Results 1 to 3 of 3

Thread: Very Low FPS on Fedora 9 and Minefield

  1. #1
    Junior Member
    Join Date
    Aug 2010
    Posts
    1

    Very Low FPS on Fedora 9 and Minefield

    When viewing any WebGL demo in MineField the performance quickly degrades
    to only 2 FPS. I am using hardware rendering with an NVidia 9800GT card.
    If I hide the demo window with another window the FPS improves dramatically.
    Any help in improving performance would be appreciated.

    Below I have added:
    1) output from top when I run with the demo window visible
    2) software and system info

    Top Output:
    -----------

    Code :
    top - 15:55:46 up 9 days, 13:15,  3 users,  load average: 2.42, 2.40, 1.60
    Tasks: 172 total,   3 running, 169 sleeping,   0 stopped,   0 zombie
    Cpu(s): 53.7%us,  3.9%sy,  0.0%ni, 41.4%id,  0.0%wa,  0.5%hi,  0.5%si,  0.0%st
    Mem:   2074628k total,  2006360k used,    68268k free,   134312k buffers
    Swap:  2031608k total,   270952k used,  1760656k free,   272148k cached
     
    PID USER       PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
     2101  root     20   0  763m 425m  12m R 93.1 21.0 502:31.55 Xorg               
    15774 joeUser  20   0  590m 139m  20m R 12.9  6.9  29:08.37 plugin-containe    
    15735 joeUser  20   0  827m 440m  59m S  7.9 21.7 200:22.08 firefox-bin        
     2335  joeUser  20   0  159m  70m  13m S  5.0  3.5  99:58.11 nautilus



    Software and System Info:
    -------------------------

    Minefield: nightly build from Aug 23rd 2010

    OS: Fedora 9

    glxinfo output:

    Code :
    name of display: :0.0
    display: :0  screen: 0
    direct rendering: Yes
    server glx vendor string: NVIDIA Corporation
    server glx version string: 1.4
    server glx extensions:
        GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, 
        GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control, 
        GLX_EXT_texture_from_pixmap, GLX_ARB_multisample, GLX_NV_float_buffer, 
        GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
    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_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 version: 1.3
    GLX extensions:
        GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, 
        GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control, 
        GLX_EXT_texture_from_pixmap, GLX_ARB_multisample, GLX_NV_float_buffer, 
        GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB, 
        GLX_ARB_get_proc_address
    OpenGL vendor string: NVIDIA Corporation
    OpenGL renderer string: unknown board/PCI/SSE2
    OpenGL version string: 2.1.2 NVIDIA 173.14.15
    OpenGL extensions:
     ...

  2. #2
    Senior Member
    Join Date
    May 2010
    Posts
    207

    Re: Very Low FPS on Fedora 9 and Minefield

    The problem seems to be that WebGL under Linux doesn't yet use the hardware to do compositing. Even a blank screen seems to take a crazy amount of time. On Windows, the GPU does compositing and it takes a negligable amount of time.

    On almost identical hardware - I get 26Hz in Windows and 4Hz in Linux...with the same nightly build of Firefox.

    Hopefully this will get fixed sometime soon - it's really annoying!

    You can verify this yourself by dramatically shrinking the size of the canvas. The frame rate in my application is almost exactly proportional to the canvas area - and is almost independent of the number of times I write to the canvas or to the number of draw calls I make - or the number of polygons I draw.

    -- Steve

  3. #3
    Junior Member
    Join Date
    Jun 2011
    Posts
    1

    Re: Very Low FPS on Fedora 9 and Minefield

    How do you make a D-link wireless card work under Fedora 6? I have the CD with the drivers but they are for Windows not for linux. How can Fedora 6 recognize my wireless card. See that's what i hate with linux , I wish things could be easy. In 2007 Linux can't recognize a wireless card.

Similar Threads

  1. Low fps even on empty canvas.
    By sphere in forum WebGL - General
    Replies: 34
    Last Post: 01-29-2011, 11:33 AM
  2. Low FPS
    By ninjanesto in forum OpenGL ES general technical discussions
    Replies: 1
    Last Post: 04-21-2006, 01:52 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •