Hey guys... I feel like I cannot keep the phone on for more that 72 hours continuously.
I'm using Galaxy SII, G version. Currently everything original (no custom rom/kernel)
I believe that most of Android phones have the same problem.

After 50 hours++ of up time of the phone (I mean the phone keeps on for 50 hours), The phone will become noticeable lag, but just a bit, not too much. One of the best evidence is in the game Fruit Ninja. I will feel the lag everytime I slash the fruit.
I'm sure that most apps is closed (except background apps like samsung keypad) and my battery usage graph is in straight horizontal line (without any optimize software, only with BetterBatteryStats). Only 500 - 600MB of RAM is used and I think this is normal.
After I restart the phone, the phone will become smooth and the RAM will be 300 - 400MB used only. Others do not show any difference.
And sure, the phone will repeat the same problem after some hours.

I wish I can keep the phone on continuously and no need to restart it frequently just like normal phones.

Can someone share some experience about this?
Is there any solution for this?
Or this is the nature of Android?
Can Custom ROM solve this?

This post has been edited by ZRong223: Jan 27 2012, 12:40 PM

G version...
One of my friends with Galaxy Note reported the same problem.
What's your phone's current uptime now? (Settings > About Phone > Status)

My friend does not perform maintainence well on his Galaxy Note. So I'm not sure about Note.
Hope the future updates can help. But I'm sure that it will make the phone heavier...
Is there any more suggestion for my problem?

Well I installed Memory Booster as my first experiment to solve this problem, though it will drain my juice a lot... I hope it isn't hardware compatibility issue. JL

This post has been edited by ZRong223: Jan 27 2012, 08:36 PM

I had asked at that thread before. But none of them reply my question. Most of them are using non-G version.
Maybe after some time I will ask this question at "Rooting i9100G" thread...