Multiple WINDOWS COMP fps drop issue (all versions 0.88 and 0.99)

I report this problem when managing multiple independent outputs, problem found on both version 0.88 and 0.99 (non experimental)

When I activate the performance on 8 Windows Comp (1920x1080), regardless of whether the flow arrives from a single or more TOP, the framerate drops drastically (24-27 FPS) .

I found out, however, that if I change (via a keyboard shortcut without exiting the perform mode) the Windows COMP parameter “Opening Size” by setting any value from 0 to 2, the framerate returns between 47 and 54 fps.

This operation is successful only if the value change is made during the perform mode.

The server from which I perform:

Intel i7-9700K
64 GB DDR4 3000 MHz
2 x NVidia RTX 2080 Ti
2 x M.2 NVMe 1TB

You should only use a single Window COMP to drive your outputs. Make one that covers all of the outputs and arrange your content using Container COMPs within it. Using multple windows will cause undefined results as different GPU drivers handle the situation differently. Some will have each one take turns getting a vsync, resulting in drastically lower FPS

2 Likes