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Testing on production
It might seem like a click baity title but it’s not. Let me explain.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,733 posts.
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Predictive Debugging: A Game-Changing Look into the Future
With the introduction of debugging tools, software developers were empowered to interactively investigate the control flow of software programs to find bugs in live environments. At JetBrains, we've a
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Versioning data in Postgres? Testing a Git like approach
KQBD Vip - trực tiếp kết quả bóng đá hôm nay cập nhật trực tuyến theo Nano giây, kết quả đêm qua & rạng sáng nay từ 2.000+ giải đấu toàn thế giới.
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Why Htmx Does Not Have a Build Step
In this essay, Alexander Petros explores the reasons why the htmx JavaScript library does not include a build step, detailing the benefits of its simple, dependency-free structure. He highlights the longevity of plain JavaScript, the improved debugging experience, enforced code clarity, and the tradeoffs of avoiding…
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Do large language models need all those layers?
Finding that 70% of attention heads and 20% of feed-forward networks can be excised with minimal effect on in-context learning suggests that large language models are undertrained.
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Advice for Operating a Public-Facing API
I've been operating Pushover 's public-facing API for over a decade now and I thought I'd pass on some advice for those creating a new API.
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Go Testing by Example [video]
I opened GopherCon Australia in early November with the talk “Go Testing By Example”. Being the first talk, there were some A/V issues, so I re-recorded it at home and have posted it here:
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Functional Programming – How and Why
Let's start with an example. In Advent of Code 2022 day 1 we get groups of numbers as input like: 1000 2000 3000 4000 5000 6000 7000 8000 ...
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GPT-3 will ignore tools when it disagrees with them
Augmenting GPT-3 with tools is a popular technique right now. But is GPT-3 really using them?
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Localization Failure: Temperature Is Hard
The Guardian is one of my favorite news sources. I’m a subscriber (support news organizations!) and I read it daily. But it is not immune to errors, as this headline shows:68 °F above average is a …
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SQL reserved words – An empirical list
These words cause problems as table or column name
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CTEs as lookup tables
How to use a CTE instead of complicated CASE expressions
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Uber migrates microservices to multi-cloud platform running Kubernetes and Mesos
Each and every week, Uber’s 4,500 stateless microservices are deployed more than 100,000 times by 4,000 engineers and many autonomous systems. These services are developed, deployed, and operated by hundreds of individual teams working independently across the globe. The services vary in size, shape, and…
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Leveling up in job interviews for software engineers (2022)
How to stand out in job interviews as an engineer.
945
My Node.js is a bit Rusty
Replacing an internal Node.js module with a native Rust module made a x25 perf boost. Let’s understand why.
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My experience crafting an interpreter with Rust (2021)
Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I needed more to really understand the language. I wanted to work on a small project to get some hands-on experience, but…
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Unpacking Elixir: Observability
Elixir supports the usual supects of observability. Open Telemetry (OTel), log handlers, capturing metrics. And it does it well. This post will mostly focus on the observability you have on the BEAM that is either incredibly rare to see elsewhere or possibly entirely unique.
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Displaying My Washing Machine's Remaining Time with Curl, Jq, and Pizauth
A couple of months ago our washing machine produced a considerable quantity of smoke when I opened its door, which I interpreted as a suggestion that a replacement was needed. After rummaging around the internet for advice, a couple of days later a new Miele washing machine took its place in our home.
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Ruby 3.3's YJIT Runs Shopify's Production Code 15% Faster
Ruby 3.2 YJIT has optimized the production workloads of Shopify and other companies. We encourage you to enable YJIT in production. Once Ruby 3.3 is released, it should make your application even faster.
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Ban 1+N in Django
I always thought of 1+N as a thing that you just keep in your head, catch on code reviews or via performance regressions. This worked well for a long …
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Elixir at Ramp
Discover the latest in finance automation that increases the lifespan of businesses from the Ramp team
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Resilience requires helping each other out
A common failure mode in complex systems is that some part of the system hits a limit and falls over. In the software world, we call this phenomenon resource exhaustion, and a classic example of th…
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Elixir for Ruby developers: the three most important differences
Learning Elixir when you already know Ruby? Here are the three most important things you need to understand
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Compiling Rust for .NET, using only tea and stubbornness
In this article, I describe my journey creating a barely functional rust backend enabling compilation for the .NET runtime (Usually used to run C# and F#).
958
Using RP2040 PIO to drive a poorly-designed displa
Dmitry.GR: Driving a poorly-designed display and touch board using no CPU at all
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Never trust a programmer who says they know C++
I’ve been in an interviewing mindset for awhile and I’ve come to realize something important about C++ in particular. C++ is a “two peak” language. That is to say C++ is the only language I know of where two very different sets of programmers consider themselves well versed in the language. Let me show you in fake…
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Bun, JavaScript, and TCO
Bun is a JavaScript runtime that just released version 1.0! Now you have three choices for running JavaScript outside of the browser: Node, Deno, and Bun. One of Bun's selling points is speed! It makes some interesting decisions to achieve this.