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Jepsen: MongoDB 4.2.6
2020-05-26: MongoDB identified a bug in the transaction retry mechanism which they believe was responsible for the anomalies observed in this report; a patch is scheduled for 4.2.8.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
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Fil's Unbelievable Garbage Collector
Fil-C uses a parallel concurrent on-the-fly grey-stack Dijkstra accurate non-moving garbage collector called FUGC (Fil's Unbelievable Garbage Collector). You can find the source code for the collector itself in fugc.c , though be warned, that code cannot possibly work without lots of support logic in the rest of the…
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The Case of the Extra 40ms
By: John Blair, Netflix Partner Engineering
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So you want to build your own data center
When it comes to infrastructure engineering, building a data center is probably closer to building a house than to deploying a Terraform stack.
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Asahi Linux for Apple M1 progress report, August 2021
Porting Linux to Apple Silicon
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How we decreased GitLab repo backup times from 48 hours to 41 minutes
Learn how we tracked a performance bottleneck to a 15-year-old Git function and fixed it, leading to enhanced efficiency that supports more robust backup strategies and can reduce risk.
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SSDs have become fast, except in the cloud
A blog by and for database architects.
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Sudo for Windows
Introducing Sudo for Windows We're excited to announce the release of Sudo for Windows in Windows 11 Insider Preview Build 26052! Sudo for Windows is a
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Asahi Linux alpha release
Porting Linux to Apple Silicon
101
I found a bug in Intel Skylake processors
Instructors of “Introduction to programming” courses know that students are willing to blame the failures of their programs on anything. Sorting routine discards half of the data? “That might be a Windows virus!” Binary search always fails? “The Java compiler is acting funny today!” More experienced programmers know…
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An introduction to RabbitMQ
What is RabbitMQ? Find out about this open-source message broker in our introduction to the powerful Message Queue tech.
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Lepton image compression: saving 22% losslessly from images at 15MB/s
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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Postgres LISTEN/NOTIFY does not scale
Learn why Postgres LISTEN/NOTIFY doesn't scale for high-throughput use cases and what architectural alternatives Recall.ai uses in production.
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Asahi Linux 7.1 Progress Report
Porting Linux to Apple Silicon
107
MLow: Meta's low bitrate audio codec
At Meta, we support real-time communication (RTC) for billions of people through our apps, including WhatsApp, Instagram, and Messenger. We are working to make RTC accessible by providing a high-q…
108
BitLocker Lockscreen Bypass
BitLocker is a modern data protection feature that is deeply integrated in the Windows kernel. It is used by many corporations as a means of protecting company secrets in case of theft. Microsoft recommends that you have a Trusted Platform Module which can do some of the heavy cryptographic lifting for you.
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Every 7.8μs your computer’s memory has a hiccup
I was particularly interested in one of the consequences of how dynamic RAM works. You see, each bit of data is stored by the charge (or lack of it) on a tiny capacitor within the RAM chip. But these capacitors gradually lose their charge over time.
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How Figma's databases team lived to tell the scale
Our nine month journey to horizontally shard Figma’s Postgres stack, and the key to unlocking (nearly) infinite scalability.
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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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Kafka is Fast – I'll use Postgres
Why you should just use Postgres instead of Kafka for small-scale message queuing and pub-sub patterns. Benchmarks and practical tests included.
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QUIC is now RFC 9000
QUIC version 1 is officially formalized, and QUIC deployments will now move away from using temporary draft versions to the newly minted version 1.
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Hubris – A small operating system for deeply-embedded computer systems
The release of a small open-source operating system for deeply-embedded computer systems.
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Netflix’s AV1 Journey: From Android to TVs and Beyond
Liwei Guo, Zhi Li, Sheldon Radford, Jeff Watts
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How to Compromise the Enterprise Endpoint
Posted by Tavis Ormandy.Symantec is a popular vendor in the enterprise security market, their fla...