I have recently bought the Dead Trigger game on my phone. Upon factory
resetting my phone, if I start playing the game straight away, I will have
a very nice lag free experience. However, once I started signing in to my
Google Talk, Google Maps, Google Drive, and installed Tasker, the game will
start to lag, especially when there are a lot of zombies on the screen.
While waiting for Nexus 7 to be available here so I can play the game
better, I went to investigate what's the main reason for Dead Trigger to
lag, I just fired up the game, and just watch the output of adb logcat.
I noticed that once the game is up and running, the lowmemorykiller kicked
into action quite a lot, there's process xxx has died messages all over
logcat, followed by "Start proc xxx" and "scheduling restart of service
xxx" messages:
I/ActivityManager( 250): Process com.google.android.gsf.login (pid 18553)
has died.
...
I/ActivityManager( 250): Start proc com.google.android.gsf.login for
service
com.google.android.gsf.login/com.google.android.gsf.loginservice.GoogleLoginSer
vice: pid=18790 uid=10012 gids={3003, 1015, 1028, 1007, 2001, 3006}
I/ActivityManager( 250): Process com.google.android.apps.maps (pid 18716)
has died.
W/ActivityManager( 250): Scheduling restart of crashed service
com.google.android.apps.maps/com.google.googlenav.prefetch.android.PrefetcherSe
rvice in 20000ms
This died and Startproc/Restart process repeated throughout a game play.
What I don't get is that, doesn't this causes the process/service to be
killed and restarted, killed and restarted, when I am having a foreground
app that needs a lot of memory?? I have digged into the code for
ActivityManagerService.java, and it looked like it have no way to tell
which process is killed by the lowmemorykiller and which process crashed.
Other than uninstalling the apps (I definitely need Maps, Talk and Tasker),
is there any other way to tell the ActivityManager not to restart any of
the services until I am done playing the game?
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