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FreeBSD Jails Containers
FreeBSD networking and containers (Jails) stacks are very mature and provide lots of useful features … yet for some reason these features are not properly advertised by the FreeBSD project &#…
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,945 posts.
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WebVM: WASM virtual machine in browser with networking via Tailscale
WebVM, our virtual Linux environment running fully client-side in the browser, now supports networking via Tailscale.
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PyPy for low-latency systems
PyPy for low-latency systems Recently I have merged the gc-disable branch, introducing a couple of features which are useful when you need...
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Mezzano on Librebooted ThinkPads
I decided to try running Mezzano on real hardware. I figured my Librebooted ThinkPads would be good targets, since, thanks to Coreboot and the Linux kernel, I have reference source code for all the hardware.
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Server-side sandboxing: Containers and seccomp
An overview of containers and seccomp as sandboxing primitives
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Why Kubernetes isn't using Docker's libnetwork
Kubernetes has had a very basic form of network plugins since before version 1.0 was released — around the same time as Docker's libnetwork and Container Network Model (CNM) was introduced. Unlike libnetwork, the Kubernetes plugin system still retains its "alpha" designation. Now that Docker's network plugin support…
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Meltdown Initial Performance Regressions
KPTI/KAISER Meltdown Initial Performance Regressions
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Lobotomizing Gnome
I have pretty basic needs from my desktop. I do 99% of my work using just three programs: a terminal emulator, Emacs, and Firefox. I don't want a lot of bells and whistles in my desktop, and I really just want it to get out of the way so I can do my work.
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How I'm still not using GUIs in 2019: A guide to the terminal
Hot takes and cold truths on software, startups, and the lies we tell ourselves.
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Making Postgres scale
A war story of manually sharding Postgres across 6 databases under load, and the case for automating the process with a proxy instead of weeks of engineering effort.
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The Fastest Google Fonts
Google Fonts is fast. Now it’s faster. Much faster.
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HPC is dying, and MPI is killing it
R&D computing at scale
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Elixir/Erlang Hot Swapping Code (2016)
Hot code reloading with Elixir and Erlang
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Corrosion
Corrosion is distributed service discovery based on Rust, SQLite, and CRDTs.
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ESP32 Undocumented Bluetooth Commands: Clearing the Air
The developer resources in just one place!
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Why Registers Are Fast and RAM Is Slow
In the previous article on ARM64 , I mentioned that one advantage of the new architecture is the fact that it has twice as many registers, allowing code load data from RAM less often, which is much slower. Reader Daniel Hooper asks the natural question: just why is RAM so much slower than registers?
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P99 0 ms* autocomplete for 240M domain names
How Wirewiki's domain-name autocomplete renders suggestions next frame for 99% of keystrokes.
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Optimizing ClickHouse for Intel's ultra-high core count processors
Intel's latest processor generations are pushing the number of cores in a server to unprecedented levels. For analytical databases like ClickHouse, ultra-high core counts represent a huge opportunity and a complex challenge.
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Booting 5000 Erlangs on Ampere One 192-core
Underjord is an artisanal consultancy doing consulting in Elixir, Nerves with an accidental speciality in marketing and outreach. If you like the writing you should really try the pro version .
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Timeliness without datagrams using QUIC
Media over QUIC: Rethink your approach. *Unless you're doing something dope.
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How to Crash Systemd in One Command
After running this command, PID 1 is hung in the pause system call. You can no longer start and stop daemons. inetd-style services no longer accept connections. You cannot cleanly reboot the system. The system feels generally unstable (e.g. ssh and su hang for 30 seconds since systemd is now integrated with the login…
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Performance Improvements in .NET 7
.NET 7 is fast. Really fast. This post deep-dives into hundreds of performance improvements that contributed to that reality.
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SMT Solving on an iPhone (2018)
Why buy an expensive desktop computer when your iPhone is a faster SMT solver?