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New
The latest blog posts to take off on Hacker News. 278 posts.
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Solving the Mystery of Link Imbalance: A Metastable Failure State at Scale
Visit the post for more.
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Systemd redux: The end of Linux
I figured it was about time for a followup on my systemd post. I’ve been meaning to do it for a while but time hasn’t allowed.
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Unicorn Unix Magic Tricks
This post is based on the talk of the same name I gave at the Arrrrcamp conference in Ghent, Belgium on October 2nd, 2014. You can find the slides here and the video recording here .
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Queues Don't Fix Overload
People misuse queues all the time. The most egregious case being to fix issues with slow apps, and consequently, with overload. But to say why, I'll need to take bits of talks and texts I have around the place, and content that I have written in more details about in Erlang in Anger .
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68 Katy – 68000 Linux on a Solderless Breadboard
What does it take to build a little 68000-based protoboard computer, and get it running Linux? In my case, about three weeks of spare time, plenty of coffee, and a strong dose of stubborness. After banging my head against the wall with problems ranging from the inductance of pushbutton switches to memory leaks in the…
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Tornado Without a GIL on PyPy STM
This post is by Konstantin Lopuhin, who tried PyPy STM during the Warsaw sprint. Python has a GIL, right? Not quite - PyPy STM is a python ...
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Why curl defaults to stdout
(Recap: I founded the curl project, I am still the lead developer and maintainer) When asking curl to get a URL it'll send the output to stdout by default. You can of course easily change this behavior with options or just using your shell's redirect feature, but without any option it'll spew it out to … Continue…
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The Move from Linux to FreeBSD
About 2 months ago, I had a spare VPS at my host, Hetzner. So I decided to play with FreeBSD which was being offered for Hetzner servers and VPSes.That’s how the whole thing started. I didn’t have much problems getting the concepts because it belongs to *nix family of OSes [...]
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Arrakis: The Operating System Is the Control Plane
Simon Peter, Jialin Li, Irene Zhang, Dan R. K. Ports, Doug Woos, Arvind Krishnamurthy, and Thomas Anderson, University of Washington; Timothy Roscoe, ETH Zürich
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Performance is a Feature
We’ve always put a heavy emphasis on performance at Stack Overflow and Stack Exchange. Not just because we’re performance wonks (guilty!), but because we think speed is a competitive advantage. There’s plenty of experimental data proving that the slower your website loads and displays, the less people
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AWS EC2 Container Service
Earlier this year I wrote about container computing and enumerated some of the benefits that you get when you use it as the basis for a distributed application platform: consistency & fidelity, development efficiency, and operational efficiency. Because containers are lighter in weight and have less memory and…
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Sometimes Kill -9 Isn't Enough
If there’s one thing to know about distributed systems, it’s that they have to be designed with the expectation of failure. It’s also safe to say that most software these days is, in some form, distributed—whether it’s a database, mobile app, or enterprise SaaS. If you have two different processes talking to each…
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Deis v1.0 – Production Ready
Discover Azure Kubernetes Service (AKS) for secure, scalable containerized app deployment and management with fast delivery on managed Kubernetes clusters.
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TCP is harder than it looks
It's easy to write a TCP stack that works with most traffic. It's harder to write one that interoperates properly with every strange or buggy device that's out there.
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How we’ve made Raptor fast
Ruby web server up to 4x faster than Unicorn, up to 2x faster than Puma and Torquebox.
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Why Intel is adding instructions to speed up non-volatile memory
The latest version of the Intel manual has a couple of new instructions for non-volatile storage, like SSDs . What's that about?
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PyPy IO improvements
Hello everyone! We've wrapped up the Warsaw sprint, so I would like to describe some branches which have been recently merged and which i...
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Please grow your buffers exponentially
If you record every heap allocation and re-allocation done by Firefox you find some interesting things. In particular, you find some sub-optimal buffer growth strategies that cause a lot of heap churn.
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