Etnaviv low FPS

[Juha Paalijärvi]

I use a Buildroot combined system where is Linux kernel 4.8.17 + Mesa3D 
17.2.0 + libdrm 2.4.83. glmark2-es2-rm shows that FPS is approximately 
40. Also example of Qt5.6.2 shows FPS 40.

Shouldn't GPU be able to do better?

# glmark2-es2-drm
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
=======================================================
     glmark2 2014.03
=======================================================
     OpenGL Information
     GL_VENDOR:     etnaviv
     GL_RENDERER:   Vivante GC2000 rev 5108
     GL_VERSION:    OpenGL ES 2.0 Mesa 17.2.0
=======================================================
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[build] use-vbo=false: FPS: 35 FrameTime: 28.571 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[build] use-vbo=true: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[texture] texture-filter=nearest: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[texture] texture-filter=linear: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[texture] texture-filter=mipmap: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[shading] shading=gouraud: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[shading] shading=blinn-phong-inf: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[shading] shading=phong: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[shading] shading=cel: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[bump] bump-render=high-poly: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[bump] bump-render=normals: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[bump] bump-render=height: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
libpng warning: iCCP: known incorrect sRGB profile
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
libpng warning: iCCP: known incorrect sRGB profile
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 39 FrameTime: 
25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[pulsar] light=false:quads=5:texture=false: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
libpng warning: iCCP: known incorrect sRGB profile
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: 
FPS: 38 FrameTime: 26.316 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
libpng warning: iCCP: known incorrect sRGB profile
[desktop] effect=shadow:windows=4: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[buffer] 
columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: 
FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[buffer] 
columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: 
FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[buffer] 
columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: 
FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[ideas] speed=duration: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[jellyfish] <default>: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[terrain] <default>:error: compile failed!
etna_draw_vbo:218: compiled shaders are not okay
error: compile failed!
etna_draw_vbo:218: compiled shaders are not okay
error: compile failed!

......

etna_draw_vbo:218: compiled shaders are not okay
error: compile failed!
etna_draw_vbo:218: compiled shaders are not okay
  FPS: 5 FrameTime: 200.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[shadow] <default>: FPS: 39 FrameTime: 25.641 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[refract] <default>: FPS: 12 FrameTime: 83.333 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 40 FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[function] fragment-complexity=low:fragment-steps=5: FPS: 40 FrameTime: 
25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[function] fragment-complexity=medium:fragment-steps=5: FPS: 40 
FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 40 
FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 40 
FrameTime: 25.000 ms
** Failed to set swap interval. Results may be bounded above by refresh 
rate.
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 40 
FrameTime: 25.000 ms
=======================================================
                                   glmark2 Score: 37
=======================================================


Best regards
Juha