JIT. What does it do? - Galaxy Ace S5830 General

Which is faster, JIT on or JIT off?
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For me, doesn't seem to make my phone faster or slower, so I just leave it off. But you should try it see how it works for your phone.

In CM7 it's on by default, lol
Gotta do some google searches
EDIT:
http://en.m.wikipedia.org/wiki/Just-in-time_compilation
Basically it caches the code to make the apps run faster, with some tradeoff, which is increased startup time.
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Related

Phone lags a lot sometimes.

Why does the phone lag to the point of barely working?
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Well, for starters tell us what your running.
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Must be on stock 2.1.....
I haven't had lag at all in a very long time. Do yourself a favour and try one of the froyo roms...
I also will lag a lot sometimes, a lot that even the launcher will restart whenever i go back to home from an application. So I check the free memory it's less than 30mb even though I used autokiller memory optimizer setting (60,70,80). Thus I check the apps run, nothing wrong with it. I reboot and run those apps again, and I still left ~90mb ram and it back to normal (fast).
P.S I am using 2.2
Weird, I seriously cannot think of the last time I had any lag at all....
The only time I get any is when the phone first boots up for like a couple seconds before the sd card reads, then it is fast as hell.
What rom are you using? Could it maybe be an app you have?
I'm on the stock 2.1 with Rogers.
even killing all tasks doesn't help when it's lagging bad.
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Jamolah said:
I'm on the stock 2.1 with Rogers.
even killing all tasks doesn't help when it's lagging bad.
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Click to expand...
Click to collapse
Oh god, stock 2.1 sucks. Do you at least have jit enabled?
try to change to 2.2.1 ROM, I use CM 6.1.3 and it's awesome!!!
it will lag when the gallery tries to cache all the photos in your memory card. You can't do anything about it(well i don't know what can you do to remove the lag).
fiscidtox said:
Oh god, stock 2.1 sucks. Do you at least have jit enabled?
Click to expand...
Click to collapse
No I don't have JIT enabled.
It's not even when I'm loading any photos. Even if I'm in handcent_SMS the thing slows down to a halt. Very annoying.
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[Q] What's up with the RAM?

For some reason, the RAM on my galaxy ace is always running at about 80 something even when I have auto memory manager set to aggressive, clean up ram after every minute and set the presets really high. After it clears up, some apps get automatically preloaded again.
Is there a way to control how much ram can stay consistent on the phone? It lags when the ram is running pretty low so I was wondering if there's a way to keep up a whole bunch of free ram.
I'm running my Ace on 2.3.5 stock rom rooted.
Try allinone script frm development section. It free's a hell lot of memory. It needs cf-root or cm7 to work.
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Dont jus say thanks, use d 'Thanks' button. [XDA-RULE]
If you don't like scripts try the Ram manager app by Juwes11, it helps maintain some free ram.
some apps cannot be killed/are persistent so don't bother killing those.
Thanks guys! Will try them out
autostarts is a great app to prevent useless apps from restarting/starting in a certain situation. (e.g. when you start your phone/wifi etc.)
Used it for a few months and im very happy with it.
Wont it close the app when I start it up manually though? Have you had any errors with it?
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when i bought SGA then i noticed first thing ram usage was high as there were most of bloatwares from samsung which were starting on there on...
rooted it on that day and removed them
now on CF-ROOT using allram script
Ooo what does that script do and how do I get it?
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SuperAce609 said:
Ooo what does that script do and how do I get it?
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Click to expand...
Click to collapse
Hey! have you tried an small text box within this forum used to do some research!?
Anyways... Try HERE
Nah, didn't think about it. Lmao thanks though
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SuperAce609 said:
Ooo what does that script do and how do I get it?
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Click to expand...
Click to collapse
for that you need to install CF-ROOT kernel which is pretty good..
look here
but if you are on locked device do confirm that it is safe or not to install kernel as it may make thing much worse..
if it is unlocked ace then feel free to install it right way..
if you are new to flashing this thing then there is complete guide for cf-root Here
and allinoneram script here
Oh man thanks a lot dude! Ill thank you when I go on my pc. I don't know how to thank through the app. XD
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is your phone unlocked??
then surely give it a try
I'm not sure. How can I tell if its unlocked? The boot animation from my phone company is gone was soon as I upgraded to 2.3. Do I need to switch it to a different company's simcard or something?
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yeah if you can use phone with other service provider sim card then its unlocked one
and if you get some error or no network then mostly its locked
Well if its not unlocked, how can I unlock it?
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well about this i will not suggest anything as i have seen many people just ****ing up there phones with no success but some says it works....
some method works but i will not encourage you for doing things and screwing phone
Oh okay. I can't wait to give the whole ram thing a try though. About how much free do you have? Mines circles at around 70-90 and sometimes lower.
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SuperAce609 said:
Wont it close the app when I start it up manually though? Have you had any errors with it?
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Click to expand...
Click to collapse
nonono xD For instance. When i start my wifi some apps automatically starts, and i dont want that (bec it would be a pain if my 5+ apps started everytime i did that).
And also, some apps starts when the phone turns on, even though they dont need to be started. If you manually start an app autostarts wont harm it.
Oh okay. Sounds really good! Can't wait to see it in action
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System Tuner

Anyone uses this app yet. It was recommend by Clemsyn on XDA as a better alternative to setcpu. I download the free version in the market, but the UI is a bit confusing. Seems like a little better optimization available.
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I saw his recommendation and downloaded the free version. I its a little overwhelming as i'm still noobish, but it seems to have a larger breadth of options than set cpu. As far as its relative reliability, i'm not sure. There is no "apply" button for uv steps tho, so an unintentional finger slip can cause your phone to freeze! just try it out, see if you like it I guess
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any way to disable the memory management?
Im gonna mess around with it tonight and see if I like it. It seems like it will take a little getting use to though lol.
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rponticelli said:
Anyone uses this app yet. It was recommend by Clemsyn on XDA as a better alternative to setcpu. I download the free version in the market, but the UI is a bit confusing. Seems like a little better optimization available.
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Click to expand...
Click to collapse
I have been using this ever since it came out it replaces a lot of apps out there and the CPU tuner is compatible with dual core phones and utilizes them completely. It has an app manager, auto starts, frequency controls, sd booster and many more uses. I for one think it is one of the best apps I have in my root arsenal .
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unforgivenmercy said:
I have been using this ever since it came out it replaces a lot of apps out there and the CPU tuner is compatible with dual core phones and utilizes them completely. It has an app manager, auto starts, frequency controls, sd booster and many more uses. I for one think it is one of the best apps I have in my root arsenal .
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Click to expand...
Click to collapse
Yeah I couldn't be more impressed now that I've messed around with it, but its gonna take sometime for me to fully utilize this seeing im kinda new to a lot of these features.
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I was using this for a little and noticed something weird im running the v6 supercharger scripts and in my memory settings the last mem setting would change from 275mb to 256mb. I tried everything so that it wouldnt mess with my supercharger scripts but no go. I unistalled it and everything has been back to normal. Anyone else notice this?
tapped via supercharged atrix with cm7 and clems kernel.
jiggytom said:
any way to disable the memory management?
Click to expand...
Click to collapse
menu > settings > active tweaks > reapply memory limits > disabled
I believe this is the only option for memory, but could also be very wrong! :-0
---------- Post added at 07:17 AM ---------- Previous post was at 07:14 AM ----------
rponticelli said:
Anyone uses this app yet. It was recommend by Clemsyn on XDA as a better alternative to setcpu. I download the free version in the market, but the UI is a bit confusing. Seems like a little better optimization available.
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Click to expand...
Click to collapse
I bought the Pro version and am liking it better than SetCPU now that I have got used to it and have everything set up. I would like to see live update on the widget when the screen is on though. Lowest setting is 10 seconds.

CPU Clock

Hey guys, I know we can underclock our CPU but has anyone found a good app to either increase the min frequency and have it actually stick? The only one I've found was System tuner by 3c but it only sticks for a bit and then either hangs or just plain doesn't work. I've found that keeping the min values at about 608mhz will stop just about all music skips for me. And yes I know this will kill my battery.
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Sometimes I get lucky with ROM Toolbox's CPU settings. Set your minimum and reboot.
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thelowend said:
Sometimes I get lucky with ROM Toolbox's CPU settings. Set your minimum and reboot.
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Click to expand...
Click to collapse
Oh wow. I forgot to reboot! No frills CPU is working now. Thanks for kickstarting this thing I call a brain.
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Ok I'm getting annoyed now, no frills CPU works BUT it kills itself minutes after I leave the app. Ill set the CPU to...lets say 1ghz min and Max it will show in system panel that indeed it is staying clocked at 1ghz and not fluctuating. Then ill go do something else on my phone, for example, browse the xda forums, I come back to system panel and its fluctuating again!!! Ive tried rebooting after setting the CPU min/Max but it will still do the same thing. Ive noticed that after i exit no frills it either goes into cached processes or it just stops and acts like i killed it, any ideas?
Edit: I wanna say its a superuser hang issue, I've tried supersu but it seems to hang as well but I'm open to peoples opinions.
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Are you on cm7 or Eclipse?
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Weird... I use Rom Toolbox Pro > Performance > SD Boost and it works every time for me! Running CM7 with superuser....supersu hangs like a mofo for me on cm7
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thelowend said:
Are you on cm7 or Eclipse?
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Click to expand...
Click to collapse
CM7
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Triscuit said:
CM7
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Click to expand...
Click to collapse
OK. Lemme find my X2 and look around
Found it. Nandroiding to cm7.
Rom toolbox isn't working for me...3 FCs
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Just testing to see if the settings would stick after setting them,then rebooting.
Sliders did but the CPU obviously didn't.
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thelowend said:
Just testing to see if the settings would stick after setting them,then rebooting.
Sliders did but the CPU obviously didn't.
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Click to expand...
Click to collapse
Yep same thing I'm getting, I'm wondering if there is an init.d script that could be made that would lock it at certain frequencies. That.....is out of my knowledge
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sorry guys
this isn't possible
no matter how you try to set the min/max with ANY unit.d script or app, it just
will not stick.
at first it well seem like it's working for a few minutes. but then something happens and the kernel basically says "no that ain't gonna happen anymore" and kicks the min/max back to where it should be (the sliders in the apps won't move, but the actual system min/max and governor will be what it is supposed to be)
trust me, I've tried this from just about any angle fire the longest time.
sorry to be the bearer of bad news
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CM9 DX2 gutting

I came from a blackberry where gutting the os is a way of life.
What all can be removed without affecting function, while freeing up space?
So far, from system/apps, I have dropped most of the live wallpapers and apps I don't use
I have tried deleting ringtones I don't use but that put me into a boot loop and had to wipe and reload.
Any ideas on how to safely delete more useless files?
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it really doesn't gain you anything other than a placebo effect if you are used to devices with less than sufficient memory. The Dx2 has lots of memory and CM9 doesn't come with bloatware.
DigitalMD said:
it really doesn't gain you anything other than a placebo effect if you are used to devices with less than sufficient memory. The Dx2 has lots of memory and CM9 doesn't come with bloatware.
Click to expand...
Click to collapse
Really?
From what I have already cleaned up I can tell a difference is less lock ups already. The available ram went from 86% used to 69%
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Freezing some apps will free RAM, especially on services you don't use if those apps run by default. However the live wallpaper apk is not running if you aren't using one from that package, therefore it is redundant. If you don't use corporate exchange, try freezing the email.apk and the exchange.apk. If you feel adventurous, nandroid your cm9 and freeze all the apps that don't look important. If you get stuck with a bootloop, simply nandroid back. Simple.
I recommend freezing RomManager (we can't use it).
It wont free up RAM, but it will stop Google Play from updating it.
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What I have been doing is each morning I freeze one app, I use my phone all day and if there are no problems I delete it the next morning and freeze a new one.
So far I think I've done some good with my phone since I have deleted everything I can from the system folder.
The trick to deleting ringtones is confirm all profiles are set to the same ringer and notification. Then delete all the others.
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JStiner said:
Really?
From what I have already cleaned up I can tell a difference is less lock ups already. The available ram went from 86% used to 69%
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Click to expand...
Click to collapse
Well then you have done something amazing, since the Android memory manage strives to keep RAM around 80% full all the time, by design and that's how it works best. If you remove every single app you should be able to achieve around 90% free and everything should run like liquid butter. And yes, this Alpha is more stable if you do not touch the phone or run anything.
DigitalMD said:
Well then you have done something amazing, since the Android memory manage strives to keep RAM around 80% full all the time, by design and that's how it works best. If you remove every single app you should be able to achieve around 90% free and everything should run like liquid butter. And yes, this Alpha is more stable if you do not touch the phone or run anything.
Click to expand...
Click to collapse
Grab a 50lbs weight and go run up a hill. Now do it again with 20lbs. What's easier running with more useless weight or less?
I loaded a task manager widget that shows percentage of memory used (ram) i went from 60/404 to 123/404 after dropping useless files.
With all due respect the Android OS is nothing more than an Iphone with Blackberry problems. I have used all 3 i like Droid best but it has room for improvement, as everything does.
Im applying what i learned from the BBos to this one and it appears to work. Now you can be a negative fly on the wall all you want but someone else will read this topic and try it. Once a few do it and my results are duplicated you'll see it was useful to try something
Plus what's the worst that happens, you boot loop and have to reload?
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Just a little check in.
I booted up this morning at 193/404 that's using 52% ram
I took everything out of system/apps i could and cleaned any app off my phone i don't or can't use. I also enabled "long hold back button to kill apps" instead of jumping back to the home screen when im done in an app i kill it.
All the above are habits i learned to service on a blackberry.
I wish more people would try and get my results.
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with all due respect unless you have rewritten the Android OS, it simply doesn't work like that.
. Android likes to keep memory about 70-80 % full once it settles so that when it needs a task you were using before its faster to reactivate it than to load from scratch. You can kill things, but the OS will load them again anyway. If you fight that with 3rd party mem / task managers, it will degrade performance, not improve it. But if you insist on believing some fantasy about memory management. by all means ....
Maybe im wording this wrong.
Would it help if i changed the title to gutting an android.
I love CM9, ive even bought the developer a case of beer. Hahaha
Im not doubting what the system wants to do. Im just trying to guide it better by removing worthless files and managing ram with white and black lists.
For example I dont need dropbox to be running in the background when im not using it.
Make sense
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JStiner said:
Maybe im wording this wrong.
Would it help if i changed the title to gutting an android.
I love CM9, ive even bought the developer a case of beer. Hahaha
Im not doubting what the system wants to do. Im just trying to guide it better by removing worthless files and managing ram with white and black lists.
For example I dont need dropbox to be running in the background when im not using it.
Make sense
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Click to expand...
Click to collapse
You will notice a big Jump in performance if you stop using a task manager.
You are better off playing with min free values and oom adj values.
I understand removing apps and files you don't use, I.do the same thing on my nexus.
But when it comes down to it, the task manager app is REALLY doing more harm than good. Of course when you use the task manager its going to seem like its doing what you want it to, thats how the apps are written, so that you FEEL like you're getting results you want.
Fact is, task managers haven't been needed in android OS for a log time now. Most ESPECIALLY if you are running an ICS based rom.
Trust me, if you wanna see an increase in overall smoothness, mess with min free and oom settings, and dump the task manager.
Or just keep doing what you're doing, just don't get offended when almost everyone tells you that clearing apps from memory and using task manager to kill apps is doing more harm then good.
There is a HUGE difference between an app RUNNING in background, and an app being cached in RAM. If you go to your manage apps list in settings and go to running apps, you most likely won't have many apps actually running and hogging system resources. If you switch to the cached tab you SHOULD see lots of apps in cache. Which means next time you open them it will open faster and use A LOT LESS CPU to get it going.
I do agree with getting rid of appd and files you don't use tho. I have ALWAYS felt that removing apps that are cached in ram that I do not use, will give more space for apps that I DO use to be cached.
But a task manager will not grant you that ability.
I feel like i learned something new today
Thank you
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JStiner said:
I feel like i learned something new today
Thank you
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Click to expand...
Click to collapse
I also just wanna apologize, I didnt mean to come off condescending (I just re read what I posted Lol)
was just trying to inform a bit.
Any questions don't hesitate to ask. Android operates like.Linux, but not EXACTLY like Linux even tho it is VERY similar. A good thread to read on how is memory management works is the official v6supercharger thread started by zeppelinrox. That guy has torn thru the android os on the memory management level and his first few posts in that thread(even tho they may not make the most sense to you at first) have a LOT of valuable info in them.
ashclepdia said:
I also just wanna apologize, I didnt mean to come off condescending (I just re read what I posted Lol)
was just trying to inform a bit.
Any questions don't hesitate to ask. Android operates like.Linux, but not EXACTLY like Linux even tho it is VERY similar. A good thread to read on how is memory management works is the official v6supercharger thread started by zeppelinrox. That guy has torn thru the android os on the memory management level and his first few posts in that thread(even tho they may not make the most sense to you at first) have a LOT of valuable info in them.
Click to expand...
Click to collapse
No harm done. Tone is hard to convey through text. I read everything in a mono tone voice ans pull from it what i need.
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Holy hell v6supercharger is the way to go, my music doesn't skip anymore.
Now if i could just get my home and back button switched back hahaha.
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could try http://forum.xda-developers.com/showthread.php?t=1403013
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sd_shadow said:
could try http://forum.xda-developers.com/showthread.php?t=1403013
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Click to expand...
Click to collapse
Genius, i flipped a few numbers around and it works normal again.
Never would have figured that out.
Thank you.
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JStiner said:
Holy hell v6supercharger is the way to go, my music doesn't skip anymore.
Now if i could just get my home and back button switched back hahaha.
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Click to expand...
Click to collapse
Did you also turn on the option.in v6supercharger for the nitro lag nullifier also? It used to be option #20 i believe.
I always did and i swear, (placebo or not), it used to smooth out everything even more.
Then on top of v6, i would also run Kick ass kernelizer(KAK) with. I/O tweaks implemented (make a nandroid first just in case it bootloops ya..if it bootloops just pull battery and.put back in then plug phone into wall,.it will.boot BSR(since our bsr hijacks charge.mode) & you can restore nandroid) and it would be even more buttery.
Enjoy!
I'm glad I could help turn you away from task managers/killers
Your Android experience should improve greatly
Did the kak at lunch. Running nicely so far.
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JStiner said:
Holy hell v6supercharger is the way to go, my music doesn't skip anymore.
Now if i could just get my home and back button switched back hahaha.
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Click to expand...
Click to collapse
Did cm9 switch the buttons? I've been wanting to flash either cm9 or paranoid android just haven't had time to yet.
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