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What Can I Do About Bufferbloat?
Bufferbloat is high latency (or lag) that occurs when there’s other traffic on your network. This means that your network isn’t always responsive - it’s wasting your time.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
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Adopting Microservices at Netflix: Lessons for Architectural Design
Deliver modern applications with NGINX. Explore high-performance load balancing, API gateways, and web server solutions trusted by top global enterprises.
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How We Found 7 TiB of Memory Just Sitting Around
How we saved 7 TiB of memory across our Kubernetes clusters by disabling namespace listwatching in Vector, reducing daemonset overhead and API server load at scale.
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Stream and Go: News feeds for 300M users, built on RocksDB and Raft
Discover the tech stack used by Stream. Explore 42 tools across 5 categories.
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The curious case of slow downloads
Some time ago we discovered that certain very slow downloads were getting abruptly terminated and began investigating whether that was a client (i.e. web browser) or server (i.e. us) problem.
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Very Long-Term Backup (2008)
The Long Now Foundation fosters long-term thinking. Our work encourages imagination at the timescale of civilization — the next and last 10,000 years — a timespan we call the long now.
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The software that flies SpaceX rockets and starships
Spaceflight, from the beginning, has depended on computers – both on the ground and in the spacecraft. SpaceX has carried it to a new level. We recently spoke with Steven Gerding, Dragon’s software development lead, about the special challenges software development has for SpaceX's many missions.
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Learnings from kCTF VRP's 42 Linux kernel exploits submissions
Tamás Koczka, Security Engineer In 2020 , we integrated kCTF into Google's Vulnerability Rewards Program (VRP) to support researchers evalu...
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How PlanetScale Boost serves SQL queries faster
PlanetScale offers the world’s fastest and most scalable cloud hosting for Vitess, Neki, and Postgres.
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Why doesn’t Windows use 64-bit virtual address space below 0x00000000`7ffe0000?
It does use it, although it doesn't look like it.
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Generational GC has landed in Firefox
Big news: late last week, generational garbage collection landed. It was backed out at first due to some test failures, but then re-landed and appears to have stuck.
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Using BPF to Transform SSH Sessions into Structured Events
Teleport’s Enhanced Session Recording feature can add vital extra visibility into commands being run on your systems.
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JIT-compilation using GCC 5
Read the most recent Red Hat Developers blog content. Explore our featured monthly resource as well as our most recently published items.
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Will Kubernetes Collapse Under the Weight of Its Complexity?
A few weeks ago, I attended and spoke at KubeCon EU. It was a massive event attended by around 4,700 people...However, I felt there was an underlying problem with the whole spectacle: everyone I talked to was either an operator or an SRE. Where were al...
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How Microsoft reduced Windows 11 update size by 40%
Reducing update size is important to you, and to us. Explore the techniques we used in Windows 11.
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Attacking the Windows Nvidia Driver
Posted by Oliver ChangModern graphic drivers are complicated and provide a large promising attack...
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Supercharging the Git Commit Graph IV: Bloom Filters
We've been discussing the commit-graph feature in Git 2.18 and how we can use generation numbers to accelerate commit walks. One area where we can get
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Pack: A new container format for compressed files
The most efficient way to pack files.
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How much does Rust's bounds checking cost?
Rust prevents out-of-bounds memory accesses and buffer overruns via runtime bounds checks - what’s the cost of those bounds checks for a real-world, production application?
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Reducing logging cost by two orders of magnitude using CLP
Long, long ago, the amount of data our systems output to logs was small enough that we were able to retain all of the log files. This allowed our engineers to freely analyze the logs, say for troubleshooting our systems or improving applications. But as Uber's business grew rapidly, the amount of data being logged…
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How discord stores billions of messages (2017)
We decided early on to store all chat history forever so users can come back at any time and have their data available. This is a lot of data: how do we do it?
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Solving the Mystery of Link Imbalance: A Metastable Failure State at Scale
Visit the post for more.
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Windows Subsystem for Linux is out of beta
We're excited to announce that in Windows 10 Fall Creators Update (FCU) due to ship in fall 2017, Windows Subsystem for Linux (WSL) will no longer be a