Luhn algorithm using SWAR and SIMD

Bringing up a new piece of hardware -- what can go wrong?

I won free load testing

Issue #212


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Hope you all had a lovely weekend. I feel like there's some very good deep-dives in today's issue. Anyway, here it is.


Today's Sponsor: Mergify

Mergify is the most powerful merge queue tool that offers speculative checks, batch merges, and multiple queueing options. Coordinated with any CI and fully integrated to GitHub. Start automating your Pull Request with Mergify!


Luhn algorithm using SWAR and SIMD

Published: 30 April 2022
Tags: algorithms, c

Chris Wellons implements the algorithm for checking credit card numbers in parallel using "SIMD within a register".


Bringing up a new piece of hardware -- what can go wrong?

Published: 29 April 2022
Tags: fpga, hardware

Dan Gisselquist takes us through the process of testing out prototype concepts for a SONAR system using a FPGA.


What is a Merge Queue?

Published: 18 May 2021
Tags: git, sponsored

Mergify describes what a merge queue is for git, and how it can save you from merging in branches that break your production build.


I won free load testing

Published: 2 May 2022
Tags: infosec, web

Amos dissects a recent DDoS attack on his websites, taking us through the data and statistics for the attack, as well as some of his attempts to mitigate the issues that arose from it.

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Stats (updated daily)

Sent: 2741

Opens: 1262

Clicks: 374

Link Clicks Clicks % Unique Clicks Unique Clicks %
Luhn algorithm using SWAR and SIMD 71 22.47% 73 22.26
Bringing up a new piece of hardware -- what can go wrong? 68 21.52% 72 21.95
What is a Merge Queue? 104 32.91% 107 32.62
I won free load testing 73 23.10% 76 23.17


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