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Pyston-lite: our Python JIT as an extension module
Today we’re very excited to announce Pyston-lite, a JIT for Python that is easily installable as an extension module. We’ve taken the core technology of Pyston and repackaged it so that…
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How to Find and Stop Running Queries on PostgreSQL
Your PostgreSQL server is seizing up, with some naughty queries consuming too many resources or blocking others. Don’t panic! You can stop those problem queries and stabilize your system.
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Dealing with APIs, JSON and databases in org-mode
A practical Org-mode workflow for calling APIs, working with JSON responses, and querying the resulting data with databases and executable blocks.
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High-Throughput, Formal-Methods-Assisted Fuzzing for LLVM
Mutation-based fuzzing is based on the idea that new, bug-triggering inputs can often be created by randomly modifying existing, non-bug-triggering inputs. For example, if we wanted to find bugs in a PDF reader, we could grab a bunch of PDF files off the web, mutate them by flipping a few bits or something, and feed…
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Quirks, Caveats, and Gotchas in SQLite
The SQL language is a "standard". Even so, no two SQL database engines work exactly alike. Every SQL implementation has its own peculiarities and oddities, and SQLite is no exception to this rule.
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Git log is not a changelog
When you maintain a project, publishing new releases can quickly become a chore, so naturally one tries to automate it as much as possible.
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Top-500 NPM package maintainers now require 2FA
Two-Factored Authentication (2FA) is now enforced for maintainers of the top-500 packages, by dependents, on the npm registry. To learn more about configuring 2FA, see Configuring two-factor authentication. To learn…
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Escaping strings faster with AVX-512
When programming, we often have to 'escape' strings. A standard way to do it is to insert the backslash character (\) before some characters such as the double quote. For example, the string my title is "La vie" becomes my title is \"La vie\" A simple routine in C++ to escape a string might look … Continue reading…
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Metaprogramming in Python
How you can use metaprogramming in Python and how it can simplify certain tasks.
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mod_wasm: Run WebAssembly with Apache
mod_wasm is a new module to run WebAssembly (Wasm) modules in Apache httpd
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Strype, a Python frame-based editor
A frame-based Python editor for the BBC micro:bit
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MemLab: An open source framework for finding JavaScript memory leaks
We’ve open-sourced MemLab, a JavaScript memory testing framework that automates memory leak detection. Finding and addressing the root cause of memory leaks is important for delivering a quality us…
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Dynamic types have the potential to be more than "no static types"
They have potential to be more than "no static types", but that hasn't happened.
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From TypeScript to ReScript
Rewriting the Inhyped.com React frontend in ReScript brought a sound type system and easy JS interop, at the cost of a small community.
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You wouldn't download a back end
How in the world do you pirate an API?
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Understanding the Power of Lisp (2020)
Notable programmers describe understanding and coding in LISP as a semi-religious experience. What gives the language this power?
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I wrote a Ruby extension in Zig
Just my website. Some Elixir, some Ruby, some more exotic languages and general thoughts on tech.
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Assembly Nights
Over the last three months, I’ve developed an unusual little nighttime routine: after reading bedtime stories to the kids, I hop into bed and instead of reaching for a fiction book, I’m turning on my 14-year old Asus eeePC 701 (wikipedia.org) miniature laptop and writing x86 assembly language. This is turning out to…
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Failing in Haskell
I’m a Haskell failure, don’t tell anyone! Recently I encountered some dubious error handling code. Not only was it failing, it was failing WRONG 1. This frus
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Math on GitHub: Following Up
About six weeks ago, on May 19, 2022, GitHub released Math support on Markdown. At the time of the release, it received criticism for being ill-designed and buggy. I, too, wrote a blog post about it.
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Using the mold linker for fun and 3x-8x link time speedups
A large C++ codebase meets a new linker: The good, the bad and the performance improvements <a class="more-link" href="https://www.productive-cpp.com/using-the-mold-linker-for-fun-and-3x-8x-link-time-speedups/">... Read More</a>
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Building a High Performance Data Integration Framework in Go
Behind the scenes of building CloudQuery — architectural decisions, engineering challenges, and lessons learned creating the open-source cloud asset inventory.
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Tao of Node – Design, Architecture and Best Practices
One of the main benefits of JavaScript is that it runs both in the browser and the server. As an engineer you need to master a single language and your skills w
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WebAssembly back end merged into GHC
Announcing the GHC WebAssembly backend – present and future
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Worst practices are viral for the wrong reasons (2014)
Perverse incentives surrounding best practices
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New Text and Array Functions for Excel
We are excited to announce fourteen new Excel functions that will allow you to easily manipulate text and arrays.