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| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 316 | Founded | 4 years ago | Last Issue | 36 hours ago |
| Active | |||||
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lucisqr.substack.comLatest Issues
Your AVX-512 GCD Isn't Slow. Your Benchmark Is.
A reader sent me a small experiment. He had written a binary GCD that computes eight uint64_t greatest common divisors at once, packed into one __m512i, and benchmarked it against calling the scalar GCD eight times. The expectation was some...
The Most Useful Pointer the STL Never Shipped
Lay the three side by side: unique_ptr is eight bytes and cannot share. shared_ptr shares and charges you sixteen bytes, a second allocation, a virtual control block, and a mandated atomic on every copy, which is why I called it armed and d...
Armed and dangerous: std::shared_ptr<T> considered harmful
A few years ago I was looking at some performance graphs and I got surprised to see that I got a huge performance hit when replaced my homegrown smart pointer with the STL std::shared_ptr and kept wondering why since these should be mostly...
Better Descriptive Statistics for Low-Latency Profiling
Many C++ developers have a pretty good idea about measuring micro-events - but if they don’t, we wrote another article just about that a few months ago: Microbenchmarking is tricky! But even when they know how to micro-benchmark, they often...
BOLT After PGO: A 4% Win That Used to Be a 30% Loss!
If you liked it, here is another one! This article deals with how optimizations heavily depend on the hardware assets being available at compile time.
BOLT After PGO: A 4% Win That Used to Be a 30% Loss!
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I earned MSc, PhD in Structural Dynamics, with emphasis in supercomputing. Switched to high frequency trading at Citadel in early 2000s. I work mostly with trading applications. LightQR Suite: www.vitorian.com
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