While most benchmarks are intended for the gaming industry, this simple app is for testing fillrate-bound applications such as those that need to drive high resolution displays, or many displays, or both.
#Building
##Linux
cmake .
make
##Windows
cmake -G "Visual Studio 14 2015" .
cmake --build .
Use cmake flag -DCMAKE_BUILD_TYPE=Debug to enable OpenGL debug output extension (4.3 and higher)
#Running
./4K_displaywall_bench -help
./4K_displaywall_bench -width 11520 -height 2160 -swap_interval 0
Use the width and height to define the viewport, which may span multiple displays.
If your driver does not support OpenGL 4.4 (GLXBadFBConfig), run with -gl 3 for a version 3.3 context.
#License
4K_displaywall_bench is freely available for download under the terms of the BSD3 License.