Dear Greg, Thank you for the information. Copied below a part of the glxinfo command and OPENGL renderer string is given as Software Rasterizer. [cbala@ramana ~]$ glxinfo name of display: :0.0 display: :0 screen: 0 direct rendering: No (If you want to find out why, try setting LIBGL_DEBUG=verbose) server glx vendor string: SGI server glx version string: 1.2 server glx extensions: GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe, GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer client glx vendor string: NVIDIA Corporation client glx version string: 1.4 client glx extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync, GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_swap_control, GLX_ARB_create_context, GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float, GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB, GLX_NV_present_video, GLX_NV_multisample_coverage GLX version: 1.2 GLX extensions: GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_SGIX_fbconfig, GLX_ARB_get_proc_address OpenGL vendor string: Mesa Project OpenGL renderer string: Software Rasterizer OpenGL version string: 1.4 (2.1 Mesa 7.3-devel) Cheers, Bala On Thu, May 7, 2009 at 8:44 PM, Greg Couch <gregc@cgl.ucsf.edu> wrote:
Looking at your chimera benchmark scores and at the scores on the web page, http://socrates2.cgl.ucsf.edu/trac/chimera/wiki/benchmarks, it looks like you don't have the NVidia graphics driver installed. And that would make a *huge* difference. To double-check, run the glxinfo command and look at the "OpenGL renderer string:" line, it should have NVIDIA in it instead of Mesa. To get the NVidia drivers, go to < http://www.nvidia.com/Download/index.aspx>.
- Greg
On Thu, 7 May 2009, Bala subramanian wrote:
Dear Greg,
You are right. Previously it was normal but now it is slow. I havent updated the kernel. I checked and noticed that i dnt have any memory intensive background jobs also.
I did benchmarks with two chimera versions 1.3 (attached file chim_test) and chimera 1.4 (attached chim_test1). My graphics card is nVIDIA GETFORCE 9300MG, VRAM: 256 MB. I dnt know how to compare and judge what is going wrong. I wud appreciate your help on the same.
Thanks, Bala
So it was formerly fast on the same computer? This could happen on a Linux
computer if you updated the kernel and forgot to reinstall the graphics driver (from ATI or NVidia, the open source 3D drivers still need work, but are improving). Another possibility, on all operatings sytems, is that there is a background process that is using a lot of CPU or memory, so chimera doesn't have the resources it used to.
If you just want to check the graphics performance, then you can use the Benchmark tool in Tool / Utilities to guage the current performance. And then you can compare to the reported scores to see if your graphics performance is reasonable (the Show button in the Benchmark tool brings up the web page).
- Greg