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Old 05-13-03, 06:45 AM   #1
epoh
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Join Date: May 2003
Posts: 4
Default Serious bug in NVidia drivers (vblank)

In our company we are working on a simulation project in which we have several threads competing for the CPU. The main thread draws with OpenGL the scene, and other threads do I/O and some processing.

The bug we have found is that the main thread uses the 100% of the CPU even if we synchronize with vertical retrace. This is a very serious bug for our sort of projects, because the other threads need the idle time of the main thread to do their work :'( As a result, our application is running much slower than it could run if the driver waited until the vertical retrace.

If it will late too much to fix this bug, is there any workaround that we can do in the meanwhile, please?

Thanks.
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