[HTC One X] mmx6688:
>> A super easy way to improve One X Multitasking significantly (rooted phone only)

Guys, there are some discussion on different post indicated One X Multitasking is not as good as previous HTC phones. Sometimes you can only have very few APPs in background, and sometimes you switch APPs and find it has to reload or not return to the place where you were.

Here is a method I have tried which is significantly improve the Multitasking for One X. It only worked for rooted phone, so if you are not rooted, no need to try below action. It will not work.

1. Go to Google Player store to download and install APP "System Tuner" (it is free)

2. Run System Tuner. In its main screen push "Active Tweaks" (right besides the CPU button)

3. In the new windows, up right press Auto-kill tweaks. It will bring another screen show all the value indicate the lowest memory to trigger auto-kill by system default during out-of-memory for each group. (you do not need to care what does it means if you not know it). You'd better to make a screen shot to save these value. So if you do not like the change below you can modify to the default value.

4. There are two buttons at the bottom of screen, press the bottom left button, then in pop windows choose the second choice which I think is good enough for One X. I do not see the need you manually change the value for each group and try to figure out that is the best, just choose from list provided is enough).

After that you will see all the 6 figures has changed to 4M, 8M,10M,16M,24M,32M. And it is done. Now you can try to see how good Multitasking is on your One X.

You do not need to keep System Tuner APP alive, after the action above it has change some files in system and it will mostly kept there. These change make the auto-killer not so strictly like before. Of course if you reboot the phone those setting will change back to default. And you can do those action again. And you can use the bottom right button setting to make it works after even reboot but I do not want to go into detail for that.(not to change make it works after the reboot make it easy for you to change back to default value just by re-boot the phone).

Some notes: you do not need to read below at all if you not interested in)

- System Tuner is a very powerful tool can do lots of thing. I would not recommend you use it for other modification of the system unless you know what you are doing.

- Some simple explanation of the display info's meaning for action 3 above -

Android puts each running app into 1 of 6 Out Of Memory(OOM) groups based on their priority. They are FOREGROUND_APP, VISIBLE_APP, SECONDARY_SERVER, HIDDEN_APP, CONTENT_PROVIDER, and EMPTY_APP. The value after each group is the amount of memory limits trigger OOM condition that will start kill APP. The lowest group (EMPTY_APP) get killed first.

For my One X EMPTY_APP is set to 80M as default. And if you click right white icon on that screen it will show what APPs under each group. Actually most APPs you have will be in EMPTY_APP group which being killed first.

- Since some guy reported that latest ROM update make multitask better, so probably HTC has changed the value for each group to small limit. If you can give screen shot and tell which ROM version you are on we can verify that. Or you can just report the value for EMPTY_APP. (mine is 80 and not upgrade to latest rom yet)

I hope it will helps those who suffered from bad multitask performance of One X. Enjoy and thanks the author of "System Tuner"