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Python’s Weak Performance Matters
Here is an argument I used to make, but now disagree with: Just to add another perspective, I find many “performance” problems in the real world can often be attributed to factors other…
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Concurrency I can finally understand and write correctly
I wrote my Advent of Code in D. The programming language. It was the first time I used D in earnest every day for something substantial. It was fun and I learned things along the way, such as easy metaprogramming, concurrency I could write correctly, and functional programming that doesn’t feel like I have one arm…
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Why I never finish my Haskell programs
From the highly eclectic blog of Mark Dominus
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Interactive Go programming with Jupyter
Introduction of a new feature-rich golang Jupyter kernel
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A single-page app is almost always worse than a multi-page app
Single-page apps are all the rage nowadays. Many praise their vague technical benefits while ignoring tremendous development costs.
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Post-REST
More or less all the big APIs are RESTful these days. Yeah, you can quibble about what “REST” means (and I will, a bit) but the assertion is broadly true. Is it going to stay that way forever? Seems unlikely. So, what’s next?
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My Own Car System, Rear Camera, Offline Maps and Routing with Go
This is my journey building an open source car system with Go & Qt, rear camera, live OpenGL map … Cross compilation In Part I, I had to patch qtmultimedia for the camera to work, but Qt compilation is resource hungry, same goes for the osrm compilation, the memory of the Raspberry Pi is too small. I had to to set up…
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Unix Syscalls
On UNIX-like operating systems, userland processes invoke kernel procedures using the "syscall" feature. Each syscall is identified by a "syscall number" and has a short list of parameters, which both can vary between operating systems, hardware platforms, and configuration options.
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Pipelines – a guided tour of the new IO API in .NET
Pipelines - a guided tour of the new IO API in .NET, part 1 (part 2 here) About two years ago I blogged about an upcoming experimental IO ...
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Rust pointers for C programmers
Josef “Jeff” Sipek's Blahg
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Go hits the concurrency nail on the head
More than thirteen years have passed since Herb Sutter declared that the free lunch is over and concurrency is upon us , and yet it's hard to claim that most mainstream languages have made a strong shift towards concurrent modes of programming. We have to admit that concurrency is just hard , and the struggles of some…
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100 days with Rust: a series of brick walls
A few thoughts on Rust after a few months of regular use.
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Rules of optimization
Rules of optimization: 1) Design for performance from day 1 2) Profile often 3) Be vigilant on performance regressions 4) Understand the data 5) Understand the HW 6) Help the compiler 7) Verify your assumptions Performance is everyone's responsibility https://t.co/CwwJffnHGz
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Why you can have millions of goroutines but only thousands of Java threads
Many seasoned engineers working in JVM based languages have seen errors like this: [error] (run-main-0) java.lang.OutOfMemoryError: unable to create native thread: [error] java.lang.OutOfMemoryError: unable to create native thread: [error] at java.base/java.lang.Thread.start0(Native Method) [error] at…
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Face recognition in images and video with Python
Learn how to perform face recognition using OpenCV, Python, and dlib by applying deep learning for highly accurate facial recognition.
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Lessons learned while developing Age of Empires 1 Definitive Edition
In late 2016 I began helping Forgotten Empires on Age 1 DE , a UWP app shipping in the Windows Store on Feb 20th. I only helped occasionall...
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Elm 0.19 Broke Us
Elm 0.19 was released yesterday. There were a significant number of breaking changes at every level:...
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Systemd is bad parsing
Systemd has a remotely exploitable bug in its DHCPv6 client . That means anybody on the local network can send you a packet and take control...
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JS things I didn’t know existed
I was reading through the MDN docs the other day and found these JS features and APIs I never knew existed. So here is a short list of those things, useful or not - learning JS seemingly never ends. Label Statements [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/
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Escaping the SPA rabbit hole with modern Rails
The SPA path is dark and full of terrors. You can bravely fight those… or choose a different path that takes you to a similar destination…
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Pipenv: promises a lot, delivers very little
Pipenv is a Python packaging tool that does one thing reasonably well — application dependency management. However, it is also plagued by issues, limitations and a break-neck development process. In the past, Pipenv’s promotional material was highly misleading as to its purpose and backers.
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Why you should learn F#
Programming, Coffee and Indie Hacking
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C Portability Lessons from Weird Machines
In this article we’ll go on a journey from 4-bit microcontrollers to room-sized mainframes and learn how porting C to each of them helped people separate the essence of the language from the environment of its birth. I’ve found technical manuals and videos for this article to help bring each computer to life.
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Pointers Are More Abstract Than You Might Expect in C
A pointer references a location in memory and dereferencing a pointer refers to the lookup of the value of the memory location the pointer references. The value of a pointer is a memory address. The C standard does not define the representation of a memory address. This is crucial since not every architecture makes…