LG optimus G User Manual page 82

Settings
Protect SD card - Checkmark to
protect the SD card. When the SD card
is protected, applications must request
permission to read data from external
storage.
DEBUGGING
USB debugging - Checkmark to turn on
debug mode when USB is connected.
Allow mock locations - Checkmark to
set the device to a mock location.
Select debug app - Allows you to select
the debugging application.
Wait for debugger - Checkmark to wait
for debugger. Debugged application waits
for debugger to attach before executing.
INPUT
Show touches - Checkmark to show
visual feedback when the screen is
tapped.
Show touch data - Checkmark to make
tap data visible on the screen.
DRAWING
Show layout bounds - Checkmark to
show clip bounds, margins, etc.
Show GPU view updates - Checkmark
to flash views inside windows when
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drawn with the GPU.
Show screen updates - Checkmark to
flash areas of the screen when they are
updated.
Window animation scale - Allows you
to set the window animation scale.
Transition animation scale - Allows
you to set the transition animation scale.
Animator duration scale - Allows you
to set the animator duration scale.
Disable HW overlays - Checkmark to
use the GPU for screen compositing.
Force GPU rendering - Checkmark
to use the 2D hardware acceleration in
applications.
MONITORING
Enable strict mode - Checkmark to flash
the screen when applications operate for
a long period of time on the main thread.
Show CPU usage - Checkmark to
overlay the current CPU usage on the
screen.
Profile GPU rendering - Checkmark
to measure rendering time in adb shell
dumpsys gfxinfo.