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[?] [Script] V6 SuperCharger !! HTK & BulletProof Launchers! FIX MEMORY FOR ALL ANDRO
so far nobody has mentioned this, not even sure how many people look in this section of the forums, but here goes.
anyone out there willing to test and port this over for fascinate?
http://forum.xda-developers.com/showthread.php?t=991276
general info:
Main points:
- CUST-OOMIZER! Use your settings without Autokiller Memory Optimizer or Auto Memory Manager!
- For newer phones with lots of ram, use the 3rd slot to set how much free ram you want.
- If you have /system/etc/rootfs/init.mapphone_umts.rc, it makes a backup and edits that single file. This is nice and tidy.
... Thank to kabaldan for pointing out the importance of certain things.
- Most Custom ROMs - If you have a /system/etc/init.d folder, it creates 99SuperCharger in there and edits /data/local.prop (20 entries added for adjusting priorities and groupings). You shouldn't need to configure anything else.
- Stock ROMs - If you have neither, it creates /data/99SuperCharger.sh which you can load up on boot (run as root) with Script Manager. The OOM groupings work as well since it happens on boot in local.prop (20 entries added)
Note: For some reason, the minfree levels do not stick on some Custom ROMs. I don't know why this is. Maybe a bug in GingerBread?
........ If this happens to you, use Script Manager to load /system/etc/init.d/99SuperCharger "on boot" and "run as root"
In case of any error, you will find a related help file in the root of your SD card.
So... I think this covers ANY Android ROM
It also determines if you're using Script Manager and gives appropriate information/tips/help files depending on what other factors are present.
The above is really ALL YOU NEED TO KNOW.
The V6 SuperCharger script does everything!
Anything below is extra info!
It's just a single file... 806 lines (807 if you count the blank line at the end LOL)
So... What's it do?
It makes your phone FAST... super snappy with better multitasking!
If you read between the red lines below (parts 1-3), you'll see that at first it was only about minfrees and launcher redraw.
But after installing GingerBread, I saw that it needed more work than Froyo LOL.
Groupings were ALL MESSED UP and made NO SENSE to me whatsoever...
So I figured out how to group them more like CM6 (Froyo) but that still wasn't good enough...
I further rearranged the OOM Groupings and Priorites and lowmemorykiller values for a...
COMPLETE MEMORY MANAGEMENT FIX!
That's basically what this is
Faster than ever, no launcher redraws, multitasking is better... why?
Because it works with the lowmemorykiller and letting it work the way it's meant to work.
Also, because of the rearrangement, it works the same on all roms!
The problem with using minfree tweakers like AMM or AKMO is that it doesn't work the same on all roms.
Secondary apps may be in slot 3 on some roms but in slot 5 in others!
That's why you hear people comment "I tried AKMO but it didn't do anything..."
Most likely it didn't do anything because the apps weren't sitting where they were expected to be.
Upon installation, V6 SuperCharger will first clean up any previous supercharging so none of your files get cluttered.
But if you toggle between Hard To Kill and BulletProof launchers, the memory adjustments aren't affected.
So you can leave your minfrees at stock/default settings and apply the Hard To Kill Launcher and still get the OOM Grouping/Priority fixes.
So if you love your ROMs memory settings, just try the HTK Launcher/OOM Fix... you won't regret it
Ah, I used this script on my wife's Eris, and it did fix the speed a tad, no clue how it would react on an already fast phone, but hell, any little bit helps.
Izeltokatl said:
so far nobody has mentioned this, not even sure how many people look in this section of the forums, but here goes.
anyone out there willing to test and port this over for fascinate?
http://forum.xda-developers.com/showthread.php?t=991276
general info:
Main points:
- CUST-OOMIZER! Use your settings without Autokiller Memory Optimizer or Auto Memory Manager!
- For newer phones with lots of ram, use the 3rd slot to set how much free ram you want.
- If you have /system/etc/rootfs/init.mapphone_umts.rc, it makes a backup and edits that single file. This is nice and tidy.
... Thank to kabaldan for pointing out the importance of certain things.
- Most Custom ROMs - If you have a /system/etc/init.d folder, it creates 99SuperCharger in there and edits /data/local.prop (20 entries added for adjusting priorities and groupings). You shouldn't need to configure anything else.
- Stock ROMs - If you have neither, it creates /data/99SuperCharger.sh which you can load up on boot (run as root) with Script Manager. The OOM groupings work as well since it happens on boot in local.prop (20 entries added)
Note: For some reason, the minfree levels do not stick on some Custom ROMs. I don't know why this is. Maybe a bug in GingerBread?
........ If this happens to you, use Script Manager to load /system/etc/init.d/99SuperCharger "on boot" and "run as root"
In case of any error, you will find a related help file in the root of your SD card.
So... I think this covers ANY Android ROM
It also determines if you're using Script Manager and gives appropriate information/tips/help files depending on what other factors are present.
The above is really ALL YOU NEED TO KNOW.
The V6 SuperCharger script does everything!
Anything below is extra info!
It's just a single file... 806 lines (807 if you count the blank line at the end LOL)
So... What's it do?
It makes your phone FAST... super snappy with better multitasking!
If you read between the red lines below (parts 1-3), you'll see that at first it was only about minfrees and launcher redraw.
But after installing GingerBread, I saw that it needed more work than Froyo LOL.
Groupings were ALL MESSED UP and made NO SENSE to me whatsoever...
So I figured out how to group them more like CM6 (Froyo) but that still wasn't good enough...
I further rearranged the OOM Groupings and Priorites and lowmemorykiller values for a...
COMPLETE MEMORY MANAGEMENT FIX!
That's basically what this is
Faster than ever, no launcher redraws, multitasking is better... why?
Because it works with the lowmemorykiller and letting it work the way it's meant to work.
Also, because of the rearrangement, it works the same on all roms!
The problem with using minfree tweakers like AMM or AKMO is that it doesn't work the same on all roms.
Secondary apps may be in slot 3 on some roms but in slot 5 in others!
That's why you hear people comment "I tried AKMO but it didn't do anything..."
Most likely it didn't do anything because the apps weren't sitting where they were expected to be.
Upon installation, V6 SuperCharger will first clean up any previous supercharging so none of your files get cluttered.
But if you toggle between Hard To Kill and BulletProof launchers, the memory adjustments aren't affected.
So you can leave your minfrees at stock/default settings and apply the Hard To Kill Launcher and still get the OOM Grouping/Priority fixes.
So if you love your ROMs memory settings, just try the HTK Launcher/OOM Fix... you won't regret it
Click to expand...
Click to collapse
I don't think this will work with the fascinate "If you have /system/etc/rootfs/init.mapphone_umts.rc"... the fascinate is CDMA. This will only work with AT&T or T-mobile as they are UMTS
vudiff said:
I don't think this will work with the fascinate "If you have /system/etc/rootfs/init.mapphone_umts.rc"... the fascinate is CDMA. This will only work with AT&T or T-mobile as they are UMTS
Click to expand...
Click to collapse
but it does work on the HTC Eris, which is on the Verizon network??
http://forum.xda-developers.com/showpost.php?p=11178955&postcount=2
vudiff said:
I don't think this will work with the fascinate "If you have /system/etc/rootfs/init.mapphone_umts.rc"... the fascinate is CDMA. This will only work with AT&T or T-mobile as they are UMTS
Click to expand...
Click to collapse
and if you have an init.d folder and if not it uses data folder.
It won't work on ipods tho
Izeltokatl said:
but it does work on the HTC Eris, which is on the Verizon network??
http://forum.xda-developers.com/showpost.php?p=11178955&postcount=2
Click to expand...
Click to collapse
Yes it is on verizon's network. I'm guessing that file isn't doing anything on CDMA phones.
I'm not a dev but I do know my networks. I work for Alcatel-Lucent in which we translate & make the cell cabinet,towers, & customer networks communicate. We are the people that brought you verizons 3g & LTE technology. Currently working on AT&T's UMTS & LTE networks. Yes i am the inside inside man. We provide the Base Station and most routers and make them communicate for the providers... Sprint, verizon/alltel, nTelos, cricket, metroPCS, etc...
http://www.youtube.com/watch?v=7V74huEaaf4
Ya but can you read instructions?
And what's that got to do with oom groupings, priorities, minfrees home launcher and androids lowmemorykiller?
Sent from my Milestone Powered by my V6 SuperCharger
zeppelinrox said:
Ya but can you read instructions?
And what's that got to do with oom groupings, priorities, minfrees home launcher and androids lowmemorykiller?
Sent from my Milestone Powered by my V6 SuperCharger
Click to expand...
Click to collapse
Wow... chill out dude. I saw umts at the end of the file and simply was just saying that these phones are cdma. I already said I'm not a dev. Comments like yours make people not even want to comment. I'm not new to roms, rooting, etc... I started out with the original droid, then D2 and I've had the fascinate ever since it came out. Rooted & started out with superclean when it became available. Geeze
Yes well in post 5 I pointed out that it also looks for the init.d folder and if not an alternative method by using the data folder.
Has nothing to do with networks.
It has to do with which file or method is used to implement the tweaks depending on what options are available.
zeppelinrox said:
Yes well in post 5 I pointed out that it also looks for the init.d folder and if not an alternative method by using the data folder.
Has nothing to do with networks.
It has to do with which file or method is used to implement the tweaks depending on what options are available.
Click to expand...
Click to collapse
OK got ya. I didn't mean to start an argument! Sorry that I misunderstood. I learned something new today... and thank you for breaking it down for me
Ah that's ok...
Btw... cool job lol
Sent from my Milestone Powered by my V6 SuperCharger
Yeah I tried this on a friends Fascinate and it dropped dead, wouldnt boot up.
Had to Odin up and restore back to stock.
I noticed my friends swype keyboard would lag even after restore back to stock.
thus the reason to try this script in the first place.The fasciante is decent lil bugger.
Its too bad I sing its praises on Evo thought, it really kicks butt.
im using this right now on my fascinate running miui 1.9.9 and its working flawlessly... three 3g tweak also works great. thanks zeppelinrox
It works with the fascinate, I use it constantly, and it doesn't need to be ported, the author stated it should work on nearly any device/ROM setup. Just get Script Manager app from the market, open app, go to settings, browse as root, then run the V6 script. It will give instructions as it runs.
Sent via Morse code.
Just ran the script last night, while it took me a while to fidget with it and figure out what option was best for me I can't believe that cm7 could be any smoother but there is a definite difference after running the script, with no lag, or home screen redraw, my phone is as smooth if not smoother at 1GHz.then it was at 1.5GHz before the script...just want to say it was painless easy and really made a huge difference...thanks a lot!
On a side note the battery calibration that was linked in the op does seem to work but I had to figure out when to pull the battery since the original instructions where on the milestone, either way great job and thanks again, I'll run this script after any rom I go to from here on out!
Sent from my SCH-I500 using XDA App
efan450 said:
Just ran the script last night, while it took me a while to fidget with it and figure out what option was best for me I can't believe that cm7 could be any smoother but there is a definite difference after running the script, with no lag, or home screen redraw, my phone is as smooth if not smoother at 1GHz.then it was at 1.5GHz before the script...just want to say it was painless easy and really made a huge difference...thanks a lot!
On a side note the battery calibration that was linked in the op does seem to work but I had to figure out when to pull the battery since the original instructions where on the milestone, either way great job and thanks again, I'll run this script after any rom I go to from here on out!
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
I ran it last night as well. I cannot really tell a difference. What setting are you running?
Option 8 and then option 12, set to browse root, and run as root in the first config screen...afterwords reboot and run option 1...it will tell you if your home screen was easy to kill or not and gives you a list of minfrees...I had to downgrade my busy box to 1.18.2.to get everything working
Edit: I used script manager to run the script and then put the widget on my home screen to easily access it...if you run option 1 and it says your home screen is bullet proof then it did work...I seem to get much better 3g connectivity and better download speeds.
Sent from my SCH-I500 using XDA App
Recently, my keyboard has been acting crazy. Sometimes, when I attempt to type something, the letters appear in the suggested words area but nothing appears in the field in which I'm typing. I've tried switching between keyboards as a quick fix as some have recommended online but that has not worked for me. The only way I've been able to get my keyboard working again has been to reboot my phone which is a real PITA! Any solutions out there?
Also, whenever my keyboard is not working, I am also unable to make phone calls. When I click a contact's number, it populates the dialer but nothing else happens. This problem requires a reboot too. Anyone else experience this?
All of this strange behavior started within the last month or two and I don't know what happened. I've just wiped my phone and guess what? It just happened again! Please help.
I used to experience that too once in a while. It drove me crazy.
If you Google it, you'll find that it's a common issue inherent with Android devices. I believe it's related to a memory issue.
To minimize occurrences, I installed an auto memory manager. Recently, I also installed Zep's memory scripts too. Haven't had it occur since installing both (the AAM may be all you really need - available on the Market).
Hope this helps,
Flipper
Sent from my MoPho!
Ahh... that makes sense. I believe my problems may have started after I uninstalled the "AutoKiller Memory Optimizer" app. Is the "Auto Memory Manager" app a better program to use? Pros and cons?
Photon already has it's own Automatic Task Killer, one that is not an app that you can edit or change settings. You are better off without one buddy.
Sent from my MB855 using xda premium
I agree... sort of.
deedscreen said:
Photon already has it's own Automatic Task Killer, one that is not an app that you can edit or change settings. You are better off without one buddy.
Sent from my MB855 using xda premium
Click to expand...
Click to collapse
I sort of agree with deedscreen's post. Yes, the Photon does already have an automatic task killer and most of the time, it does work well. However, it doesn't work flawlessly all the time and many Photon users experiencing the keyboard lag is enough evidence to substantiate that it isn't perfect.
Now, my understanding is that an automatic memory manager is distinctly different from an automatic task killer. The memory manager supposedly works differently (I'm no developer so I'm not even going to try and explain).
Whether Auto Memory Manager is better than Auto Memory Optimizer, I can't say. I'm guessing they both work the same way so try both and see which one resolves your problems. All I know is that after installing AMM, I saw less occurrences of the keyboard lag problem popping up.
Good luck.
Has anyone else had issues of running out of memory? I often have 500+MB being used at any given time. A couple of days ago, I was using my GPS, listening to iHeartRadio and texting and my phone slowed to a crawl. Once I finally got task manager open, I had about 10MB free. I've had this happen with stock and custom ROMs.
It seems like I constantly stand at having over 400MB used.
So, how's it look for everyone else?
i've never had an issue and it should be warning you way before you get 10mb that you are low on resources
Welcome to HTC Sense.
Today, I was in a pickle because I was in a part of town I had no idea about, I was driving to and from about three places with important documents that needed to be delivered where people were waiting on me to close on a house.
Meanwhile, I'm trying to get my phone brightness up via the notification menu quick settings, open maps and find a location and navigation to there, long pressing to multitask, and text, and I was just going to fast for the phone. It was bogged down and in that hectic moment, it was just frustrating. I forgot I could have used task manager. I wonder if that would've helped me.
I love the phone. It feels great in my hand and looks sexy both physically and in its display, but this phone should not perform like the EVO 4G. I'm an HTC fanboy, but I am not above calling out a flaw. If I were an android developer wizard, I would try to fix it. But no.
I'm just trying to relate and say, I get you. ^_^
Sent from my EVO using XDA
Task manager helped in that it simply exited EVERYTHING. It kicked me out of navigation, stopped the music and brought me down to about 450MB used. Odd thing was that even though nothing was listed as running, everytime I hit refresh the memory usage was increasing.
It probably is because of sense, but it just looks so nice!
gdrocks said:
Task manager helped in that it simply exited EVERYTHING. It kicked me out of navigation, stopped the music and brought me down to about 450MB used. Odd thing was that even though nothing was listed as running, everytime I hit refresh the memory usage was increasing.
It probably is because of sense, but it just looks so nice!
Click to expand...
Click to collapse
If your rooted, try AutoKiller Memory, it tweaks the OOM settings of the kernel making it more efficient while managing your dormit and active memory cycles.
The dev has a great resource page you can learn much about what happens in the Android world when it comes to memory utilization.
megabiteg said:
If your rooted, try AutoKiller Memory, it tweaks the OOM settings of the kernel making it more efficient while managing your dormit and active memory cycles.
The dev has a great resource page you can learn much about what happens in the Android world when it comes to memory utilization.
Click to expand...
Click to collapse
Out of curiosity what are your OOM levels set at and does it help with multitasking on our devices?
boomer8403 said:
Out of curiosity what are your OOM levels set at and does it help with multitasking on our devices?
Click to expand...
Click to collapse
First, in the Development options I keep the Backgroud process limit the Standard and I set the AutoKiller Memory to Strict profile, which has given me good results so far, but you can play around with your settings because I know we don't have the same amount of apps or configuration overall.
Keep in mind also that I am not running a custom ROM, I'm STOCK rooted only without bloatware removed or any major changes.
So , when asked what are some useful apps for android often times a lot of the answers that would come back are fairly similar, because the apps have been proven useful. I’ve been looking at many useful apps and below is a small list of what I’ve tried.
- Adaway
- SetCPU
- Terminal Emulator
- Mobile odin
- Twrp (I know not an app)
- TiBu
- SD Maid
- RAM Manager
I haven’t been using SD maid and RAM manager long, not sure if its really that great.
Then I started to run into these “combo” apps.
- Andromizer Pro
o App delete restore: similar to TiBu
o CPU setting: SetCPU
o RAM Setting: RAM Manager
o 3G/4G network optimizer: Similar to 3g/4g optimizer app I’ve seen
o Wifi scan interval setting
o LCD density setting
o IMEI backup: I don’t know if this works
o Etc.
- Rom Toolbox Pro
o Rom managent: Similar to Rom manager, mobile odin, twrp/cwm for the rom?
o App manager: Similar to TiBu
o Root explorer: Similar to RE
o Scripter/TE: Similar to Terminal Emulator
o Ad blocker: similar to adaway
o SetCPU: similar to setCPU
o Etc.
- System Tuner Pro
o Backup/restore app similar to TiBu
o TE: similar to Terminal Emulator
o CPU manager: similar to SetCPU
o CPU memory control similar to RAM manager?
o Etc.
So here are my questions:
1) Are these combo apps recommended?
2) How come I rarely hear about these apps, but instead the individual apps listed in the beginning of this post are mentioned? Are these not as great?
3) These combo apps seems like a great deal, they seem to include all the individual app’s feature. So are they useful? Reliable? Should I buy these combo apps instead of the single apps?
4) Even in these combo apps there are overlaps, is one more reliable/stable than the other? Preferred over another?
Being still a noob, some individual android tweaking apps are overwhelming let alone these combo apps.
These combo apps almost seem too good to be true. I know that I tried to change my boot animation with Rom toolbox pro but didn’t work. I’m not sure if andromizer’s IMEI backup works.
Thanks!
mikoal said:
1) Are these combo apps recommended?
Click to expand...
Click to collapse
Among the combo apps you mentioned I have only used ROM Toolbox Pro. Imho it is worth its money since it packs a lot of features and has a nice user interface for a low price. However, I personally only use its AD blocker, font installer and the "Auto start manager", which is the main reason I bought this app (Auto start manager allows you to manage which intents you want your applications to catch a.k.a. "broadcast receivers"). Regarding the other features it's not that they are bad, but that I've either got alternative apps which I prefer (i.e. I use Stweaks for CPU/Kernel tweaking and Titanium Backup PRO for individual application backups) or I don't use them at all.
mikoal said:
2) How come I rarely hear about these apps, but instead the individual apps listed in the beginning of this post are mentioned? Are these not as great?
Click to expand...
Click to collapse
Individual apps are suggested for their individual features. If someone asks how to do "A" then the answers will most probably involve an application which is focused on "A" and not on an application which can do "A", but can also do "B", "C", "D" and "E", unless it is really good at doing "A".
mikoal said:
3) These combo apps seems like a great deal, they seem to include all the individual app’s feature. So are they useful? Reliable? Should I buy these combo apps instead of the single apps?
Click to expand...
Click to collapse
They are possibly reliable in a manner that you won't have as many conflicts as you'd have when having many applications that are doing similar things. Also, buying the combo apps instead of individual apps will probably cost you less in total but I'm pretty sure that in the end you'll end up using a combo app for some of its features and use other apps which are closer to your taste for the rest.
mikoal said:
4) Even in these combo apps there are overlaps, is one more reliable/stable than the other? Preferred over another?
Click to expand...
Click to collapse
I haven't used all three, so I can't give you an answer for that. I suggest choosing the one which does something you'd like to do where the others can't.
mikoal said:
Being still a noob, some individual android tweaking apps are overwhelming let alone these combo apps.
These combo apps almost seem too good to be true. I know that I tried to change my boot animation with Rom toolbox pro but didn’t work.
Click to expand...
Click to collapse
Last time I changed my boot animation using R.T.P. (ICS era) it worked. Not sure what went wrong.
There are so many useful apps, that no matter what I or anyone else will tell you it is you who will finally decide which is the best app combination for you
In a nutshell, for Android, almost every choice is a matter of personal taste. That's the magic of it, so good luck choosing!
Megaritis said:
Among the combo apps you mentioned I have only used ROM Toolbox Pro. Imho it is worth its money since it packs a lot of features and has a nice user interface for a low price. However, I personally only use its AD blocker, font installer and the "Auto start manager", which is the main reason I bought this app (Auto start manager allows you to manage which intents you want your applications to catch a.k.a. "broadcast receivers"). Regarding the other features it's not that they are bad, but that I've either got alternative apps which I prefer (i.e. I use Stweaks for CPU/Kernel tweaking and Titanium Backup PRO for individual application backups) or I don't use them at all.
Individual apps are suggested for their individual features. If someone asks how to do "A" then the answers will most probably involve an application which is focused on "A" and not on an application which can do "A", but can also do "B", "C", "D" and "E", unless it is really good at doing "A".
They are possibly reliable in a manner that you won't have as many conflicts as you'd have when having many applications that are doing similar things. Also, buying the combo apps instead of individual apps will probably cost you less in total but I'm pretty sure that in the end you'll end up using a combo app for some of its features and use other apps which are closer to your taste for the rest.
I haven't used all three, so I can't give you an answer for that. I suggest choosing the one which does something you'd like to do where the others can't.
Last time I changed my boot animation using R.T.P. (ICS era) it worked. Not sure what went wrong.
There are so many useful apps, that no matter what I or anyone else will tell you it is you who will finally decide which is the best app combination for you
In a nutshell, for Android, almost every choice is a matter of personal taste. That's the magic of it, so good luck choosing!
Click to expand...
Click to collapse
thanks a lot bro, that was an awesome answer!
Been using ST Pro since I got my phone, it does almost everything I've wanted to do with my phone so far as tweaking CPU/governors goes; very much recommended. Had a bad experience with Rom Toolbox & got jack all help from the dev, so I don't recommend it (tho obviously other people find it's a good app; in other words, YMMV)
MistahBungle said:
Been using ST Pro since I got my phone, it does almost everything I've wanted to do with my phone so far as tweaking CPU/governors goes; very much recommended. Had a bad experience with Rom Toolbox & got jack all help from the dev, so I don't recommend it (tho obviously other people find it's a good app; in other words, YMMV)
Click to expand...
Click to collapse
I'm starting to get the feeling that choosing these types of apps are similar to answering if juice defender works or which is the best ROM.
Theres so many people who swear by JD, and a lot that says any battery saving app is useless.....I guess the only true way to know is to test it out yourself.
Yep, that's a good observation For every person that says a particular app is crap, you'll find another two who says it's great.
So yeah, testing them out with your phone/the way you have it setup/the way you use it (which is after all, unique) is the way to go. That (difference in phone setup/use & rom/kernel used) probably explains people's varying experiences with the same app I'd reckon.
mikoal said:
I'm starting to get the feeling that choosing these types of apps are similar to answering if juice defender works or which is the best ROM.
Theres so many people who swear by JD, and a lot that says any battery saving app is useless.....I guess the only true way to know is to test it out yourself.
Click to expand...
Click to collapse
Look in the link below to consolidate. Thanks
http://forum.xda-developers.com/galaxy-s6/help/app-potential-bloat-safe-to-freeze-t3161615/post61958829#post61958829
thread pinned..interesting will look tomorrow evening again..will sleep now
Sounds good
Look at the link in the first post to see what I have running.
MementoM said:
I did it's really awesome, I thank you. It's a tad hard to determine exactly what was disabled as you were unable to provided a list and I'm unable to piece together all the posts as to what truly was uninstalled/disabled here is what I have always running at the moment. Any advice?. Is it safe to say everything that's running here and not in your screenshot is safe to disable?.
Click to expand...
Click to collapse
Yes, but if you disable the Catch people than I believe your Edge feature will not work. I don't use it but if you do keep it. Also if you don't use the factory email client you can safely disable that as well and not have any email issues if you use other clients.
What carrier are you on? If you reboot and have just those loading on startup you should be near 1.5GB. Now there may be events which trigger apps to run behind the scenes and there are apps to let you see what is running at startup and give you the ability to change their behavior based on specific events, however I'm not sure if those programs really work as advertised for modifying the app behavior. Tmobile users have had all kinds of memory management issues, there are mods you can make to modify the memory management aggressiveness but I have not found a need to make those changes, also with 5.11 it looks like they made it even more aggressive but again on boot up you should be closer to 1-1.5GB free RAM.