Daniel Lemire

The cost of a function call https://lemire.me/blog/2026/02/08/the-cost-of-a-function-call/

Converting data to hexadecimal outputs quickly https://lemire.me/blog/2026/02/02/converting-data-to-hexadecimal-outputs-quickly/

Converting floats to strings quickly https://lemire.me/blog/2026/02/01/converting-floats-to-strings-quickly/

Optimizing Python scripts with AI https://lemire.me/blog/2026/01/25/optimizing-python-scripts-with-ai/

A new way to call C from Java: how fast is it? https://lemire.me/blog/2026/01/17/a-new-way-to-call-c-from-java-how-fast-is-it/

How stagnant is CPU technology? https://lemire.me/blog/2026/01/14/how-stagnant-is-cpu-technology/

What I Got Wrong About “Hard Work” in My 20s https://lemire.me/blog/2026/01/08/what-i-got-wrong-about-hard-work-in-my-20s/

A bit of glass and freedom is all you need https://lemire.me/blog/2026/01/07/a-bit-of-glass-and-freedom-is-all-you-need/

Technology is culture https://lemire.me/blog/2026/01/01/technology-is-culture/

The culture war that we won https://lemire.me/blog/2025/12/31/the-culture-war-that-we-won/

By how much does your memory allocator overallocates? https://lemire.me/blog/2025/12/30/by-how-much-does-your-memory-allocator-overallocates/

Freedom from incompetence https://lemire.me/blog/2025/12/29/freedom-from-incompetence/

Don’t be so eager to rewrite your code https://lemire.me/blog/2025/12/28/dont-be-so-eager-to-rewrite-your-code/

Parsing IP addresses quickly (portably, without SIMD magic) https://lemire.me/blog/2025/12/27/parsing-ip-addresses-quickly-portably-without-simd-magic/

Performance trick : optimistic vs pessimistic checks https://lemire.me/blog/2025/12/20/performance-trick-optimistic-vs-pessimistic-checks/

JSON-complete data format and programming languages https://lemire.me/blog/2025/12/20/json-complete-data-format-and-programming-languages/

Multiplying the Shuffle Speed in Go with Batched Shuffling https://lemire.me/blog/2025/12/15/multiplying-the-shuffle-speed-in-go-with-batched-shuffling/

Why speed matters https://lemire.me/blog/2025/12/05/why-speed-matters/

We see something that works, and then we understand it https://lemire.me/blog/2025/12/04/we-see-something-that-works-and-then-we-understand-it/

Why don’t we get more scientific breakthroughs? https://lemire.me/blog/2025/12/03/why-dont-we-get-more-scientific-breakthroughs/

How fast can browsers process base64 data? https://lemire.me/blog/2025/11/29/how-fast-can-browsers-process-base64-data/

Antifragile Programming and Why AI Won’t Steal Your Job https://lemire.me/blog/2025/11/29/antifragile-programming-and-why-ai-wont-steal-your-job/

How good are Chinese CPUs? Benchmarking the Loongson 3A6000 https://lemire.me/blog/2025/11/23/how-good-are-chinese-cpus-benchmarking-the-loongson-3a6000/

AMD vs. Intel: a Unicode benchmark https://lemire.me/blog/2025/11/16/amd-vs-intel-a-unicode-benchmark/

Automated Equality Checks in C++ with Reflection (C++26) https://lemire.me/blog/2025/11/09/automated-equality-checks-in-c-with-reflection-c26/

As smart as a PhD https://lemire.me/blog/2025/10/30/as-smart-as-a-phd/

Flame Graphs in Go https://lemire.me/blog/2025/10/26/flame-graphs-in-go/

Thinking Clearly https://lemire.me/blog/2025/10/26/thinking-clearly/

Speeding up C++ functions with a thread_local cache https://lemire.me/blog/2025/10/19/speeding-up-c-functions-with-a-thread_local-cache/

Research results are cultural artifacts, not public goods https://lemire.me/blog/2025/10/17/research-results-are-cultural-artifacts-not-public-goods/