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How SQLite scales read concurrency
Understanding how the write-ahead log turns your scaling up to 11.
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PostgreSQL 14 Internals book – Part II
I’m pleased to announce that Part II of the “ PostgreSQL 14 Internals ” book is available now. This part explores the purpose and design of the buffer cache and explains the need for write-ahead logging. Please download the book freely in PDF. There are three more parts to come, so stay tuned! Thanks to Matthew Daniel…
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The Merge
Learn about The Merge, when Ethereum Mainnet moved from proof-of-work to proof-of-stake in September 2022, cutting its energy use by about 99.95%.
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Redox OS 0.7.0
The Redox official website
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What Flips Your Bit: Cosmic Ray Errors at Mozilla
(“This Week in Glean'' is a series of blog posts that the Glean Team at Mozilla is using to try to communicate better about our work. They could be release ...
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Raid-Z Expansion Feature for ZFS Goes Live
The Foundation sponsored feature reflows existing data to rewrite it onto a new arrangement of disks thereby freeing space at the end of the logical RAID-Z group The FreeBSD Foundation funded the project to ensure the completion and release of an easy-to-use and practical application. The project came in under budget…
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We decided to move 90% of our workload from the cloud to on-prem infrastructure
Since the foundation of the first public cloud companies in the early 2000s, they have radically transformed the landscape of the internet…
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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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Performance Improvements in .NET 7
.NET 7 is fast. Really fast. This post deep-dives into hundreds of performance improvements that contributed to that reality.
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Rust in the Linux Kernel: Just the Beginning
Support for using Rust in the Linux Kernel was recently merged by Linus Torvalds. This is important because Rust is memory safe, meaning that code written in Rust does not suffer from things like buffer overflows, use-after-free, and other memory management vulnerabilities that plague software written in unsafe…
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How Precision Time Protocol is being deployed at Meta
Implementing Precision Time Protocol (PTP) at Meta allows us to synchronize the systems that drive our products and services down to nanosecond precision. PTP’s predecessor, Network Time Protocol (…
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Running the Steam Deck’s OS in a virtual machine using QEMU
The Steam Deck is a handheld gaming computer that runs a Linux-based operating system called SteamOS. The machine comes with SteamOS 3 (code name “holo” ), which is in turn based on Arch Linux.
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Yes, the 8086 wanted to be mechanically translatable from the 8080, but
So many addressing modes, so little space.
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New Ghostscript PDF interpreter
Details for Ghostscript's new PDF interpreter
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LXC vs. Docker
Are you confused about whether to use LXC or Docker for your containerization needs? This article compares the two container platforms in terms of ...
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Git’s database internals I: packed object store
This blog series will examine Git’s internals to help make your engineering system more efficient. Part I discusses how Git stores its data in packfiles using custom compression techniques.
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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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An Introduction to PipeWire
This blog post is the first part of a series of 3 articles related to the PipeWire project and its usage in embedded Linux systems.
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Raft Is So Fetch: The Raft Consensus Algorithm Explained Through Mean Girls
Understanding the Raft Consensus Algorithm can be tough. In honor of "Mean Girls" day (October 3), we present Raft as explained through the movie "Mean Girls."
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Attacking Firecracker: AWS' MicroVM Monitor Written in Rust
Why are more security teams adopting Firecracker? How secure is it, and how suitable is it for your organization? This guide dives into this trending innovation.
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PlanetScale Boost
PlanetScale offers the world’s fastest and most scalable cloud hosting for Vitess, Neki, and Postgres.
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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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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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Vulkan update: version 1.2 conformance for Raspberry Pi 4
For the last couple of years, we have been working with our friends at Igalia to bring Vulkan to the Raspberry Pi 4 platform, and today we're happy to announce that we have achieved Vulkan 1.2 conformance from Khronos.