A Vulkan layer to display information about the running application using an overlay. To turn on the layer run : VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay /path/to/my_vulkan_app List the available statistics : VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_CONFIG=help /path/to/my_vulkan_app Turn on some statistics : VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_CONFIG=submit,draw,pipeline_graphics /path/to/my_vulkan_app Position the layer : VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_CONFIG=submit,draw,pipeline_graphics,position=top-right /path/to/my_vulkan_app