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Old 02-07-06, 10:22 AM   #1
seanm
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Join Date: Feb 2006
Posts: 2
Exclamation Slow Polygon Rendering on AMD64 (1.0-8178)

Hi All,

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!!!

System configuration:
Debian 3.1 with 2.6.15.1 kernel
2 x AMD Opteron 275
1 x NVIDIA 7800 GTX (256MB)
4GB RAM
1920 x 1200 display @ 60Hz

Thanks,
Sean
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