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by vardump
4072 days ago
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I think CAS is a pretty slow operation even without a LOCK prefix. You probably don't want to use it for purposes other than intercore synchronization. If you have a lot of data to process, using SSE/AVX is a huge win. Conditional masking and min/max instructions for example. SIMD is a huge win especially in sorting, you can have 10-40x speed-up by using a bitonic sorting network. |
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