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I have a Samsung Galaxy S3 I9300 running CyanogenMod 11 (Android 4.4.4). Over time I have noticed that most of my system stability issues are because Android appears to have a "timeout" period for tasks, and if a task does not respond within a certain time (e.g. when I try to load a web page with enough Javascript to put significant load on a latest generation Mac), the OS declares that the task has hung and axes it. This has been happening with increasing frequency as mobile websites have been expecting me to have an increasingly powerful phone, e.g. it does not happen on my Samsung Galaxy S5 nor on a friend's Galaxy S6 Edge.

I tried looking under my sysctl and build settings on System Tuner for a setting that controls this "activity response timeout" but couldn't find any. Is there a way to increase this timeout?

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This timeout is actually hardcoded into the runtime, as below:

In Android, application responsiveness is monitored by the Activity Manager and Window Manager system services. Android will display the ANR dialog for a particular application when it detects one of the following conditions:

  • No response to an input event (such as key press or screen touch events) within 5 seconds.

  • A BroadcastReceiver hasn't finished executing within 10 seconds.

This is relevant to apps themselves, but Chrome (or whatever browser you are using) can also be affected as above.

For further information refer to the Android Developer's Guide: Maintaining Application Responsiveness.

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  • Nice move, Google... have the activity manager and window manager's timeout hard-coded so that people are forced to always purchase the latest phone because their old phones start crashing all the time... luckily, Android is an open source OS and I might be able to modify this.
    – RAKK
    Oct 26, 2015 at 13:34
  • I'm not actually sure if it really is hardcoded, just that it can't be altered by standard root modifications.
    – Tamoghna Chowdhury
    Oct 26, 2015 at 15:51

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