I added timing calculations to the eglSwapBuffers call, like:
auto t0 = std::chrono::high_resolution_clock::now();
eglSwapBuffers(display, surface);
auto t1 = std::chrono::high_resolution_clock::now();
printf("%s swap %.2f ms\n", pWindow->label(),
std::chrono::duration<double,std::milli>(t1-t0).count());
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https://bugs.launchpad.net/bugs/2153492
Title:
Regression in OpenGL Wayland performance (not NVidia issue)
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