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Introduction to Hierarchical State Machines
The formalism of Hierarchical State Machines (aka statecharts) makes the state machine approach truly applicable to real-life embedded systems. Read more.
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The latest blog posts to take off on Hacker News. 498 posts.
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Sysdig Inspect: A GUI for System Call Analysis
Sysdig Inspect is a powerful interface for container troubleshooting and security investigation that uses sysdig capture files for local analysis
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Debugging an evil Go runtime bug
From heat guns to kernel compiler flags
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Reducing Chrome crashes caused by third-party software
Update (04/26/2019): Third-party developers can now use this document to evaluate the impact of third-party blocking on their software. R...
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The Peculiarly Quiet Decline and Fall of the KVM
Yes, that familiar little PC peripheral. The one that toggles a single keyboard/mouse/display ensemble between two or more connected machines.
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Spanner: TrueTime and external consistency
Understand Spanner's TrueTime and external consistency, ensuring globally consistent reads and writes across the distributed database.
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AWS EC2 Virtualization 2017: Including Nitro
AWS EC2 Virtualization 2017: explaining the different virtualization types, from emulation and binary substitution, paravirtualization and Xen, PV, HVM, and PVHVM modes, and the new Nitro hypervisor
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Keeping Time with Amazon Time Sync Service
Today we’re launching Amazon Time Sync Service, a time synchronization service delivered over Network Time Protocol (NTP) which uses a fleet of redundant satellite-connected and atomic clocks in each region to deliver a highly accurate reference clock. This service is provided at no additional charge and is…
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AWS Fargate – Run Containers Without Managing Infrastructure
Containers are a powerful way for developers to develop, package, and deploy their applications. At AWS we have over a hundred thousand active ECS clusters and hundreds of millions of new containers started each week. That’s 400+% customer growth since 2016. Container orchestration solutions, like Amazon Elastic…
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How Stylo Brought Rust and Servo to Firefox
Two weeks ago, we released Firefox Quantum to the world. It’s been a big moment for Mozilla, shaping up to be a blockbuster release that’s changing how peopl...
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Disable transparent hugepages
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making more efficient use of your processor’s memory-mapping hardware. It is enabled ("enabled=always") by default in most Linux distributions. Transparent Hugepages gives some applications a small performance improvement (~ 10%…
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Linux Runs All of the World’s Fastest Supercomputers
Linux runs all of the world's 500 fastest supercomputers
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There's a mini RTOS in my language
AdaCore is the leading provider of commercial software solutions for Ada, C and C++ — helping developers build safe and secure software that matters.
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Designing a Lock-free, Wait-free Hash Map
Wait-free algorithms attract vast interest and are an area of intense research, the motivation being that true lock-free algorithms and data structures provide great …
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Run the First Edition of Unix with Docker
In this article you'll see how to run a PDP-11 simulator through Docker to interact with Unix as it was back in 1972.
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Better Random Number Generation for OpenSSL, Libc, and Linux Mainline
中文版 In 2015, AWS introduced s2n, a new open source implementation of the TLS/SSL protocols that protect the privacy and integrity of data moving over a network. s2n was designed to be secure, simple, small, and fast. The project is thriving, and we use it extensively. In February, our CISO Stephen Schmidt shared that…
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Desktop compositing latency is real
Update: Note that the capture method I use needs to read pixels back from the GPU which can be slow. This means the Windows 10 results are probably worse than they should be. However, without external hardware this seems to be the only way to measure keyboard to screen latency.
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Reviving the 1973 Unix Programmer's Manual
The 1973 Fourth Edition of the Unix Programmer’s Manual doesn’t seem to be available online in typeset form. This is how I managed to recreate it from its source code.
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ZFS from a MySQL perspective
As the purpose of a database system is to store data, there is close relationship with the filesystem. Yves Trudeau reconsiders the use of ZFS with MySQL.
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FreeBSD/EC2 on C5 instances
Ever since the first EC2 instances launched — the ones which were retrospectively named "m1.small" — Amazon has relied on the Xen hypervisor. No longer: C5 instances use KVM. This sounds like it would be a problem, but in fact that change didn't bother FreeBSD at all: Now that everything uses hardware-based paging…
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Using Go for Scalable Operating System Analytics
At Kolide, part of what we do is build a client-server system that facilitates the management of large, isolated installations of an open-source tool called osquery. While I’ve written and spoken about osquery in the past, in this post I want to focus on how we use Go to solve many of the challenges we face building…
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How Discord Resizes 150M Images Every Day with Go and C++
Discover the latest news and app updates, stories, company insights, and plenty more about Discord, all in one place.
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Red Hat Introduces Arm Server Support for Red Hat Enterprise Linux
Today marks a milestone for Red Hat Enterprise Linux with the addition of a new architecture to our list of fully supported platforms. Red Hat Enterprise Linux for ARM is a part of our multi-architecture strategy and the culmination of a multi-year collaboration with the upstream community and our silicon and hardware…
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Fedora 27 released
The Fedora Project proudly announces the release of Fedora 27, its latest leading-edge operating system. Download it free and experience it today.