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Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,942 posts.
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Windows Server 2019 Includes OpenSSH
The OpenSSH client and server are now available as a supported Feature-on-Demand in Windows Server 2019 and Windows 10 1809! The Win32 port of OpenSSH was first included in the Windows 10 Fall Creators Update and Windows Server 1709 as a pre-release feature. In the Windows 10 1803 release, OpenSSH was released as a…
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Does it scale? Who cares (2011)
Web developers the world over are always terminally worried about whether or not their application will scale orders of magnitude without keeling over.
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Unconventional PostgreSQL Optimizations
Creative ideas for speeding up queries in PostgreSQL
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Why choose async/await over threads?
A common refrain is that threads can do everything that async/await can, but simpler. So why would anyone choose async/await?
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The 4th Year of SerenityOS
Well hello friends! Today we celebrate the 4th birthday of SerenityOS, counting from the first commit to the repository, on October 10th, 2018.
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Down the Rabbit-Hole
Posted by Tavis Ormandy, Security Research Over-Engineer.“Sometimes, hacking is just someon...
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Epiphany-V: A 1024-core 64-bit RISC processor
I am happy to report that we have successfully taped out a 1024-core Epiphany-V RISC processor chip at 16nm. The chip has 4.5 Billion transistors, which is 36% more transistors than Apple’s latest 4 core A10 processor at roughly the same die size. Compared to leading HPC processors, the chip demonstrates an 80x…
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Why databases use ordered indexes but programming uses hash tables
I think it is safe to state that hash tables (e.g. maps in Go, dicts in Python, HashMap in Java, etc.) are far more common than ordered data structures such as trees for in-memory data structures. One data point is that in a talk about C++ hash table optimization at Google ( available in Abseil ), the speaker noted…
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Docker operations slowing down on AWS
I’m CC’d on mails when things get slow, but never when things work as expected or are fast…oh well. Like an umpire in baseball, if we are doing our jobs, we are invisible. Subjec…
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Reasons Kubernetes is so complex
Preface Hello friends! It’s been a while. I’ve been finding it very hard to write while holding up a full-time job, and I’ve also been dealing with some very...
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Postgres 15 improves UNIQUE and NULL
Postgres 15 beta 2 was released recently! I enjoy Beta season... reviewing and testing new features is a fun diversion from daily tasks. This post takes a look at an improvement to UNIQUE constraints on columns with NULL values . While the nuances of unique constraints are not as flashy as making sorts faster (that's…
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Prime Video Uses WebAssembly
The switch to WebAssembly increases stability, speed.
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How Basecamp Next got to be so damn fast without using much client-side UI
When we started working on Basecamp Next last year, we had much internal debate about whether we should evolve the existing code base or rewrite it. I’ll dive more into that debate further in a later post, but one of the key arguments for a rewrite was that we wanted a dramatic leap forward i…
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Linux in a Pixel Shader – A RISC-V Emulator for VRChat
Linux in a Pixel Shader - A RISC-V Emulator for VRChat
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No Start Menu for You
I tend to launch most programs on my Windows 10 laptop by typing the <Win> key, then a few letters of the program name, and then hitting enter. On my powerful laptop (SSD and 32 GB of RAM) th…
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3K, 60fps, 130ms: achieving it with Rust
How we chose the Rust programming language to advance the state-of-the-art in real-time communication
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Stupid Unix Tricks
These are my stupid unix tricks. I hope that they are useful to you. Platform Note I use Mac OS X (pron: “ten”). If you don’t, you might want to switch…
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Firefox 94 to start using EGL on Linux
Hi there! This is a guest post from Robert Mader, who contributed enormous improvements to Firefox’s graphics stack on Linux. TL;DR In the upcoming Firefox 94 release we will enable the EGL b…
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PostgreSQL Full-Text Search: Fast When Done Right (Debunking the Slow Myth)
Boost PostgreSQL full-text search speed by 50x with simple optimizations. Use VectorChord-BM25 to accelerate and better BM25 ranking in postgres.
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The costs of microservices (2020)
An application typically starts its life as a monolith. Take a modern backend of a single-page Javascript application, for example - it starts out as a single stateless web service that exposes a RESTful HTTP API and uses a relational database as a backing store. The service is composed of a number of components, or…
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Windows 10 20H2: ChkDsk damages filesystem on SSDs with KB4592438 installed
[German]In Windows 10 20H2 with installed cumulative update KB4592438, chkdsk causes massive issues. It destroys the file system during a disk check on SSDs, so Windows 10 can’t start after a reboot.
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