Seconded. Although, I'm not entirely sure that anything substantial currently exists. The program would need to be written by someone. I believe Michael is very busy at the moment.Isn't there some tests that are comparable using KDE QT that could be put in the test suite?
The online documentation contains this brief reference to write your own benchmark: Chapter 5: Writing a Benchmark. There's nothing much of use in there for a primitive graphics-related benchmark. Plus there's another issue at hand, what rendering engine should be tested? Qt is capable of utilising multiple backends: the native renderer (XRender), Raster and OpenGL. See here: Qt Labs Blogs » So Long and Thanks for the Blit! I suppose all three engines could be tested in order to provide a comprehensive comparison. The basic SVG rendering test performed is described in detail here: QSvgRenderer Class Reference.
Hopefully someone else is of more help than I was.