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What's in the Box?
Here’s a sentence I find myself saying several times a week: …or we could just box it. There’s two remarkable things about this sentence. The first, is that the advice is very rarely heeded, and in...
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,942 posts.
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LevelDB: A Fast Persistent Key-Value Store
The latest news from Google on open source releases, major projects, events, and outreach programs for early career developers.
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Two Objects Not Namespaced by the Linux Kernel (2017)
Covers two Linux primitives that are not namespaced by the current set of Linux kernel namespaces.
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Faster filesystem access with Directfs
Directfs is now the default in runsc. This feature gives gVisor’s application kernel (the Sentry) secure direct access to the container filesystem, avoiding expensive round trips to the filesystem gofer. Learn more about this feature in the following blog that was originally posted on Google Open Source Blog .
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Using MySQL as a NoSQL - A story for exceeding 750,000 qps on a commodity server
UPDATE: Oracle officially released memcached daemon plugin that talks with InnoDB. I'm glad to see that NoSQL+MySQL has become an official ...
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How to Print Integers Really Fast
Paul Khuong's personal blog. Some Lisp, some optimisation, mathematical or computer.
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SVT-AV1: open-source AV1 encoder and decoder
by Andrey Norkin, Joel Sole, Mariana Afonso, Kyle Swanson, Agata Opalach, Anush Moorthy, Anne Aaron
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Linux Raw Sockets
Recently I did a userspace implementation of the Host Identity Protokoll (HIPv2, RFC 7401) with the upcoming Diet Exchange (HIP DEX, IETF draft 6) . Doing so, I've learnt a lot about raw socktet programing under Linux and here I want to share a few things with you.
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Building a Networked Key-Value-Store on an FPGA
This post is about building an FPGA based networked key-value-store in the functional hardware description language Clash. I’ll describe my FPGA-tailored hashtable design, the testing framework I built for it, and its performance and resource usage.
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Absurd Workflows: Durable Execution with Just Postgres
Durable execution with just postgres.
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A minimum complete tutorial of Linux ext4 file system (2017)
This is a complete tutorial for understanding the basics of Linux ext4 file system.
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Hybridizer: High-Performance C# on GPUs
Hybridizer is a compiler from Altimesh that lets you program GPUs and other accelerators from C# code or .NET Assembly. Using decorated symbols to express parallelism, Hybridizer generates source code…
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Migrating bajillions of database records at Stripe
There are roughly ten thousand bajillion (to the nearest bajillion) merchants registered with Stripe. We recently finished a Very Big Migration of Large Amounts Of Data between several database tables for every single one of them, without losing any of it, without any downtime, mis-reads or mis-writes, whilst running…
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An lsof Primer
Key Options Getting Information About the Network User Information Commands and Processes Files and Directories Advanced lsof is the sysadmin/security über-tool
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Down the 'ls' Rabbit Hole
By: Adam Fletcher ( @adamfblahblah ) From ls(1) to the kernel and back again. Too often sysadmins are afraid to dive into the sou...
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Rumors of Cmd’s death have been greatly exaggerated
This post is in response to a story published on December 6th 2016 by ComputerWorld titled "Say goodbye to the MS-DOS command prompt" and its follow-up
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OpenClaw’s memory is unreliable, and you don’t know when it will break
We made a YouTube video showing how NonBioS can deploy OpenClaw on a fresh Linux VM automatically - zero human intervention, about 7 minutes start to finish.
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Android 12 is live in AOSP
News and insights on the Android platform, developer tools, and events.
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Swift Distributed Actors
We’re thrilled to announce a new open-source package for the Swift on Server ecosystem, Swift Distributed Actors, a complete server-oriented cluster library for the upcoming distributed actor language feature!
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Time is not a synchronization primitive
Xe Iaso's personal website.
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Intel i7 loop performance anomaly
Recently I've been doing some benchmarking and came upon a very surprising behavior from a number of different Intel i7 CPUs (it manifests on Sandy Bridge and Haswell desktop-class CPUs as well as Sandy Bridge-EP Xeon CPUs).
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What Microchip doesn't (officially) tell you about the VSC8512
This is part 3 of my ongoing series about LATENTRED, my project to create an open source 1U managed Ethernet switch from scratch.