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142f82fc25
Use -Dawt.window.counters to enable.
To output counters per second to stdout/stderr,
use -Dawt.window.counters=stdout or =stderr.
A counter by the name swing.RepaintManager.updateWindows
is always available for Swing applications, but it does not
accurately correspond to frames per second.
Toolkit-dependent counters provide much better accuracy.
On Wayland with memory buffers as the backend two are available:
java2d.native.frames - frames delivered to the Wayland server
java2d.native.framesDropped - fully formed frames that were not
delivered to the Wayland server
(cherry picked from commit 872e73ed1e)
Welcome to the JDK!
For build instructions please see the online documentation, or either of these files:
- doc/building.html (html version)
- doc/building.md (markdown version)
See https://openjdk.org/ for more information about the OpenJDK Community and the JDK and see https://bugs.openjdk.org for JDK issue tracking.