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CPU Usage

Started by raiter Oct 29, 2002 at 9:34 AM 2 replies 850+ views

Original Post

Oct 29, 2002 at 9:34 AM

Hi, When running the DMBoids example from the SDK I get CPU Usage of about 3%. When running all other examples (Direct3D examples) the CPU Usage is always 100%. Did anyone notice that, and know the reason? I''m having problems doing some multi threads applications because of that. Thanks.

raiter

Author

raiter

Oct 29, 2002 at 9:59 AM

thanks for the reply.

But I still can''t find the reason why only the DMBoids example takes just 3% CPU Power.

All the examples in the SDK (inluding DMBoids) use the framework CD3DApplication provided by Microsoft.

Darrell L

Oct 29, 2002 at 10:55 AM

It''s the music. Or rather, it''s the call to the BoidMusic::HandleNotifies function in the app''s FrameMove function.

BoidMusic::HandleNotifies has a WaitForSingleObject call in it, which times out after 2 ms.

They''re actually using the "beat" of the music is smooth out the boids frame movement.

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