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How to create a 1M record table with a single query
With recursive CTE and randomized data.
New
The latest blog posts to take off on Hacker News. 14,541 posts.
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Crazy fast build times, or when 10 seconds starts to make you nervous (2012)
Firstly this is not just my effort but my team and organisation. Secondly the usual rules apply, this is expert advise and what works for me will very probably cause your whole production stack to blow up and kill people. Lastly this is long so skip to the bit you care about or come along and chat at QCon London 2012
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ZGC – What's new in JDK 16
JDK 16 is out, and as usual, each new release comes with a bunch of new features, enhancements and bug fixes. ZGC received 46 enhancements and 25 bug fixes. Here I’ll cover a few of the more interesting enhancements.
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Live previews with Rails and Stimulus 2
Who wouldn’t want a live preview for writing their great content? If you happen to be running Rails with Hotwire, it’s surprisingly easy with a small Stimulus controller.
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Automatic Video Editing
Amongst the many consequences of COVID-19 has been the suspension of in-person talks: suddenly, people like me have had to think about how to produce prerecorded videos. In this article I’m going to explain what I’ve come to understand about video recording and the “automatic video editing” technique I’ve used for…
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Scala projects are difficult to maintain
Scala is a powerful programming language that can make certain small teams hyper-productive.
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Building My Own Yahoo Pipes
Pipes has been dead since 2015 or so, but I used it for a long time and it was essential to my daily news intake, so I’ve been building a personal ...
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Emacs is the 2D Command-line Interface
One of the most popular arguments against Emacs is that it is “a great operating system, lacking only a decent editor”. The promotion of the idea of “Living in Emacs” by some of the hardcore Emacs users only make this argument more compelling. At the first glance, using a single program for “everything” does seem to…
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A working D compiler on OpenBSD
I got GDC , the GNU D Compiler, working on OpenBSD . Supporting D has been a very long time coming. Here's the story of how we got here and where we need to go next.
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Cranelift, Part 3: Correctness in Register Allocation
This post is the last in a three-part series about Cranelift . In the first post , I covered overall context and the instruction-selection problem; in the second post , I took a deep dive into compiler performance via careful algorithmic design.
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Stuff Your Logs
Paul Khuong's personal blog. Some Lisp, some optimisation, mathematical or computer.
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Writing Small CLI Programs in Common Lisp
I write a lot of command-line programs. For tiny programs I usually go with the typical UNIX approach: throw together a half-assed shell script and move on. For large programs I make a full Common Lisp project, with an ASDF system definition and such. But there's a middle ground of small ish programs that don't…
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Interfaces and Protocols in Python
Comparing zope.interface and typing.Protocol.
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The Modern Java Platform – 2021 Edition
Many developers were burned by the overly complex world of Java back in the early 2000s. The Gang of Four patterns and middleware / J2EE / Java EE led to…
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How C++ Resolves a Function Call
C is a simple language. You’re only allowed to have one function with each name. C++, on the other hand, gives you much more flexibility: You can have multiple functions …
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Euler's Fizzbuzz (2020)
FizzBuzz is a common coding problem asked in technical screenings or interviews. It goes something like this:
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Performance comparison: counting words in Python, Go, C++, C, Awk, Forth, Rust
Performance comparison of counting and sorting word frequencies in various languages (Python, Go, C++, C, AWK, Forth, and Rust)
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Sd: My Script Directory
does your ~/bin spark joy?
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Reprojecting the Perseverance landing footage onto satellite imagery
The landing of the Mars 2020 Perseverance rover last month amazed the world. The stunning footage of the descent shows each stage of the sequence. If you have not seen it already you can watch it here .
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Why are most climate models in Fortran?
An examination of the software that powers modern Climate simulations.