Daniel Lemire

@lemire

Software performance expert. Ranked in the top 2% of scientists globally (Stanford/Elsevier 2025) and among GitHub's top 1000 developers. Father, husband.

Montreal, Quebec

lemire.me/en/

Joined November 2007

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Daniel Lemire
@lemire
Aug 19
Article
Parsing IP addresses in C# at crazy speeds
We are all familiar with IP addresses such as 192.168.0.1. They are typically written as four numbers in the range 0 to 255 inclusive, separated by dots. In C#, you can parse them with the standard...
Daniel Lemire
@lemire
3h
⭐ Pro tip: Using AI for programming is great... bu…
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Daniel Lemire
@lemire
15h
Vernor Vinge coined the term 'singularity' to refer to an incomprehensible regime change in technology. Here is what he wrote in 1993. « I believe that the creation of greater than human intelligence will occur during the next thirty years. (I'll be surprised if this event
Daniel Lemire
@lemire
Aug 20
I'd like to share with you this business proposal.
Daniel Lemire
@lemire
Aug 20
Currently, in my view, the best instruction set for data parallelism (SIMD) today is AVX-512. It is available on all x64 (AMD/Intel) server processors, and all AMD processors, and, by the end of the year, on all new Intel processors. I consider that ARM processors are behind, as