The latest blog posts to take off on Hacker News. 2,330 posts.
Many software engineers use database indexes every day, but few of us really understand how they work. In this post I’ll explain: How indexing works in Postgres using B-Trees What B-Trees are Why they are a good fit for this problem Indexes in Postgres Postgres actually offers 4 different kinds of indexes for…
A cheatsheet for moving efficiently in the CLI!
Today, fast number crunching means parallel programs that run on Graphical Processing Units (GPUs). Thanks to the recent highly publicized deep learning and ...
A guide to self-hosting your email on FreeBSD using Postfix, Dovecot, Rspamd, and LDAP.
Despite my woeful knowledge of networking, I run my own DNS servers on my own websites run from home.
For his 1965 composition “It's Gonna Rain”, Steve Reich designed a generative mechanical system.
Last week I jokingly said that POPL papers must pass an ‘intellectual intimidation’ threshold in order to be accepted. That’s not true of course, but it is the case that programming languages paper…
Over the past week the station has been dedicated to an S-band scan looking for new targets and refreshing the frequency list, triggered by the recent launch of the mysterious ZUMA mission. This t…
Using Self-Organizing Maps to solve the Traveling Salesman Problem The Traveling Salesman Problem is a well known challenge in Computer Science: it consists on finding the shortest route possible that traverses all cities in a given map only once. Although its simple explanation, this problem is, indeed, NP-Complete…
Date: 2018-01-25 Git: https://gitlab.com/mort96/blog/blob/published/content/00000-home/00010-obscure-c-features.md
Jacobite – which is apparently still a real magazine and not a one-off gag making fun of Jacobin – summarizes their article Under-Theorizing Government as “You’ll never hear…
2021 update: Browsers now implicitly set rel=noopener for any target=_blank link, following a spec change . If the demo on this page no longer seems scary, congratulations — you’re using a modern browser!
This pattern is pretty common if you are interacting with Operating System APIs . Another example .
Blog about anti-virus software vulnerabilities.
Why I switched to Windows 10 from macOS and built a water-cooled and overclocked 5.2GHz 6-core PC for photo editing with Adobe Lightroom Classic CC.
I’ve been working on building a compacting garbage collector in Ruby for a while now, and one of the biggest hurdles for implementing a compacting GC is updating references. For example, if Object A points to Object B, but the compacting GC moves Object B, how do we make sure that Object A points to the new location?…
The road to a solid-state switch was a long and complex one. It began with the discovery that certain materials behaved oddly with respect to electricity – differently than any existing theor…
