom
-then i login to google as normal so i can receive Titanium Backup (TB) and Root Explorer (RE) from the market updates
if someone could be kind enough to give us a sample command to use terminal to install apps from the sd would be a great shortcut for us
-move those two apps from data/app to system/app
-then i do a full wipe (huh a full wipe you say....system files are never wiped....they can only be flashed over, so TB and RE will still be there)
-clean nand (so if you get crazy and screw up you can easily start over)
-Rom surgery
-Restore
-login to google last and sync
-batt tweaks and extras
this process IMHO makes your rom way more efficient than flashing, login and syncing.
OK
first thing i do when i flash a rom is to remove junk
i navigate with either explorer to system/app folder
then i remove all the useless apps i dont use, need or want
AND/OR remove the "ONE USE" apps (like setupwizard.apk only need it once or none at all if your a pro )
this reduces the ROMs footprint making it smaller
the smaller the Rom the better the faster
here are some things i like to rip out of system/app folder....
ADWLauncher.apk (make sure you have another launcher first i use lanucher pro)
Mail.apk (i use gmail)
Twitter.apk (i currently dont tweet)
ProTips.apk
HtcCalibrate.apk (after i calibrate of course)
Launcher2.apk(why have a bunch of other launchers you dont use hogging memory get rid of them)
MagicSmokeWallpapers.apk (this dont work for me but other do)
Carhomegoogle.apk ONLY
etc. there are others you can remove as well depending on you
and we will experiment to find more......
NEXT
i like to move IMPORTANT apks or apps from the data/app folder to the system/app folder epically if your Rom dev has not updated the gapps lately or you cant get access to the latest gapps.zip.
if you do not then you will end up with a lot of duplicate apps installed in your system when ever you receive a gapps update and that wastes memory and will cause memory issues in the future and it screws with autokiller
i like to move my favorite launcher (launcher pro paid) to the same place where launchers go, in the system/app folder (why have your launcher where regular apps go and get killed by autokiller) i think this is better for the system and doesn't hog your app data space plus it adds stability to your launcher.
here are some things i like to move into system/app.....
i like move into system/app are
launchers (stabilze launcher)
keyboards (should speed up keyboard strokes)
root tools and IMPORTANT apps (R.E. T.B.)
security apps (never deleted or wiped in case of theft, hoping thief is not nerdy)
any of the latest gapps update
and some others
this way if any issue occurs wipe and restore is easy as pie
IMPORTANT: APPS IN THE SYSTEM FOLDERS DO NOT GET WIPED OR DELETED DURING A FACTORY DATA WIPE OR DALVIK WIPE.....THEY CAN ONLY BE FLASHED OVER BY A ROM(OVERWRITTEN)
APPS IN THE DATA FOLDERS WILL GET DELETED DURING A FACTORY WIPE......BUT NOT DALVIK
i know we are ALL have at least one pair of identical (double apks in the system)
-but the identical apks have different names
-on is in data/app the other is in system/app
if you have updated ANY google app then chances are that you may have some double apps on your system wasting. when we update these google apks 'think' the rom comes with the apk already and is stored in the protected system/app folder WHILE the actual update is stored in the data/app folder (or where regular apps go) under a different name
EXAMPLE
google maps
-MAPS.apk ........is stored system/app
-com.google.android.app.map-1.apk........is stored in the data/app (this is the latest update of google maps and should replace the older MAPS.apk in system/app)
-these are the SAME APKs
hmmm so think gmaps is 5-6 megs in size and you have 2 of them so thats like 10-12 megs in your system, get rid of the old one.
there are two thing you can do here with two different benefits
-you can either remove the copy from either the data OR system folders depending on what you prefer.
if you remove the old app from system/app that means easier updates with now file moving BUT less app storage
OR move from data/app to system/app which means less FCs, more other app memory, and dealing with future updates and moving each app.
i like to move the new apks to the system/app where they belong
unstable Launcher PRO
my launcher was very unstable for a while wasn't a big deal for me
soo i decided to move my launcher to the system/app folder like all the other launchers....
I think the instability of that launcher was because of AUTOKILLER thinking this is just a regular app in data/app which it was at the moment. i may be wrong but autokiller doesnt kill system apps. so i move my launcher there and guess what now my launcher is much better and faster and stable beacuse you now have lots more memory.
SPEED TIP: in spare parts speed up your transition and animation windows to FAST
MOVING APPS ADVANCED SHORTCUT
i finally figure out a great short cut for moving apps
-first rename and put your favorite file manager (ROOT EXPLO) onto the sd.
to be even faster rename and put your launcher and TB on there too.
-after flashing a rom bypass the setup (touch the android screen) to home screen.
-open terminal
-type
SU
cd sdcard
busybox install yourapp.apk /data/app
-now you have the file explorer ready to go
instead of trying to restore wipe restore.
and hopefully you know what to do next.
so to summarize...
-get rid of junk you dont use and free up that memory
-move apps to the proper locations in system/app AND/OR data/app
-make sure you dont have multiple google apps using different names
"MAPS.apk" and "com.google.android.app.map-1.apk" IS THE SAME APP IN DIFFERENT LOCATIONS. remove the old and put the new in system/app
make sure your main launcher is in system app so it doesn't keep getting killed by auto killer settings and reloading
Replace THESE apps = with THESE apps
system/app = data/app
Gmail.apk = com.google.android.apps.gm-1.apk
ChrometoPhone.apk = com.google.android.apps.chrometophone-1.apk
Maps.apk = com.google.android.apps.maps-1.apk
CarHomeGoogle.apk = com.google.android.carhome-1.apk
GoogleSearch.apk = com.google.android.googlequicksearchbox-1.apk
Googles.apk = com.google.android.appsunveil-1.apk
SuperUser.apk = com.noshufou.android.su-1.apk
AutoKiller = com.rs.autokiller-2.apk
TitaniumBackup = com.keramidas.TitaniumBackup-2.apk
Twittter = (forget)
Voice= com.google.android.apps.gv-1.apk i think
YouTube=
delete OLD in system/app = move NEW from data/app to system/app
YES i did all those with success more memory and speed and a massive increase in overall Rom stability
there may be more
BUT ALL THESE HAVE DUPLICATE APPS USING DIFFERENT NAMES stored in data/app and/or system/app WHEN the latest update should be system/app IMHO to prevent AUTOKILLER from always killing i believe autokiller will try to kill data apps first before system apps.
i still have my auto killer set at optimum and things work even better now
and i gained 25mb of system memory no more Force closes
Batt tweak custom set up process (a 1-2 day process to complete)
How to increase battery life
first off battery life depends on many factors.....
where you live, work, and the daily place you travel to.
im one of the lucky ones who has a cell tower down the street from me here in S. FL.
WARNING: IF you multitask alllllll day on your phone then this is not for you.This is more beneficial when your phone is at rest or in an idle state or screen off state.
Others may not be so lucky and may live in a bad signal area....which causes your phone to constantly search and listen for signals.
Also battery life could depend on the widgets you use or apps that you have active.
Example: Beautiful Widgets beautiful home is a constantly running app that also
-on occasion activates the GPS to acquire location
-on occasion downloads update weather data
Example: Facebook Widget
-by default update statuses every 15 minutes, so every 15 minutes its downloading data
so i usually adjust these settings to my personal liking
Now for the battery calibration process and how it works
Decad3nce port of Colins_ph batt tweak allows us to use some setcpu profiles without setcpu.
Setcpu and its widgets were resource monsters crippling our system and drain battery life as well. kiss setcpu goodbye we wont be needing it anymore.
the batt tweak calibration process takes some patience as the entire process could take 1-3 days to complete depending. Also i highly recommend using the latest CFS kernel by Conap as it provides extra battery savings
we will be running colins batt tweak during the calibration process so that both calibrate together, which makes a lot of sense as opposed to doning them separately.
here is the process and DS's custom settings for batt tweak 1 (the first release)
please remember to prepare yourself not to interrupt the process. the draining process may die while you are at work or during an emergency. so be prepared to have little use of your phone.
-flash latest CFS kernel found here
-flash batt tweak attached at the bottom of this post until its updated and fixed....more info in thread here
-turn off phone and let charge for a few hours or more to ensure that it is full
-when ready boot into recovery mode and wipe the batt stats and power off
-unplug phone and power on (charging cable not needed) you may experience weird battery levels or fast draining (this is normal)
-immediately open TERMINAL and activate colins_ batt tweak
with command batt-cfg and go to option 3 and input these settings........
I think this works much better
this schedueler keeps the cpu much lower
here if anyone want to try it out
underclock
ondemand
anticipatory
19200
710400
19200
710400
19200
710400 (ONLY IF YOU KNOW YOU CAN 768000)
90
15
15
15
- close terminal and operate phone normally if you want...i highly suggest leaving it alone as much as possible until it drains completely dead.
-use a cpu monitoring app just to make sure the cpu is idle i have seen mine dip down 80mhz if not then you need to kill active open apps
-let phone naturally drain completely until its dead (could take a full day or two mine was 48hrs with some usage)
-when dead make sure by pressing power rapidly a few times
-while off let phone recharge for as long as possible maybe four hours or more the mor the better
-when ready unplug phone and turn on
-when powered on reactivate batt tweak using terminal batt-cfg, then option 9 to save and your done (once setup all you need is option 9 to save and reactivate)
-wtf DS my phone is on but reads less than 100% battery. this is normal replug while on and let charge to full
- when full the process is now complete and you can use phone as normal
REMEMBER THAT SOME ROMS DO NOT ACTIVATE THE TWEAK AND YOU WILL NEED TO DO SO UNTIL YOUR DEV AS ADD THE SCRIPT TO ACTIVATE ON A REBOOT. SO UNTIL THEN OPTION 9 IN BATT TWEAK WILL DO THIS
use an app like system panel or seepu to look at cpu speeds make sure the cpu isnt running at 100%.
try to close apps if you see this but a reboot usually fixes this.
these settings allow for the cpu to use lower clock speeds when idle. much lower than the stock 245000 settings yes were going to the minimum 19200 with little to no side effects or slow downs, but the benefits are more when in a idle state. But it WILL drain at about same rate when your using it heavily.
make sure the tweak is running by either opening terminal and enter pidof batt.sh you should see the processing id number if its running.
OR for a full read out of stats do batt-diag
and observe the time in state read out at the bottom. if you see values next to the 19200 clock speeds........SUCCESS!
PS if you screen on time is 3 hours and your phone is dead, DONT BLAME THE BATT TWEAK....BLAME YOURSELF !
ENJOY
alright now lets get some real stuff in here....lol
jdog94 said:
alright now lets get some real stuff in here....lol
Click to expand...
Click to collapse
just trying to a make a nice neat place to put all my post on past tweaks for users and to do some advanced stuff in the future stay tuned
DS36 said:
just trying to a make a nice neat place to put all my post on past tweaks for users and to do some advanced stuff in the future stay tuned
Click to expand...
Click to collapse
good, i need this!
Great idea"!"!!
HAI! Hau do i route mai fone? I wantz haxorz warez an wireles heatherin fo free intanetz!
So seriously, is this a fan-club for DS? I'm totally in if it is.
sticktodrum said:
HAI! Hau do i route mai fone? I wantz haxorz warez an wireles heatherin fo free intanetz!
So seriously, is this a fan-club for DS? I'm totally in if it is.
Click to expand...
Click to collapse
LMAO can you please please be my threads personal comedian
Keep this thread development related or Ill move it to General, Is this a support thread or something? Something about tweaks?
Its all about me
Captainkrtek said:
Keep this thread development related or Ill move it to General, Is this a support thread or something? Something about tweaks?
Click to expand...
Click to collapse
this is a thread to help old and new users tweak and mod their phones and other advanced stuff
trying to put all the knowledgeable stuff in to one easy thread and it will be dev related
im just started this thread im not done i have lots to do here
my in box is getting a little crazy
this should benefit all and provides basic dev techniques and instruction
this is the beginning stages
plus should reduce the number of faqs for everyone
less fights
less arguments
and less captainrtek (but thats not a bad thing)
DS36 said:
this is a thread to help old and new users tweak and mod their phones and other advanced stuff
trying to put all the knowledgeable stuff in to one easy thread and it will be dev related
im just started this thread im not done i have lots to do here
my in box is getting a little crazy
this should benefit all and provides basic dev techniques and instruction
this is the beginning stages
plus should reduce the number of faqs for everyone
less fights
less arguments
and less captainrtek (but thats not a bad thing)
Click to expand...
Click to collapse
Haha gotcha, and thanks
Thanks in advance, DS.
roirraW "edor" ehT said:
Thanks in advance, DS.
Click to expand...
Click to collapse
Looking forward to working together with everyone learning along the way.
Will be post new batt tweak setting in the morn keep an eye out
Do not up date to the latest version of batt tweak it doesn't work.
Sent from my FroyoEris using XDA App
Brilliant.
sticktodrum said:
HAI! Hau do i route mai fone? I wantz haxorz warez an wireles heatherin fo free intanetz!
So seriously, is this a fan-club for DS? I'm totally in if it is.
Click to expand...
Click to collapse
Lol I haz cheez burger
Sent from my FroyoEris using XDA App
rick311 said:
good, i need this!
Click to expand...
Click to collapse
hey man are you ready
im going to post in the third POST what i have written down so far
but its NOT complete yet....so take a gander
DS36 said:
hey man are you ready
im going to post in the third POST what i have written down so far
but its NOT complete yet....so take a gander
Click to expand...
Click to collapse
ok, i did all the setting tweaks that you recommend. do i have to input them every time i reboot? i dont see a setting that restores my previous settings.
Hey DS,
Great idea to help newbs like me! So after reading your first two posts I looked where my apps are, and every one of them seems to be in system/app... I checked in data/ and can't see anything in there (unless it's sdcard/data, in which case I have folders for Beautiful Widgets and Titanium). I'm using the EStrongs FE, although I don't think that would make a difference. Also, couldn't find any of the duplicate apps you were talking about either (I only have com.google.android.apps.maps.apk, for example). I'm on xtrROM 4.6 and used Titanium Backup to restore my apps.
Is it okay to ask development questions here? I asked one a little while ago, and it got moved over to the General section, which doesn't make sense to me. Anyway, I'm sure the mod will move this one too if it's inappropriate to ask development questions in the development forum (puzzling, if true).
Regardless, on to the question:
I've been developing hardware and software for 25 years, much of it on UNIX and Windows. Know .NET, and other frameworks (X, in terms of UNIX) well. I'm brand-new to Android, though, and haven't taken the plunge yet to get a dev environment set up, and start learning the app frameworks. So, I'm working on some things via creating some rather sophisticated shell scripts.
I've run into two seeming bugs: Looping scripts, using sleep to go dormant, then wake up and do something, don't transition through a device suspend/wakeup cycle.
Intermittently, the OS will come back up with the sleep command stuck, pinning the CPU. This sometimes happens with the hosting shell, ash, as well.
In reality, both these processes are just invocations of busybox. So it's really busybox that's having the problem.
If I can work around this, I will have a very nice, clean, near zero-load ALSA solution for the pathetic default sound chip settings, adding substantial boost (configurable), balance control, and (future) control over output device (earphones, speaker, BT, earpiece)... and much more going forward.
I plan to reimplement all this with native code in a nice GUI app, but for now I'm doing proof of concept with shell scripting, and have hacked up a pretty cool real-time interactive configuration interface using curses-like ANSI terminal controls in ConnectBot (should work with any terminal app on the Epic as long as it supports ANSI standard cursor controls).
So, anyone have any insight/advice/help on this issue with busybox in it's "sleep" and "ash" command personas? One idea I had was to create a cron job to run every 5 minutes or so to check via top and see if either of these processes is running and chewing up the CPU, and if so, kill them off. I notice, though, that crond isn't running, so I'm concerned about what effect it will have if I start it up... Will it wake the phone up every minute to do it's job, thereby killing the battery? (that's how cron works, see the manpage).
Another solution would be to just put the native sleep and shell binaries on my phone, and call them. Sleep will be tiny, so no big deal there. But what about sh/ash/ksh/bash? In theory, should be comparable to busybox (in fact, I'd supect smaller), and as a side-benefit, could get the full scripting functionality of one of these shells (busybox has a few limitations).
Best of all, if there was a "I'm going to suspend" signal I could just trap in the script then I could deal with this in the most logical, direct way. Nirvana would be that signal, and a corresponding trappable "I just woke up" signal.
I'd really appreciate knowlegable dev's comments on these ideas, and any other suggestions/advice for how to deal with this.
Please post questions in General section.
We really need a trollface smiley.
Many people like a 200dpi UI for android.
Some NAND builds even have 200dpi by default.
The only problem with it is that some apps and games are sqauled totally wrong with 200dpi.
They are build for an screen with 240dpi. Thats why im back on 240dpi but i dont really want to.
So how to solve that?
Thought something out and maybe its possible or maybe not but wanna ask you guys.
What if we can make a program that will put the screen back to 240dpi when you start an app or game, automaticly.
In the program you can select what apps/games need it and when you start it up the program changes from 200dpi to 240dpi.
Now i learned that you must restart your device to let the change work.
So what if the program also remembers your PIN-Code and enters it automaticly and start up the app/game.
And when you close the app/game the program changes back to 200dpi.
Something like that. Is it even possible to make a program like this or something?
I searched the forums but couldnt found a real good solution for this problem so maybe this is a solution if someone makes this program
This is actually a pretty good idea, I love a lower density and it's a shame some apps don't scale well.
Unfortunately, for obvious security reasons no app has access to your SIM input. Can't read it, can't input it. I think it should be possible to make the lcd density change go in effect without a real reboot though, just no clue how...
Well exactly, maybe a reboot isnt needed but they dont know how yet . Gope some devs will see this
sent from my HD2 Android
this question is actually about a small network of things: what the default android framework permits, how users use it and what engines can do.
after getting into android programming, it soon seemed to me that the android framework would require me to manage a lot of things i simply don't want to put up with for a simple game (e.g. i don't care about managing intents, creating xml-layouts and stuff like that... slap a couple of images on the screen and i'm fine - well... basically), i started looking for game engines.
after almost a month of research and tests (with default framework, andengine and libgdx), i finally whipped up a little prototype of the game i want to program using libgdx in just two days.
but then i noticed something...
the following issue might make the last third of this post irrevelant:
this game runs at 70% cpu usage on my desktop. even though i would only need to render on user input (it's a puzzle game). so i'm guessing it would use 20 times (or whatever) the battery of the phone it actually should.
since it seems to me "render on demand" isn't possible with libgdx, i figured i'd take another stab working with the default android framework and hope that this doesn't redraw like crazy even though it's not needed.
if such a thing is simply impossible, please tell me and i'll just keep on working with libgdx.
now, the most compact open source game example to learn from that i found is this:
http://code.google.com/p/asqare/source/browse/#svn/trunk/a2
after i tried it out and studied the code, i was stunned by how much stuff is being handled for this very, very simple game (pretty much as simple as mine). so i counted the lines of code... ~4200! while my libgdx prototype has roughly 800. sure, it doesn't have a preferences menu, no about screen and doesn't handle what happens on things like pause/resume but even with those things i highly doubt i'd get anywhere near that amount of code.
so:
IF it is indeed possible to produce a full-screen android app that draws images only on demand, is it possible to do that in a less convoluted fashion than in that 4200 line example?
i'm hopeful that this guy has simply overdone it and i've just been looking in the wrong places for slim examples.
Fyi I did not read 100% of your post, but I think I can help you out.
Imo do not waste your time with game engines. If you are serious about game dev then learn opengl. Its worth it.
With the glsurfaceview you can ether render on demand or as fast as possible. Also as with all opengl u have full control over what is rendered. If need be I can provide an example but it will have to wait a few days.
Sent from my MB860 using Tapatalk
actually, i've learned opengl in the past (but forgotten a lot already - didn't use those skills much) but a) i'll only do 2d games anyway and b) opengl isn't really the problem. getting to where i can actually render things is. and engines allow you to focus on gameplay/rendering without dealing too much with the whole setup and management of things.
i don't feel like libgdx takes control away from me, since i can still use all the opengl-commands i want. and i will definitely look up glsurfaceview and see how it fits into what i currently have. thanks!!
btw - i'm not really "serious". i'm a fulltime artist who happened to have learned about eight years of programming in the past and just wants to try to make a little extra on the side. and create some games i'd like to see but simply aren't out there yet.
and i don't want to spend more time programming all the management nonsense around it than the gameplay itself and working on the design.
I wouldn't rely on the cpu usage on the desktop. The emulator isn't efficient at all...
libgdx is a multiplatform engine, so that cpu usage is based on the desktop-version.
but it does use continuous rendering and can't be switched to on demand. tried to extend the classes of the engine and adapt them so that it renders in on demand for the last three hours without success...
but i've found a neat blog post on the android developers website called "The Simplest GLSurfaceView Application" and hope that i'll be able to find my way from there. after all, i now already at least have a nice full screen canvas with just 54 lines of code... that's something i did not expect i would ever see happening.
Hi,
recently i came upon a thread with someone asking :
how to optimize the archos to be quicker ?
As this is propably a question many people might ask (even I still do ) I thought about creating a thread about. This is not just to answer his question but also for all u nerds out there to corrent me - as I might be wrong in some points AND to gather new options to speed up the device. This is what i have learned yet...
Anyway all of the things I list here require root as far as I know. So get your device rooted or abandon the Thread
ALL THINGS IN THIS THREAD ARE WITHOUT WARRENTY - SO IF YOUR DEVICE STARTS MUTATING INTO A DOG HUNTING YOUR ASS FOR NEW FLESH - BE WARNED
Memory Management:
Introduction: HAVING FREE UNUSED MEMORY ON ANDROID HAS (nearly) NO ADVANTAGE (exception having 0 memory also fu**s up the device -> 1. )
All of those methods wont make your device faster in the meaning of really getting faster in speed... as android already has a quite good memory management.
BUT if u get more space in memory your device can keep more of the apps U LIKE in memory (being inactive according to app lifecycle). This will make them get called faster next time u use them and your device will "feel" faster and more responsive.
1. What should work on all roms are the "minfree" settings -> meaning when android really kills apps - depending on free memory (if u don't know what is mean by - search for the "App Lifecycle" of android)
You can try setting those to the values mentioned by sibere (scroll down) or try finding your own settings. There for u can use any app like "AutoKiller Memory Optimizer" just serach "memory optimizer" in the market.
KEEP IN MIND - you may play a bit with those settings - BUT still u should know what u are doing if u use it!
LOW: If u set the values to low the device will kill apps very late keeping much of them in memory this might make you device get slow. If there is too less Memor fo a "new" app or another process just need more memory while running it has to close down other processes before memory can be allocated.
HIGH: If u set em too high u kill most apps instantly - and your device will get problems and might get unstable as far as i understood.
2. Try gettign more "free" memory by disabeling services - as those got the highest priority they wont get killed that fast by the memory management. For checking u might get an app like "TaskManager" wich lists all running processes.
Just check out what takes your memory and disable those u dont need.U can disaable them by using "Titanium Backup" disable app / uninstall em / or just uncheck their autorun by using a programm like "Autorun Manager". Remember if u just disable the autorun they might (re)start later still.
3. Use a low sceen count in your launcher and keep the widget count low. This is related to 2.) as most widgets run a "background service" to update itself / pulling information (e.g. a waether widget getting latest conditions, a calendar widget keeping connection to your calendar app,...) - each widget took at least 8MB memory when i checked with TaskManager - "greater" widgets like "Fancy Widget (sense like clock and weather widget)" sometimes take up to 25MB
4. DONT USE A LIVE WALLPAPER (live wallpapers use MUCH memory most 20MB-40MB - either they get closed down all the time - or they just reside in memory taking the memory u wanted to use for keeping other apps active)
I also noticed that the App Drawer got "much/noticeable" slower in every Laucher I tested while a live wallpaper was active
5. DO NOT USE A TASK KILLER (remeber the introduction!!! - and think about it yourself - if at least 20 ppl ask why - i write this down here )
6. SWAP / COMPCACHE (can be activated through UD config) - this is a really hard question - those methods extend your memory but the memory u gain is MUCH slower then the internal memory. So again u have to decide and try out if it helps u or it doesn't (I used em long time but never realy felt a big advantage of. Compcache even made my device feel slower and i got more FC's most time - also I tried to figure out how the memory management uses this "memory". But i din't find a clear answer yet - as some ppl mentioned that "inactve apps" wont get swapped - need some clear source... Anway in general those 2 should increase Multitasking capability at cost of speed.
7. FUDGESWAP
- noting yet - its GINGERBREAD only - so we have to wait...
FINALY: u have to decide on your own what u really NEED to run "simultaniously" (I personaly rather have less widgets and run background services like growl, eventghost, tasker) but u can count it yourself by checking back with taskmanager and having in mind your archos (GEN8) just has 256MB of internal memory.
CPU Manaagement:
8. (UD) If u got Urukdroid u can try setting your CPU Governor to another value like:
"Interactive" is more reactive than "on demand" (-> SIBERE)
9. Try an OC (OverClocked) Kernel -> get it in the Urukdroid Dev Thread (I wont link any here as u should know what u do and wich u choose!)
BEWARE not all devices can use an OC Kernel (sadly mine can't) but try it out...
10. Try overclocking your device with the Milestone Overclock Utility. This overclock method is based on a module insert. Again this just works with root.
OVERCLOCKING:
Each CPU is different -> each device is different and can handle different maximum speeds - this is related to the former position of the CPU on its waver while production...
So u have to try out what your CPU can handle safely - so it might happen your device will refuse to boot after u flashed a kernel or set some permanen OC values. Keep a BACKUP or reflash old kernel...
In general u normaly can't brick your device by overclocking as the CPU overheats -> safety function of the CPU stops it -> the device resets itself before the CPU get "burned" (hope this also aplies to ARM processors )
Other:
11. The Launcher: I tested out much lauchers already: ADW, ADW EX, VTL, Laucher PRO, Zeam Laucher, GO Laucher - most of them seem to be eaqual in speed and more differ in features (event Laucher PRO is still the fastest on my Wildfire [but development stopped some time ago], GO seemed to be a bit slower imho) - take any of those but avoid taking some over exagerated 3D'ish laucher like Regina, SPB Shell, Claystone...
12. Apps like "AutoKiller Memory Optimizer" have additionaly features to "optimise" the speed,... u might test those out but I didnt notice a difference most time. Still keep in mind - u should know what u are doing
13. Ok - u may want to hit me for that:
It's more a cosmetic thing - but I recently used UOT Kitchen for theming my framework and used the fly-in animations - and they feel much faster then the default animations just try it out... keep a backup of your original framework for reverting.
All the following Tweaks are mentioned by sibere (credits go to him and propably some other people)
echo "1536,2048,4096,6144,8192,10240" > /sys/module/lowmemorykiller/parameters/minfree
(this is related to 1. ; 1MB = 256 => valueas above are 6MB, 8MB, 16MB, 24MB, 32MB, 40MB)
to enable cgroups cpuacct:
mkdir /acct
mount -t cgroups -o cpuacct none /acct
mkdir /acct/uid
to change ioscheduler:
cd /sys/block/mmcblk1/queue
echo "deadline" > scheduler
cd iosched
echo 1 > fifo_batch
These are lost on reboot so if you wanna keep them, add a script to /etc/init.d
Finaly I also have patched the sqlite library. If you want the file, let me know. It boost a lot SQL database writings. See this thread http://forum.xda-developers.com/showthread.php?t=903507
Click to expand...
Click to collapse
Will ask him to comment on "cgroups, ioscheduler, and sqlite" as im not sure if they work with all rom versions / neither how they work exactly.
THANKS Sibere
EDIT:
aditional threads with tweaks
- Supercharger
- http://forum.xda-developers.com/showthread.php?t=1227269
BEWARE I HAVEN'T HAD THE TIME TO CHECK THEM OUT YET AND DIDN'T TEST THEM
SOME OF THEM MIGHT NOT WORK AND PEOPLEARGUE ABOUT THEM (e.g. the "debug.sf.hw =1" is heavily discussed)
IF ANYONE KNOWS MORE ABOUT THOSE OR CAN HELP TESTING IM HAPPY TO LEARN MORE ABOUT
Hi.
For a full reference to cgroups, you may read the cgroups documentation from the kernel.
Basically, it provides process aggregations in the Linux kernel, mainly for resource tracking purposes.
deadline IO scheduler has been used a lot for SSDs and proven to be quite adapted to flash memory.
The minfree settings set here are pretty much optimised by me for the archos. It gives you a good balance between available cache and free ram . Android starts to complain when the free ram drops below 32Mb. with these settings, the OOM task killer will try to maintain a free ram level above 32Mb. You DON'T need a task killer. It will just use precious ram resources and will mess up with the android integrated task killer.
Those settings are reset on boot, so you may add them in a script added to /etc/init.d/ directory.
SQlite optimisation is of great help and I already posted a lot of information about it when I posted the tweaked file. Please refer to this post. (You'll have to look for it, it's somewhere in the dev thread )
Enjoy your optimised archos!
Thanks guys, learning new tips.
Nice! Good tips. Thanks.
Very usefull reading, thanks!
thanks for the tips ! cheers!
Hello, I am JustLoveJoy, I am an up and coming developer, although I work very hard on my phone right now, my gf has gotten an Archos 8 G2 4GB tablet and I have it rooted but it constantly gives me some issues. Finding this thread, I have to ask, can these or any tweaks be applied to her tablet? is there any source code on github or somewhere else? I mainly wish to get her to be able to do her Farmville on it. I'd like to get on to the development boards with a custom rom for it but I need someone with a little experience to point me in the right direction for that. Thanks So much for starting this thread!
hi i just want to try to root my arnova 7g2 bit i don't find a straight 3d on xda. you clan indicate the right street
Inviato dal mio GT-N7000 con Tapatalk 2
did you notice that crow (CM7) for Gen8 was released ?
still nothing for developing for the Archos 8 G2 4GB? If I can get adb shell I would be happy!
Thanks
thinks man
:good:
Thanks for the great post! I still have one of these!