LG LGL39C - Manual (Page 81)

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Settings
INPUT
Show touches - Checkmark to show visual feedback when the screen is touched.
Show touch data - Checkmark to make touch 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 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.
Enable traces – Allows you to select enabled traces.