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Low Latency Trading Insights

20 Years of glibc: How Your C++ Got Faster Without You Knowing
Your strlen() call completes in 8 cycles.
Jun 14 • Henrique Bucher
Claude Fable 5 Calls "Fill This Buffer Fast" a Cyber Attack
I asked Claude Fable 5, the model Anthropic has been pushing everywhere this month, to write a C++ function that fills a caller-provided buffer as fast…
Jun 12 • Henrique Bucher
Why the LLVM Debugger Has Already Won — And What GDB Developers Won’t Tell You
There’s a conversation that keeps happening in trading shops.
Jun 10 • Henrique Bucher
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C++26 Shipped a SIMD Library Nobody Asked For
Mar 22 • Henrique Bucher
Eviscerated by Rust: Overcoming C++'s 58x Standard Library Handicap
Apr 8 • Henrique Bucher
The PREEMPT_RT Surprise: Why Isolation Alone Isn’t Enough for HFT
May 2 • Henrique Bucher
Building HFT University: Week 1 Report
Mar 23 • Henrique Bucher
Citadel Securities Presents: The C++26 Sales Pitch
May 1 • Henrique Bucher
The C++ Standard Library Has Been Walking Itself Back for Fifteen Years, and the Receipts Are Public
May 23 • Henrique Bucher
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