Image generation acceleration using X86_64 SIMD extensions
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The SSE and AVX2 extensions of the x86 instruction set can dramatically improve the speed of a program if you can optimize ot for SIMD instructions.
I made a small test with a fractal generator, which lends itself very well to this kind of optimization. I was impressed by the results: In very little time, thanks to the intel intrisics guide, I have been able to reduce the rendering time by a factor of 6.