glxgears 2004-11-08-trunk jumps with Solaris OpenGL 1.3 implementation and is
pretty much unuseable, the gears move forth and back and are far far away from
rotating smoothly... ;-(

Same problem can be observed with other GL applications on the same kind of
hardware (m64) - on the same machine with Linux+Mesa (indirect rendering) almost
smooth operation can be reached.

Sounds pretty much like a problem in Sun's OpenGL implementation.

glxinfo output:
-- snip --
% (DISPLAY=:0.0 LD_LIBRARY_PATH=$PWD/../../exports/lib/ ./glxinfo)
name of display: :0.0
display: :0  screen: 0
direct rendering: No
server glx vendor string: Sun Microsystems, Inc.
server glx version string: 1.4 Sun OpenGL 1.3 patch 113886-20 for Solaris
server glx extensions:
    GLX_SUN_get_transparent_index, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
    GLX_SGI_make_current_read, GLX_ARB_multisample, GLX_EXT_visual_info
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory, 
    GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, 
    GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_control, 
    GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, 
    GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
GLX extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGI_make_current_read, 
    GLX_SGIX_fbconfig, GLX_SGIX_pbuffer
OpenGL vendor string: Sun Microsystems, Inc.
OpenGL renderer string: SUNWm64 mmap software renderer, VIS
OpenGL version string: 1.2 (1.3 Sun OpenGL 1.3 patch 113886-20 for Solaris)
OpenGL extensions:
    GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_point_parameters, 
    GL_ARB_texture_border_clamp, GL_ARB_texture_cube_map, 
    GL_ARB_texture_env_add, GL_ARB_texture_env_combine, 
    GL_ARB_texture_env_dot3, GL_ARB_transpose_matrix, GL_EXT_abgr, 
    GL_EXT_blend_color, GL_EXT_blend_logic_op, GL_EXT_blend_minmax, 
    GL_EXT_blend_subtract, GL_EXT_draw_range_elements, 
    GL_EXT_multi_draw_arrays, GL_EXT_point_parameters, GL_EXT_polygon_offset, 
    GL_EXT_rescale_normal, GL_EXT_texture3D, GL_EXT_texture_env_add, 
    GL_EXT_texture_env_combine, GL_EXT_texture_filter_anisotropic, 
    GL_HP_convolution_border_modes, GL_SGIS_texture_border_clamp, 
    GL_SGIX_texture_lod_bias, GL_SGIX_texture_scale_bias, 
    GL_SUN_convolution_border_modes, GL_SUN_multi_draw_arrays
glu version: 1.3 Sun OpenGL 1.3 for Solaris
glu extensions:
    GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

   visual  x  bf lv rg d st colorbuffer ax dp st accumbuffer  ms  cav
 id dep cl sp sz l  ci b ro  r  g  b  a bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------
0x23  8 pc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x24  8 sc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x25  8 sg  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x26  8 gs  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x27  8 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x28 24 tc  0 24  0 r  y  .  8  8  8  0  0 32  8 16 16 16 16  1 0 None
-- snip --