Slow Polygon Rendering on AMD64 (1.0-8178)
I am experiencing surprisingly slow frame rates when rendering large numbers of polygons (250K - 2M) on an AMD64 system using the 1.0-8178 driver. Volume rendering (3D texture mapping) and image rendering speeds seem fine (fast). Interestingly, 32-bit binaries compiled on a Pentium4 machine are a bit faster than the natively compiled 64-bit versions. This seems to point to the compatibility library used by the current driver. When will a full 64-bit version be released? Are there optimal X config file options that one might suggest that differ from the defaults generated by xconfig?
When I say slow ... I mean almost an order of magnitude too slow!!!
Debian 3.1 with 18.104.22.168 kernel
2 x AMD Opteron 275
1 x NVIDIA 7800 GTX (256MB)
1920 x 1200 display @ 60Hz