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optimize utf16 validation on icelake #873

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Merged
lemire merged 1 commit into from
Dec 6, 2025
Merged

optimize utf16 validation on icelake #873

lemire merged 1 commit into from
Dec 6, 2025
+55 −3

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@anonrig
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@anonrig anonrig commented Dec 5, 2025 •
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Local benchmark results

  | Test Pattern         | Haswell (AVX2) | Icelake (Optimized) | Speedup         |
  |----------------------|----------------|---------------------|-----------------|
  | BMP (no surrogates)  | 41.8 GB/s      | 130.3 GB/s          | +212% (3.1x)  |
  | With surrogate pairs | 25.3 GB/s      | 23.5 GB/s           | -7%           |
  | ASCII only           | 43.7 GB/s      | 139.3 GB/s          | +219% (3.2x)  |
  | Sequential values    | 42.3 GB/s      | 139.9 GB/s          | +231% (3.3x) |

@anonrig anonrig requested a review from lemire December 5, 2025 02:46
lemire
lemire approved these changes Dec 6, 2025
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Good!

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lemire commented Dec 6, 2025

Merging.

@lemire lemire merged commit 974ec6a into master Dec 6, 2025
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