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The tyranny of the Hollerith punched card
Wherein the author discusses (another) accident of history.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 423 posts.
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Why Unix needs a standard way to deal with the file durability problem
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Inside Pascal: Nvidia 's Newest Computing Platform
At the 2016 GPU Technology Conference in San Jose, NVIDIA CEO Jen-Hsun Huang announced the new NVIDIA Tesla P100, the most advanced accelerator ever built. Based on the new NVIDIA Pascal GP100 GPU and…
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Qubes OS 3.2 has been released
I’m happy to announce that today we’re releasing Qubes OS 3.2! This is an incremental improvement over the 3.1 version that we released earlier this year. A lot of work went into making this release more polished, more stable and easier to use than our previous releases. One major featu...
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Spotify's Kafka-Based Event Delivery System
Whenever a user performs an action in the Spotify client—such as listening to a song or searching for an artist—a small piece of information, an event, is sent to our servers. Event delivery, the process of making sure that all events gets transported safely from clients all over the world to our central processing…
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ReactOS 0.4.3 Released
ReactOS is a free, opensource reimplementation of windows
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Beamforming in PulseAudio
In case you missed it – we got PulseAudio 9.0 out the door , with the echo cancellation improvements that I wrote about . Now is probably a good time for me to make good on my promise to expand upon the subject of beamforming.
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Debugging using system calls in Mac OS X
Today I want to talk about an issue I was having with UDP sockets in Go, and how I learned more about my program by making use of two tools that ship with Mac OS X called dtruss, and DTrace.
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My Experience with Nix on OS X
Some time ago, I’ve moved this jekyll-based blog from GitHub Pages to a self-hosted NixOS server. A few weeks ago, I’ve also moved some parts of my local OS X environment from homebrew over to nix.
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All Software is Legacy
In what may be judged in years to come as a moment of madness, I have volunteered to be the primary maintainer of the Perl CGI module (CGI.pm). For the non-technical readers of this post: CGI.pm is a few thousand lines of code that in the mid to late nineties, and even some years later, was helping many websites…
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A Base Filesystem Project for macOS
OK9 là nền tảng giải trí và cá cược trực tuyến với hệ thống sản phẩm đa dạng, bao gồm thể thao, live casino, slot game, bắn cá, xổ số và game bài.
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CertiKOS: A breakthrough toward hacker-resistant operating systems
A team of Yale researchers has unveiled CertiKOS, the world’s first operating system that runs on multi-core processors and shields against cyber attacks.
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SSE: mind the gap
SSE and SSE2 are available in every single x86-family CPU with 64-bit support. You too can play around with SIMD, which is great fun! Unfortunately, SSE2 level in particular also happens to be what…
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“I just want to run a container”
"I just want to run a container!"
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HTTPS' massive speed advantage
I tweeted this the other day, and the internet was not pleased: > HTTPS is slow. No - wait - is it HTTP that's slow?! https://t.co/T49GG7oCaK pic.twitter.com/cfnYOpXMWc [https://t.co/cfnYOpXMWc] — Troy Hunt (@troyhunt) July 8, 2016 [https://twitter.com/troyhunt/status/751317949349130240] In fact, a
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When code is suspiciously fast: adventures in dead code elimination
Part of a recent assignment for one of my classes involved calculating the Fibonacci sequence both recursively and iteratively and measuring the speed of each method. (BONUS: For a fun diversion, here is a paper I wrote about using the Golden Ratio, which is closely related to the Fibonacci sequence, as a base for a…
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Multithreading in modern C++
With the new C++11 Standard, C++ faces the first time challenges of multicore architectures. The 2011 published standard defines how a C++ program has to behave in the presence of multiple threads. The C++11 multithreading capabilities are composed of two components. This is, on the one hand, the defined memory model…
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Inside the Magic Pocket
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Schiaparelli descent data: decoding underway
Essential data from the ExoMars Schiaparelli lander sent to its mothership Trace Gas Orbiter during the module's descent to the Red Planet's surface yesterday has been downlinked to Earth and is currently being analysed by experts.
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Mainframes as a lifestyle choice
I started working at IBM last year on mainframe compilers with the goal of making mainframes feel a little more modern. Hence, a lot of my time is spent in z/OS . The interface I use to z/OS is Unix System Services (USS, a.k.a. the command line), but if I were up for bucking the whole moderm thing, I could break out…
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A Cloud-Scale Acceleration Architecture: FPGAs in Microsoft’s Datacenters
A hyperscale Configurable Cloud architecture using FPGAs to efficiently accelerate networking and applications with a distributed fabric in the data center.