[android-developers] System.gc() causing slowdown from the second start of Activity

I know that System.gc() is needless and discouraged, and I don't try
to suggest otherwise, but the point is that it shouldn't cause issues
either (i.e. it should be useless at most).

If I add the following code to my Activity.onPause(), then my
application will be slow after the second start of the activity:

if (isFinishing()) {
System.gc();
}

I.e. the framerate in my GLSurfaceView will be reduced by 50%. If I
remove the System.gc() call, everything is totally fine, no matter how
many times I start the activity again (i.e. start it again after it
was finished()).

The relevant source codes here:
http://stackoverflow.com/questions/11601914/system-gc-causing-slowdown-from-the-second-start-of-activity

Please help! GC is discouraged but shouldn't mess up the View/Layout
destroying system of Android.

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