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Debug runtimes versus Release runtimes

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Absolutely amazing difference in speeds. I just installed the debug runtimes to make sure there were no hidden bugs in my current engine project. The funny part was: For a simple scene that normally displays at 1500fps+ it dropped to 150-250 with debug runtimes installed! That was quite shocking. Even more shocking was the fact that I could tell a huge difference between 1500 and 200 fps.

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The debug runtime does a number of things that can have a dramatic impact on performance, like filling the back buffer with green/pink when using D3DSWAPEFFECT_DISCARD. If it''s spewing a lot of debug messages, that will also slow things down considerably.

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