3310000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 16x16) Test Type ReadPixelsTest GLperf Script File Name ReadPixl.ndx 0.3 Print Mode Delta True Print Mode Delta from Default State False Print Mode Microseconds False Print Mode Pixels Per Second True GLperf Version 3.1.2 Execute Mode Immediate Number of Objects 1 Vertices Unrolled in Inner Loop 1 Function Pointers Used in Inner Loop Off Modulo 4096 of Data Alignment 0 Month 5 Day 1 Year 1998 Host pptemp9 Operating System IRIX64 Operating System Version 6.4 02121744 Host Vendor SGI Host Model IP30 Host CPU 225 MHz R10000 Host CPU Count 1 Host Memory Size 384 Host Primary Cache Size 32/32 (D/I) Host Secondary Cache Size 1024 (D+I) Window System X11R5 Driver Version N/A OpenGL Vendor SGI OpenGL Version 1.1 Irix 6.4 OpenGL Extensions GL_EXT_abgr GL_EXT_blend_color GL_EXT_blend_logic_op GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_convolution GL_EXT_copy_texture GL_EXT_histogram GL_EXT_packed_pixels GL_EXT_polygon_offset GL_EXT_subtexture GL_EXT_texture GL_EXT_texture3D GL_EXT_texture_object GL_EXT_vertex_array GL_SGI_color_matrix GL_SGI_color_table GL_SGI_texture_color_table GL_SGIS_texture_filter4 GL_SGIS_detail_texture GL_SGIS_texture_border_clamp GL_SGIS_texture_select GL_SGIS_texture_lod GL_SGIX_pixel_texture GL_SGIX_texture_multi_buffer OpenGL Renderer IMPACT/1/1/4 OpenGL Client Vendor SGI OpenGL Client Version 1.2 Irix 6.4 OpenGL Client Extensions GLX_EXT_import_context GLX_EXT_visual_info GLX_EXT_visual_rating GLX_SGI_make_current_read GLX_SGI_swap_control GLX_SGI_video_sync GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_swap_barrier GLX_SGIX_swap_group GLX_SGIX_video_resize GLX_SGIX_video_source GLU Version 1.2 Irix 6.4 GLU Extensions GLU_EXT_object_space_tess GLU_EXT_nurbs_tessellator Direct Rendering True Double Buffer True Stereo False RGBA False Color Index Size 12 Red Size -1 Green Size -1 Blue Size -1 Alpha Size -1 Accum Red Size -1 Accum Green Size -1 Accum Blue Size -1 Accum Alpha Size -1 Depth Size 24 Stencil Size 8 Auxiliary Buffer Count 0 Multisample Buffer Count 0 Multisamples Per Pixel 0 Frame BufferLevel 0 Visual ID 0x27 Visual Class PseudoColor Pixel Format 0x27 Window Width 600 Window Height 600 Screen Width 1280 Screen Height 1024 Display :0.0 OpenGL Server Vendor SGI OpenGL Server Version 1.2 Irix 6.4 OpenGL Server Extensions 1.2 Irix 6.4 GLX Server Version 1.1 GLX Server Extensions GLX_EXT_import_context GLX_EXT_visual_info GLX_EXT_visual_rating GLX_SGI_make_current_read GLX_SGI_swap_control GLX_SGI_video_sync GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_swap_barrier GLX_SGIX_swap_group GLX_SGIX_video_resize GLX_SGIX_video_source Screen Number 0 Shared Memory Connection False PixelMap Color False PixelMap Stencil False PixelTransfer Red Scale Factor 1.000000 PixelTransfer Red Bias Factor 0.000000 PixelTransfer Green Scale Factor 1.000000 PixelTransfer Green Bias Factor 0.000000 PixelTransfer Blue Scale Factor 1.000000 PixelTransfer Blue Bias Factor 0.000000 PixelTransfer Alpha Scale Factor 1.000000 PixelTransfer Alpha Bias Factor 0.000000 PixelTransfer Index Shift 0 PixelTransfer Index Offset 0 PixelTransfer Depth Scale Factor 1.000000 PixelTransfer Depth Bias Factor 0.000000 PixelMap R to R Size 1 PixelMap G to G Size 1 PixelMap B to B Size 1 PixelMap A to A Size 1 PixelMap I to R Size 1 PixelMap I to G Size 1 PixelMap I to B Size 1 PixelMap I to A Size 1 PixelMap I to I Size 1 PixelMap S to S Size 1 Color Table Enabled False Color Table Width 256 Color Table Internal Format GL_RGBA8_EXT Convolution Target None Convolution Internal Format GL_RGBA Convolution Width 3 Convolution Height 3 Convolution Red Scale Factor 1.000000 Convolution Red Bias Factor 0.000000 Convolution Green Scale Factor 1.000000 Convolution Green Bias Factor 0.000000 Convolution Blue Scale Factor 1.000000 Convolution Blue Bias Factor 0.000000 Convolution Alpha Scale Factor 1.000000 Convolution Alpha Bias Factor 0.000000 Post Convolution Color Table Enabled False Post Convolution Color Table Width 256 Post Convolution Color Table Internal Format GL_RGBA8_EXT Color Matrix Red 0 1.000000 Color Matrix Red 1 0.000000 Color Matrix Red 2 0.000000 Color Matrix Red 3 0.000000 Color Matrix Green 0 0.000000 Color Matrix Green 1 1.000000 Color Matrix Green 2 0.000000 Color Matrix Green 3 0.000000 Color Matrix Blue 0 0.000000 Color Matrix Blue 1 0.000000 Color Matrix Blue 2 1.000000 Color Matrix Blue 3 0.000000 Color Matrix Alpha 0 0.000000 Color Matrix Alpha 1 0.000000 Color Matrix Alpha 2 0.000000 Color Matrix Alpha 3 1.000000 Color Matrix Red Scale Factor 1.000000 Color Matrix Red Bias Factor 0.000000 Color Matrix Green Scale Factor 1.000000 Color Matrix Green Bias Factor 0.000000 Color Matrix Blue Scale Factor 1.000000 Color Matrix Blue Bias Factor 0.000000 Color Matrix Alpha Scale Factor 1.000000 Color Matrix Alpha Bias Factor 0.000000 Post Color Matrix Color Table Enabled False Post Color Matrix Color Table Width 256 Post Color Matrix Color Table Internal Format GL_RGBA8_EXT Histogram Enabled False Histogram Width 256 Histogram Internal Format GL_RGBA8_EXT Histogram Sink False Minmax Enabled False Minmax Internal Format GL_RGBA8_EXT Minmax Sink False Image Format GL_COLOR_INDEX Image Type GL_UNSIGNED_BYTE Image Alignment 4 Image Swap Bytes False Image LSB First False Image Width 16 Image Height 16 Width of ReadPixels 16 Height of ReadPixels 16 Read Buffer GL_FRONT Order in which Images/Bitmaps/Text are Read Spaced 11500000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 32x32) Image Width 32 Image Height 32 Width of ReadPixels 32 Height of ReadPixels 32 25200000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 64x64) Image Width 64 Image Height 64 Width of ReadPixels 64 Height of ReadPixels 64 48600000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 128x128) Image Width 128 Image Height 128 Width of ReadPixels 128 Height of ReadPixels 128 63700000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 256x256) Image Width 256 Image Height 256 Width of ReadPixels 256 Height of ReadPixels 256 71200000 pixels per second with ReadPixels -- ReadPixels (Immediate, color index, ubyte, 512x512) Image Width 512 Image Height 512 Width of ReadPixels 512 Height of ReadPixels 512