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The state of SIMD in Rust in 2025: Revision history

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14 November 2025

  • curprev 04:3304:33, 14 November 2025 PC talk contribs 9,877 bytes +9,877 Created page with "What’s SIMD? Why SIMD? Hardware that does arithmetic is cheap, so any CPU made this century has plenty of it. But you still only have one instruction decoding block and it is hard to get it to go fast, so the arithmetic hardware is vastly underutilized. To get around the instruction decoding bottleneck, you can feed the CPU a batch of numbers all at once for a single arithmetic operation like addition. Hence the name: “single instruction, multiple data,” or SIMD fo..."
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