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Serverless Raspberry Pi Cluster with Docker
Learn how to deploy Docker Swarm to create a Raspberry Pi cluster then turn it into a serverless super-computer with the OpenFaaS framework for Docker.
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The latest blog posts to take off on Hacker News. 6,949 posts.
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Latency matters
A month ago, danluu wrote about [terminal and shell performance](https://danluu.com/term-latency/). In that post, he measured the latency between a key being pressed and the corresponding character appearing in the terminal. Across terminals, median latencies ranged between 5 and 45 milliseconds, with the 99.9th…
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Ideal OS: Rebooting the Desktop Operating System
Twitter user ekse has graciously translated this blog to Chinese. Thanks! TL;DR: By the end of this essay I hope to convince you of the following facts. First, that modern desktop operating systems are anything but. They are bloated, slow, and layered with legacy cruft that still functions only thanks to Moore's Law…
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Why PS4 downloads are so slow
PS4 downloads have a reputation of being very slow. I did some digging to find out the root cause, and was surprised.
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X: The First Fully Modular Software Disaster
X-Windows is the Iran-Contra of graphical user interfaces: a tragedy of political compromises, entangled alliances, marketing hype, and just plain greed. X-Windows is to memory as Ronald Reagan was to money. Years of "Voodoo Ergonomics" have resulted in an unprecedented memory deficit of gargantuan proportions…
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Casually removing root files
You’re walking at $HOME, minding your own business. $ whoami > user $ pwd > /home/user But something is bothering your feet. It’s like if a little rock has fallen into your shoe. You take it off, to see what’s going on. $ ls -lah ./left-shoe ---------- 1 root root 4 May 30 13:20 little-rock That’s odd. It’s there, but…
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Migrating 1200 databases from MySQL to Postgres
Once Upon a Time there was a company called Base7Booking that by the beginning of 2016 it was supporting around 1200 databases on MySQL 5...
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The HDFS Juggernaut
There's been much focus on MongoDB, Elastic and Redis in terms of data exposure on the Internet due to their general popularity in the developer community. However, in terms of data volume it turns out that HDFS is the real juggernaut. To give you a better idea here's a quick
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64-bit Firefox is the new default on 64-bit Windows
Users on 64-bit Windows who download Firefox can get our 64-bit version by default. That means you get a more secure version of Firefox, one that also crashes a whole lot less . How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more.
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Let's Remove the Global Interpreter Lock
Hello everyone The Python community has been discussing removing the Global Interpreter Lock for a long time. There have been various atte...
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Thread Pools in Nginx Boost Performance 9x (2015)
Deliver modern applications with NGINX. Explore high-performance load balancing, API gateways, and web server solutions trusted by top global enterprises.
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We need to document macOS
macOS is now largely undocumented. It’s time to do the job ourselves: what about an open collaborative project?
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Negative Result: Reading Kernel Memory from User Mode
I were going to write an introduction about how important negative results can be. I didn’t. I assume you can figure out for yourself why that is and if not you got all the more reason to read this blog post. If you think it’s trivial why my result is negative, you definitely need to read the blog post.
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The world in which IPv6 was a good design
. It took a look longer to read the book than to play this little web game, but you get pretty much the same thing out of the game, so I hig...
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Atom 1.19 – Improved Responsiveness and Memory Usage
We are archiving Atom and all projects under the Atom organization for an official sunset on December 15, 2022.
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Linux Load Averages: Solving the Mystery
Linux load averages explained, including why they include the uninterruptible I/O sleep state.
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Preventing server overload: limit requests being processed
Recently at Bluecore I ran into a familiar situation: during brief periods of overload, all requests to a server were timing out. It was a catastrophic failure, where the server completely stopped serving. We added more capacity to prevent overload, but we also wanted to fix the server. Instead of exploding, it should…
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The structure of a GCC back end
This is part one of a series “ Writing a GCC back end ”. The GCC back end is configured in gcc/config.host and the implementation is p...
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Building account systems
Troy Hunt recently published a blog post titled “Authentication guidance for the modern era”. It has a big pile of solid advice on what…
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The slow currentTimeMillis()
Today we’ll look at one of the most basic and the most often used methods from the Java library: System.currentTimeMillis() .
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Introducing the Keybase filesystem
Browse technical documentation on the public-key cryptography that powers Keybase. Learn how Keybase Chats, Files, Teams, and Git are secured.
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Microsoft didn’t sandbox Windows Defender, so I did
Microsoft exposed their users to a lot of risks when they released Windows Defender without a sandbox. This surprised me. Sandboxing is one of the most effective security-hardening techniques. Why did Microsoft sandbox other high-value attack surfaces such as the JIT code in Microsoft Edge, but leave Windows Defender…
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Docker vs. Kubernetes vs. Mesos
Tips from experts, thoughts from leaders, news from the front line. Join the conversation beyond hyperconverged infrastructure to the enterprise cloud.