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Orasort: 5x faster column-sorting with an expired patent from Oracle

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Re: Orasort: 5x faster column-sorting with an expired patent from Oracle

#13

>A CPU register is naturally 8 bytes in size What does naturally even mean here. How is a 64 byte register's (zmm0) size any less natural?

Or a 7 byte register, if you really want to get freaky.

What about 36 bit registers

Re: Orasort: 5x faster column-sorting with an expired patent from Oracle

#15
> A CPU register is naturally 8 bytes in size, and if Oracle extracts 8 bytes from two strings for comparison, then the comparison requires fewer registers and fewer CPU cycles.

Isn't this just a typical SIMD optimization that tons of projects use?

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