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Linux Kernel vs. DPDK: HTTP Performance Showdown
A head-to-head performance comparison between the Linux kernel's network stack, and a kernel-bypass stack powered by DPDK.
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 100 posts.
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PostgreSQL used fsync incorrectly for 20 years (2019) [video]
About a year ago the PostgreSQL community discovered that fsync (on Linux and some BSD systems) may not work the way we always thought it is, with possibly disastrous consequences for data durability/consistency (which is something the PostgreSQL community really values).
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A decade of major cache incidents at Twitter
This is a collection of information on severe ( SEV-0 or SEV-1 , the most severe incident classifications) incidents at Twitter that were at least partially attributed to cache from the time Twitter started using its current incident tracking JIRA (2012) to date (2022), with one bonus incident from before 2012. Not…
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Apple GPU drivers now in Asahi Linux
Porting Linux to Apple Silicon
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Cloudflare outage on June 21, 2022
Today, June 21, 2022, Cloudflare suffered an outage that affected traffic in 19 of our data centers
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Improving Firefox stability on Windows by retrying failed memory allocation
Poorly behaving web pages and apps are no longer capable of crashing the browser by exhausting memory, thanks to a simple trick.
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Windows Defender is enough, if you harden it
This article is not intended to convince you to abandon your current antivirus solutions. In this post I would like to share my observations and ways to improve the effectiveness of Defender. You don’
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What chroot taught me about containers
In this article, the author explores the concept of containers and how they are essentially chrooted processes. They walk through the process of bu...
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Wasmtime 1.0
As of today, the Wasmtime WebAssembly runtime is now at 1.0! This means that all of us in the Bytecode Alliance agree that it is fully ready to use in production.
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Technical reasons to choose FreeBSD over GNU/Linux (2020)
I run FreeBSD as my daily driver on both my main workstation and on all my servers and I have been running FreeBSD since about 1999 because I consider it an amazing operating system. In this article I will address some of the technical reasons for choosing FreeBSD over a GNU/Linux distribution.
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I almost failed to search a 37 GB text file in under 1 millisecond
... in which we check if your password has been compromised in many inconvenient ways, in a tale of destruction, obsession, and self-discovery.
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Win32 is the stable Linux userland ABI (and the consequences)
This post was inspired by some controversy with Valve and their support for Linux, but the bulk of it comes from long-term observation. One of the biggest impacts with the viability of Linux on the desktop was Valve’s Proton, a… Continue reading →
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Linux Desktop Environments System Usage
Over the years I've seen a lot of poorly made comparisons of Linux Desktop Environments in terms of system usage and in this article I want to make things right once and for all.
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Scaling Mastodon is impossible
Now that Twitter is dying, what can replace it?
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Python is Actually Portable
Gautham's Blog
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TypeScript as fast as Rust: TypeScript++
TL;DR: This is a proposal to create a language that sits somewhere between Typescript and Rust, and which you can incrementally adopt if you already use Typescript.
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Userspace isn't slow, some kernel interfaces are
Discover how recent improvements to wireguard-go boost Tailscale client performance on Linux. Learn about key changes, testing methods, and results showing enhanced throughput and efficiency.
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WebVM: WASM virtual machine in browser with networking via Tailscale
WebVM, our virtual Linux environment running fully client-side in the browser, now supports networking via Tailscale.
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Use fast data algorithms (2021)
As an engineer who primarily works with data and databases I spend a lot of time moving data around, hashing it, compressing it, decompressing it and generally trying to shovel it between VMs and blob stores over TLS. I am constantly surprised by how many systems only support slow, inefficient, and expensive ways of…
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The most important thing to understand about queues (2016)
You only need to learn a little bit of queueing theory before you start getting that ecstatic “everything is connected!” high that good math always evokes. So many damn things follow th…
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A general overview of what happens before main() (2019)
8 April 2019 by Phillip Johnston • Last updated 22 August 2022For most programmers, a C or C++ program’s life begins at the main function. They are blissfully unaware of the hidden steps that happen between invoking a program and executing main. Depending on the program and the compiler, there are all kinds of…
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Update Firmware of Samsung SSDs in Linux
Firmware flash Samsung SSD or NVMe directly from Linux without needing broken Samsung ISO boot environment!
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Improve Git monorepo performance with a file system monitor
Monorepo performance can suffer due to the sheer number of files in your working directory. Git’s new builtin file system monitor makes it easy to speed up monorepo performance.
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How to stop running out of ephemeral ports and love long-lived connections
Often programmers have assumptions that turn out, to their surprise, to be invalid. From my experience this happens a lot. Every API, technology or system can be abused beyond its limits and break in a miserable way
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The time has come to replace file systems
The time has come to replace file systems!