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Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,944 posts.
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Fedora 23 Beta released
The Fedora 23 Beta is here, right on schedule for our planned October final release! Want to help make Fedora 23 be the best release ever, or just want to get a sneak peek? Download the prerelease from our Get Fedora site and give it a whirl: Get Fedora 23 Beta Workstation — a reliable, user-friendly, […]
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Comparing TCP and QUIC
There is a common view out there that the QUIC transport protocol (RFC 9000) is just another refinement to the original TCP transport protocol [ 1 ] [ 2 ]. I find it hard to agree with this sentiment, and for me QUIC represents a significant shift in the set of transport capabilities available to applications in terms…
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The NX bit is not just about security
While I’m taking a short break from low-level programming, here’s a story by a friend of mine, Sonya, about debugging a seemingly impossible bug in ARM code. This bug hunting saga started several months ago. While developing a bare-metal hypervisor on ARM64 for postmarketOS, I hit a strange bug: if I enabled the…
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NeXTSTEP on the HP 712 Part 2: Getting Software
In the last post of this series , I set up NeXTstep on an HP PA-RISC workstation . Today, I’m going to get down to business: configure networking, install system patches, outfit it with developer tools, and install some useful software!
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ClickHouse vs PostgreSQL UPDATE performance comparison
See how ClickHouse’s update speed stacks up against PostgreSQL on the same data and hardware.
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Half a second delay caused a 20% drop in traffic
Writings on artificial intelligence, personalization, recommendations, and the tech industry.
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Hacking up a fix for the broken AppleTalk kernel module in Linux 5.1 and newer
I was looking at one of my classic Macs a few weeks ago, and noticed that my Ubuntu 18.04 netatalk server wasn’t showing up in the Chooser anymore. If you’re not familiar with netatalk , it’s an implementation of Apple Filing Protocol (AFP) that runs on Unix-like operating systems such as Linux and NetBSD. It allows…
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Redis as the primary data store
Le tecnologie in tempo reale stanno trasformando il digitale. Permettono interazioni immediate e autentiche🎯 Scopri come migliorano l'esperienza utente e favoriscono il coinvolgimento.
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Amazon Elastic Container Service now supports Amazon EFS file systems
It has only been five years since Jeff wrote on this blog about the launch of the Amazon Elastic Container Service. I remember reading that post and thinking how exotic and unusual containers sounded. Fast forward just five years, and containers are an everyday part of most developers lives, but whilst customers are…
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Postgres SELECT DISTINCT Does Not Scale
Postgres SELECT DISTINCT performs surprisingly poorly. We explain why and how we mitigated it.
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Announcing Yugabyte DB 2.0 GA: High-Performance Distributed SQL
YugabyteDB 2.0 released. Read to learn about production-ready YSQL, performance benchmarks, Jepsen results, and Beta feature previews
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W^X policy violation affects Windows drivers compiled in VS 2013 and previous
Back in June, I was doing some analysis on a Windows driver and discovered that the INIT section had the read, write, and executable characteristics flags set. Windows executables (drivers included…
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Towards Interplanetary QUIC Traffic
Have you ever asked yourself which protocols get used when downloading pictures from the Perseverance Mars rover to Earth? I hadn’t thought about that either, until I came across an intriguing message on the internet, back in April 2024: I’m looking for someone knowledgeable of quic/quinn to help us out for our deep…
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What is malloc doing, anyway?
malloc has a very nice and simple interface: you ask for a certain amount of memory, and you’re given a void pointer to your block of contiguous bytes that’s been magicked into existence. Once you’re done with it, you call free with the same pointer and the memory disappears into the ether.
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Jepsen: YugaByte DB 1.3.1
2019-09-05: YugaByte’s blog post states YugaByte DB “passes Jepsen tests”. We feel obligated to state that YugaByte DB’s Jepsen test suite does not pass, though it may in the future. Race conditions in YugaByte DB’s schema system can cause correctness errors. For example, inserting rows into a freshly-created table…
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Bandaid – Dropbox service proxy
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Reddit decommissions its last Y Combinator funded server
Get the latest product news, company announcements, and user insights from the official Reddit blog.
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The world of PostgreSQL wire compatibility
A wire protocol is the format for interactions between a database server and its clients. It encompasses authentication, sending queries, receiving responses, and so on. It is a description of the exact bytes sent and received by servers and clients. It does NOT encompass the actual query language itself, let alone…
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Generational Garbage Collection in Firefox
Generational garbage collection (GGC) has now been enabled in the SpiderMonkey JavaScript engine in Firefox 32. GGC is a performance optimization only, and should have no observable effects on script ...
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Teensy 3.1 bare metal: Writing a USB driver (2014)
Electronics, Embedded Systems, and Software are my breakfast, lunch, and dinner.
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Allocation Efficiency in High-Performance Go Services
Explore technical topics, solutions, and resources for building with Twilio – and beyond.
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