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Why do roms get slower with time?

I notice that when you first flash a ROM its fast and smooth but after a few Weeks its starts allowing down. How do you fix this?
Sent from my MIUI.us Sensation 4G using XDA App

Its the other way around for me... :S
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balance
aamir123 said:
I notice that when you first flash a ROM its fast and smooth but after a few Weeks its starts allowing down. How do you fix this?
Sent from my MIUI.us Sensation 4G using XDA App
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It's difficult to answer this in general.
Also I don't pretend to be knowledgeable about the full scope of cases.
Often this has to do with a caching strategy and memory resource management strategy and as such you will observe this phenomenon on many platforms with any OS. Optimal caching is about resource management for short term satisfaction (and spectacular speeds while it lasts) or long term equilibrium.
Android makes it easy to cook your own ROM. the task is still about acquiring a huge amount of knowledge but it is not a difficult job, just a big one.
NB: when you pick a good ROM you'll observe that they do not slow down with time .

With the stock rom I haven't had the slowing down experience (and I just flashed arhd so I can't comment on that), except with messaging app which is understandable since I started with very little messages and now I have almost 3k.
offtopic :This slowwing down over time reminds me of M$ operating systems but they are getting better at it.

I get the same but I thin it has to do with all the crap I install on my phone and then all that collects more crap to make my phone slower

If you don't want it to slow down, don't install any applications beyond what comes with the ROM. Simple.

Just wipe cache and dalvik every week,
And deleting some big apps will help too.
And reboot your phone in the morning. That will delete temp files
sent from my Nokia 3310

thanks I'll try that! I figured it had something to do with cache.
stroobach said:
Just wipe cache and dalvik every week,
And deleting some big apps will help too.
And reboot your phone in the morning. That will delete temp files
sent from my Nokia 3310
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Sent from my MIUI.us Sensation 4G using XDA App

Just a thought but i got sdmaid and cachecleaner off the market. Cachecleaner got rid of a lot of useless stuff but I've seen a huge improvement in speed with sdmaid pro. Worth a shot
Sent from my HTC Sensation XE with Beats Audio Z715e using XDA App

mf2112 said:
If you don't want it to slow down, don't install any applications beyond what comes with the ROM. Simple.
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stroobach said:
Just wipe cache and dalvik every week,
And deleting some big apps will help too.
And reboot your phone in the morning. That will delete temp files
sent from my Nokia 3310
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this are probably the biggest reasons.

its just a general android problem. the more applications you install the slower your phone will be

billobob said:
its just a general android problem. the more applications you install the slower your phone will be
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lol windows isn't immune either

aamir123 said:
I notice that when you first flash a ROM its fast and smooth but after a few Weeks its starts allowing down. How do you fix this?
Sent from my MIUI.us Sensation 4G using XDA App
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Switch of your phone at least every 5 days... No good if phone runs non-stop.

Seeder - lag reduction app

http://forum.xda-developers.com/showthread.php?t=1987032&nocache=1
has anyone tried this on their kindle fire? Notice any significant performance improvement? Increased battery life consumption?

Try the apk... I felt It's quite a battery drainer.
Sent from my Nexus 7 using xda premium

I love it, it acts weird and shuts off, but really works well

Placebo. Placebo. Placebo.

Urahara said:
But wouldn't that just be a huge waste of development since it's free?
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$1.50 in the play store. The dev has made thousands off this snake oil.

Ok, I'm probably wrong, but I believe placenta is a body part found in women. The umbilical cord goes through it, or something. Probably wrong, but, YOLO.
Sent from somewhere too far away from my computer.

veeman said:
Placebo. Placebo. Placebo.
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I can't speak for the KF1 because I haven't loaded this app on mine yet, but I can say that certain things do load faster with this app. I'm not saying that games run better, but there is a noticeable difference when navigating back to the home screen or launching the messaging app on my phone. I would assume that this might help the KF1 because of the somewhat older hardware, since the consensus seems to be that newer hardware already uses this sort of tactic to reduce CPU lag. Obviously I didn't read all one billion pages of the "discussion" about whether this works or not, so please let me know if I'm super wrong.

Gave it a spin on my kindle fire 1 and noticed absolutely zero performance difference. I'd have to agree it is a placebo, at least on the kf1
Sent from my Nexus 7 using xda app-developers app

I felt that it slowed it down especially when playing games.
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[ART] How stable is it? Should I enable it?

Wondering if I should enable this. Have you guys noticed improvements?
Sent from my Nexus 5 using xda app-developers app

Some people say its a placebo effect, but i personally have noticed improvements. I run it exclusively
sent from my HAMMERHEAD neXus

Where I really notice the difference is scrolling, even through the system it just feels "right"
Sent from my Nexus 5 using XDA Premium 4 mobile app

Is there like a list of apps that dont work with ART?

EarlZ said:
Is there like a list of apps that dont work with ART?
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Try searching. Google nexus 5 apps not working art xda

Id say its pretty stable and if in doubt you can always go back
---------- Post added at 05:55 PM ---------- Previous post was at 05:53 PM ----------
CRIME INC. said:
Some people say its a placebo effect, but i personally have noticed improvements. I run it exclusively
sent from my HAMMERHEAD neXus
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For some it looks like as its a placebo affect, but when you launch CPU intensive apps such as Photoshop touch and other cpu intensive apps you start to see the affect.

Had some issues with the Facebook app on ART (seems to be fixed now), but otherwise, it's been flawless. No issues.
However, I will be honest and say that the speed improvements have only been marginal for me.

Thanks guys! Will enable it. Can't wait to root and install PA!
Sent from my Nexus 5 using xda app-developers app

I can see a difference between ART and dalvik. Apps are snappier and battery life is slightly better. It's very smooth. The only thing on the negative side is some apps will not work (very few) and boot time takes a couple of seconds longer. Other than that, it's great!
Sent from my Nexus 5 using XDA Premium 4 mobile app

captainwahid said:
boot time takes a couple of seconds longer. Other than that, it's great!
Sent from my Nexus 5 using XDA Premium 4 mobile app
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Really? I find boot time is quicker. Odd :/
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ZacksBuilds said:
Really? I find boot time is quicker. Odd :/
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Well I'm including when it optimizes the apps. Without that it definitely boots quicker but when it optimizes apps, it does add a couple of seconds.
Sent from my Nexus 5 using XDA Premium 4 mobile app

First thing I do after I flash a new ROM is enable ART Pretty much the best thing to happen for performance on Android since Project Butter on Jellybean. It's quite stable, and most of the big apps that used to be buggy with ART have been fixed. After the initial boot after switching to ART (which takes a few minutes, depending on the number of apps you have installed), boot time is quicker, and everything is just buttery smooth. If you thought that the phone couldn't get faster, you're wrong. It does something to the scrolling especially that just makes everything fly.

I've been using it for a few hours. HOLY THIS IS SMOOTH
Sent from my Nexus 5 using xda app-developers app

I just installed AOSPA 4.0 W/ Franco r25 and art won't stick. Any ideas?
Sent from my Nexus 5 using xda app-developers app

Am having the same issue but am running stock rooted 4.4.2 with Franco r25. I heard that Xposed interferes with it. So I uninstalled Xposed and performed a factory reset, but I'm having the same problem, Art won't stay on as default and the N5 goes back to Dalvik.

stoosh666 said:
Am having the same issue but am running stock rooted 4.4.2 with Franco r25. I heard that Xposed interferes with it. So I uninstalled Xposed and performed a factory reset, but I'm having the same problem, Art won't stay on as default and the N5 goes back to Dalvik.
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All I had to do was remove xposedframework and delete gravity box .
Device: Nexus 5 16gb Black
ROM: AOSPA 4.0BETA w/ Franco r25

Ran Art from day one on a bone stock N5. In comparison to a similar N5 on Dalvik there was a slight difference. Barely noticeable.
Benchmark scores are different in favor of ART.
App sizes are bigger.
Yesterday I rooted, installed Xposed and Gravity. It isn't compatible with ART yet, so I kept Dalvik.
To be honest, you won't see a difference. Split seconds are not noticeable to us. How snappy do you need your phone to be? ART or Dalvik, you will see no lag.
Sent from my Nexus 5

Neurotica said:
Ran Art from day one on a bone stock N5. In comparison to a similar N5 on Dalvik there was a slight difference. Barely noticeable.
Benchmark scores are different in favor of ART.
App sizes are bigger.
Yesterday I rooted, installed Xposed and Gravity. It isn't compatible with ART yet, so I kept Dalvik.
To be honest, you won't see a difference. Split seconds are not noticeable to us. How snappy do you need your phone to be? ART or Dalvik, you will see no lag.
Sent from my Nexus 5
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Well every device is different. I compared to a nexus 5 on dalvik and mine was surely faster.
Device: Nexus 5 16gb Black
ROM: AOSPA 4.0BETA w/ Franco r25

ZacksBuilds said:
All I had to do was remove xposedframework and delete gravity box .
Device: Nexus 5 16gb Black
ROM: AOSPA 4.0BETA w/ Franco r25
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I did exactly that, factory reset the phone but ART still isn't sticking it's really annoying.

It takes a long time to "upgrade" after installing nightlies. For me it takes an average of 15 minutes. It has to upgrade 229 apps.

[Q]Battery: Dalvik vs ART

I've heard the battery kinda sucks on the nexus 5. I'm wondering if ART improves it significantly or just a bit compared to optimized dalvik.
Sent from my Nexus 7 using xda app-developers app

datallboy said:
I've heard the battery kinda sucks on the nexus 5. I'm wondering if ART improves it significantly or just a bit compared to optimized dalvik.
Sent from my Nexus 7 using xda app-developers app
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Either will do battery drain based on usage and the kind of usage. I personally use ART, no real issues of battery drain. If you observe severe drain, you can always try one of the great custom kernels floating around, great developers and can really maximize battery life more even for Nexus 5 battery.

datallboy said:
I've heard the battery kinda sucks on the nexus 5.
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What are you basing this on? Just general perception? Or just a sweeping generalisation which applies to all Nexus 5's....
I'm wondering if ART improves it significantly or just a bit compared to optimized dalvik.
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ART is going to eventually replace dalvik, but still in its infancy. It's not going to be a magic bullet to suddenly double your battery life, otherwsie we'd all be doing it..
How much difference it will make will vary for your usage, but I doubt it will be 'significant'. It could even make things worse. Experiment and see for yourself.
Battery life is based on how you use your device. It varies so much because there are so many variables, not just ART / dalvik.
It is still bound by the laws of physics...you can work out and understand what is using your battery before assuming that it must be awful or drain.
But in summary no, change your perception first: unless you actually have a defective unit, the battery does not just 'kinda suck'....

I'm just curious because of different articles I've seen, I haven't received my devices yet. I own a nexus 7 and I'm use to the battery life I get from it.
Only reason why I'm wondering is so I can install xposed since ART doesn't work with it. If there's no battery difference, I'll just flash optimized dalvik and bionic patch and use dalvik.
Sent from my Nexus 7 using xda app-developers app

There are already at least 2 existing threads for this topic in the General forum HERE and HERE.
Please search first before creating new threads...
Thread closed.

Running ART

I just found out that our devices are compatible with ART Runtime. I just enabled it and it hasn't been long enough to notice any improvements. Has anyone enabled it and what are your impressions?

NoFanboy said:
I just found out that our devices are compatible with ART Runtime. I just enabled it and it hasn't been long enough to notice any improvements. Has anyone enabled it and what are your impressions?
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I felt what I thought was a noteworthy increase in speed on my Galaxy Nexus when I switched to ART, but my M8 is so fast I imagine any performance increases are less visible.

Aware me?
Sent from my HTC One M8!
U WOT M8?

Art seems really fast, apps faster
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