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xylcbd/SIMD指令优化Tips

Last active November 6, 2015 06:41
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SIMD指令优化Tips
1，SIMD指令优化的是计算，对于内存复制之类的问题，限制在内存，使用SIMD指令优化很少；
2，SIMD指令也需要耗费时间，不要把若干移位和一两次乘法变成SIMD乘法，性能急剧下降；
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