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Petabytes on a budget: How to build cheap cloud storage
Get all of the latest cloud storage news and insights from Backblaze - the leading independent cloud storage provider.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,942 posts.
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Jepsen: Datomic Pro 1.0.7075
Datomic is a general-purpose database intended for systems of record. In many ways, Datomic is unusual. At any instant in time, the state of the database is represented by a set of [entity, attribute, value] ( EAV ) triples, known as datoms . Each datom declares that some entity (like a person) has a particular…
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On Abandoning the X Server
There's been some recent discussion about whether the X server is abandonware. As the person arguably most responsible for its care and feed...
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Linux debugging tools you'll love
New zine: Linux debugging tools you'll love
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PureOS is convergent
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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Using FreeBSD to make self-hosting fun again
Feeling like a kid in a candy store, once more
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35M Hot Dogs: Benchmarking Caddy vs. Nginx
Have you ever wondered about the performance delta between Caddy and Nginx? Wonder no more.
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Just the rumour of a bug is enough to find an exploit these days
Thinking through how the conventional OSS security embargoes no longer buy us time, and what open source maintainers might do instead to respond
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JPEG Compression
JPEG is a clever image compression algorithm that exploits a human perceptual bias and the structure of natural images. It makes a change of basis before encoding so that the rewritten image representation concentrates the signal that humans are most perceptive to, and thus, the remaining details can be discarded…
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We called it RAID because it kills bugs dead
The history of defect tracking databases in Windows.
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How Do Routers Work, Really?
An accessible overview of how exactly a router works, with code examples.
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Cheap HDMI capture for Linux
Lately I have had the need to do real time video capture from HDMI devices as of late for a project, and while looking around the internet found that all of the capture cards that are aimed at gamers (windows / OSX support only) or full blown production capture (Very expensive, more inputs than I need). The other…
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Writing an OS in Rust: Hardware Interrupts
In this post, we set up the programmable interrupt controller to correctly forward hardware interrupts to the CPU. To handle these interrupts, we add …
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RISC-V: They Should Have Known Better
Dmitry.GR: I am often asked to explain my distaste for RISC-V. Here it is.
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Clocks and Causality – Ordering Events in Distributed Systems (2022)
In distributed systems, logical clocks play a key role in the ordering of system events. What are the various logical clock designs, and how do they help with event ordering? This article answers these questions.
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Things I can’t do on macOS which I can do on Ubuntu (2020)
I've never "got" the appeal of a Mac. But I have to use one for work. Here's a partial list of everything I cannot do on a Mac, but I can do on Ubuntu. These are all objective facts. These are things which either are impossible, or require adding unsupported 3rd party software - sometimes at a cost. Resize the system…
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Elixir saves Pinterest $2M a year in server costs
Companies see huge server savings with Elixir.
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Love systemd timers
A cron job for every man, woman, and child.
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Garbage collection for systems programmers (2023)
Yet another programming blog. Thoughts on software and related misadventures.
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Slack’s migration to a cellular architecture
Summary In recent years, cellular architectures have become increasingly popular for large online services as a way to increase redundancy and limit the blast radius of site failures. In pursuit of these goals, we have migrated the most critical user-facing services at Slack from a monolithic to a cell-based…
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FreeBSD is an amazing operating system
This is a small article about some of my adventures with FreeBSD and why I believe it is an amazing operating system.
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Twelve years of distributed SQLite
In September 2014 I published a short post announcing rqlite. The idea was simple: take SQLite, put a Raft log in front of it, and replicate every write to a cluster so that the loss of a node did not mean the loss of the data. The source went on GitHub that same weekend. As…