alright here you go.
conradfay@conradfay-M14xR2-Ubuntu:~$ updatedb; locate libGL.so.1
updatedb: can not open a temporary file for `/var/lib/mlocate/mlocate.db'
/home/conradfay/primus/lib/libGL.so.1
/usr/lib/i386-linux-gnu/mesa/libGL.so.1
/usr/lib/i386-linux-gnu/mesa/libGL.so.1.2.0
/usr/lib/i386-linux-gnu/primus/libGL.so.1
/usr/lib/nvidia-current/libGL.so.1
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2.0
/usr/lib/x86_64-linux-gnu/primus/libGL.so.1
/usr/lib32/nvidia-current/libGL.so.1
/usr/nvidia/lib32/libGL.so.1
/usr/nvidia/lib32/nvidia-current/libGL.so.1
glxspheres
conradfay@conradfay-M14xR2-Ubuntu:~$ glxspheres
Polygons in scene: 62464
Visual ID of window: 0xbd
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile
60.467664 frames/sec - 67.481913 Mpixels/sec
60.115434 frames/sec - 36.565925 Mpixels/sec
59.984490 frames/sec - 37.088410 Mpixels/sec
59.982917 frames/sec - 37.087438 Mpixels/sec
glxspheres with optirun
conradfay@conradfay-M14xR2-Ubuntu:~$ optirun glxspheres
Polygons in scene: 62464
Visual ID of window: 0x20
Context is Direct
OpenGL Renderer: GeForce GT 650M/PCIe/SSE2
108.107873 frames/sec - 120.648386 Mpixels/sec
118.694837 frames/sec - 132.463438 Mpixels/sec
118.235315 frames/sec - 131.950611 Mpixels/sec
117.927643 frames/sec - 131.607250 Mpixels/sec
119.457834 frames/sec - 133.314943 Mpixels/sec
and primusrun
conradfay@conradfay-M14xR2-Ubuntu:~$ vblank_mode=0 primusrun glxspheres
Polygons in scene: 62464
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Visual ID of window: 0xbd
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Context is Direct
OpenGL Renderer: GeForce GT 650M/PCIe/SSE2
primus: sorry, not implemented: glXUseXFont
159.367792 frames/sec - 177.854456 Mpixels/sec
160.372980 frames/sec - 178.976246 Mpixels/sec
161.115946 frames/sec - 179.805396 Mpixels/sec
160.865322 frames/sec - 179.525700 Mpixels/sec