RFR: JDK-8323695 RenderPerf (2D) enhancements (23.12)

[Laurent Bourgès]

On Fri, 12 Jan 2024 21:34:32 GMT, Laurent Bourgès <lbourges at openjdk.org> wrote:

> - new executor modes (buffer & volatile)
> - support parallel rendering on several frames and / or screens
> - added robot calibration + optionally use rounded duration to min frame latency (120Hz)
> - give more statistics in verbose (-v)
> - added new command-line arguments
> - added version + help information

@prrace here it the renderperf patch.
@mrserb

-------------

PR Comment: https://git.openjdk.org/jdk/pull/17408#issuecomment-1890601519