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explore using SIMD instructions for parsing #50

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grr opened this issue Jul 2, 2023 · 1 comment
Open

explore using SIMD instructions for parsing #50

grr opened this issue Jul 2, 2023 · 1 comment
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@grr
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grr commented Jul 2, 2023

claims a 6x speed increase:
https://lemire.me/blog/2023/07/01/parsing-time-stamps-faster-with-simd-instructions/
@chansen
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chansen commented Jul 23, 2023 •
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That’s nice usage of SIMD when you only have to interchange one string representation of a time stamp. Comparison is done with strptime() which is a very powerful routine but it’s not known for it’s speed. Time::Moment uses custom routines for parsing that’s much faster than using strptime().

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