chris@chris-laptop:~$ glmark2
** GLX does not support GLX_EXT_swap_control or GLX_MESA_swap_control!
** Failed to set swap interval. Results may be bounded above by refresh rate.
=======================================================
    glmark2 2014.03+git20150611.fa71af2d
=======================================================
    OpenGL Information
    GL_VENDOR:     VMware, Inc.
    GL_RENDERER:   llvmpipe (LLVM 8.0, 256 bits)
    GL_VERSION:    3.1 Mesa 19.0.8
=======================================================
** GLX does not support GLX_EXT_swap_control or GLX_MESA_swap_control!
** Failed to set swap interval. Results may be bounded above by refresh rate.
[build] use-vbo=false: FPS: 182 FrameTime: 5.495 ms
** GLX does not support GLX_EXT_swap_control or GLX_MESA_swap_control!
** Failed to set swap interval. Results may be bounded above by refresh rate.
[build] use-vbo=true: FPS: 184 FrameTime: 5.435 ms
** GLX does not support GLX_EXT_swap_control or GLX_MESA_swap_control!
** Failed to set swap interval. Results may be bounded above by refresh rate.
[texture] texture-filter=nearest: FPS: 209 FrameTime: 4.785 ms
=======================================================
                                  glmark2 Score: 191
=======================================================