Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,949 posts.
We all know that when designing and operating applications at scale, it is persistent state management that brings the most difficult challenges. Delivering state-free applications has always been (fairly) easy. But most interesting commercial and consumer applications need to manage persistent state. Advertising…
Our servers manage heaps of network packets, from legit traffic to big DDoS attacks. For top efficiency, we adopted eXpress Data Path (XDP), a Linux kernel tool for swift, low-level packet handling.
While working on my Windows 3.x display driver , I ran into a vexing problem. In Windows 3.1 running in Enhanced 386 mode, I could start a DOS session and switch it to a window. But an attempt to set a mode in the DOS window (e.g. MODE CO80 ) would destroy the Windows desktop, preventing further drawing from happening…
IBM announced IBM z/OS V2.5, the next-generation operating system (OS) for IBM Z, designed to accelerate client adoption of hybrid cloud and AI and drive application modernization projects.
I got into some interesting discussions about IPv6 on Twitter. Then someone asked if Android is getting DHCPv6 support in version 11 of the OS.
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…
[English]These are currently difficult times for customers and resellers of VMware products who want to reorder, extend licenses or simply activate product licenses. After the Broadcom takeover…
The performance of a processor is determined by several factors. For example, processors with a higher frequency tend to do more work per unit of time. Physics makes it difficult to produce processors that have higher frequency. Modern processors can execute many instructions per cycle. Thus a 3.4GHz processor has 3.4…
In this technical deep dive, we take a look at the columnar engine that delivers industry leading query performance for AlloyDB for PostgreSQL.
As you can see from my EC2 Instance History post, we add new instance types on a regular and frequent basis. Driven by increasingly powerful processors and designed to address an ever-widening set of use cases, the size and diversity of this list reflects the equally diverse group of EC2 customers! Near the bottom of…
I’d like to give you an update on the EC2 Maintenance announcement that I posted last week. Late yesterday (September 30th), we completed a reboot of less than 10% of the EC2 fleet to protect you from any security risks associated with the Xen Security Advisory (XSA-108). This Xen Security Advisory was embargoed until…
One little step toward UNIX
Once I finished writing ec2-boot-bench, the natural next step was to run some tests — in particular, to see how FreeBSD compared to other operating systems used in EC2. I used the c5.xlarge instance type and tested FreeBSD releases since 11.1-RELEASE (the first FreeBSD release which can run on the c5.xlarge instance…
The hidden disconnects of ZeroMQ can be dangerous if you don’t write your application to work around them.
Types of register explained, and which are available to pass arguments of different types. Call by value and call by reference distinguished.
Introduction Google has a long history of performing networking research, making changes, and pushing those changes to the entire internet. In 2011, they published one of my favorite papers, which described their decision to increase the TCP initial congestion window from 1 to 10 on their entire infrastructure. This…
In the TrueNAS blog, discover the latest in scalable data storage solutions. Stay updated on the latest innovations in TrueNAS technology.
Miguel de Icaza's Blog
I wanted to install the latest version of zsh on my MacBook Pro. This is usually the first thing I install when setting up a new machine. A brew install zsh and a chsh later and I'm good to go (well, technically I had to add the homebrew location of zsh to /etc/shells as well). Close out Terminal.app and reopen to…
Let's create an hello world init program that the kernel can execute to show that everything works correctly:
setting up 20 year old hardware is bound to work first try, right? ... right?
Learn how queues make horizontal scaling, scheduling, and flow control easier in cloud systems, and how to make them durable and observable.
In this post we'll discuss the second argument on why the epoll() is broken. The problem is best described in an LWN comment by Foom :
A realtime server for the modern web
Tips from experts, thoughts from leaders, news from the front line. Join the conversation beyond hyperconverged infrastructure to the enterprise cloud.
