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Sonoma's log gets briefer and more secretive
In Sonoma, some healthy Macs are unable to retain complete logs for 24 hours because of the frequency of entries, and even when privacy is removed, some content is censored.
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The latest blog posts to take off on Hacker News. 555 posts.
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Java 21 VirtualThreads vs. Clojure Lazy Seqs
Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS ). Thanks to Anton Fonarev for link aggregation.
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ChromeOS is Linux with Google’s desktop environment
Between the Material You design and move to break apart the Chrome browser from ChromeOS, now more than ever, ChromeOS is Linux with Google's desktop environment.
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Gaia-1 a 9B parameter generative world model for autonomous driving
Scaling GAIA-1: a 9-billion parameter generative world model for autonomous driving
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Where does my computer get the time from?
This week I was in Rotterdam for a RIPE meeting . On Friday morning I gave a lightning talk called where does my computer get the time from? The RIPE meeting website has a copy of my slides and a video of the talk; this is a blogified low-res version of the slides with a rough and inexact transcript.
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Windows NT 3.1 on Dec Alpha AXP
As I was preparing the Windows NT RISC exhibit for VCF west , I realized that I’m missing a rather important piece of the history. While I was showing the potentially last DEC Alpha Windows build ever – AXP64 2210 , I don’t have anything earlier than NT 3.51. It would be nice to showcase the very first RTM version …
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32 MiB Working Sets on a 64 GiB machine
Memory is a relatively scarce resource on many consumer computers, so a feature to limit how much memory a process uses seems like a good idea, and Microsoft did indeed implement such a feature. Ho…
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FlashAttention: Fast Transformer training with long sequences
Transformers have grown deeper and wider, but training them on long sequences remains difficult. The attention layer at their heart is the compute and memory bottleneck: doubling the sequence length would quadruple the runtime and memory requirements.
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-Werror Is not your friend (2017)
22 May 2017 by Phillip Johnston • Last updated 27 October 2023I want to make a few points up front to short-circuit common misunderstandings with this article: I have a zero warning policy on my projects. I turn on a lot of warnings. -Wall, -Wextra, and a whole host of specific warning flags. I supplement … Continue…
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Adding runtime benchmarks to the Rust compiler benchmark suite
This post describes the design and implementation of a runtime benchmark suite for measuring the performance of Rust programs, which was recently added into the Rust compiler suite. I have recently blogged about how the whole benchmark suite works, so feel free to read that post first if you want to gather a bit more…
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50 years later, is two-phase locking the best we can do?
Two phase locking (2PL) was the first of the general-purpose Concurrency Controls to be invented which provided Serializability. In fact, 2P...
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OpenBSD PF versus FreeBSD PF
I encountered yet another discussion about OpenBSD PF versus FreeBSD PF . For those who are new to the discussion: OpenBSD developers created PF in 2001, and it rapidly improved to become the most approachable open source packet filter. FreeBSD ported PF over to its kernel in 2004, with occasional updates since. Today…
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ClickHouse Keeper: A ZooKeeper alternative written in C++
Read about why we built a resource-efficient alternative for Zookeeper from scratch in C++, what our next big step with it is, and how you can join the Keeper community.
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Writing a debugger from scratch: Breakpoints
(New to this series? Consider starting from part 1) At the end of the last post, we started to get some interesting functionality with the ability to resolve addresses to names in a module. This was the last functionality missing before we could implement breakpoints! This part adds the ability for DbgRs to set…
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Arena allocator tips and tricks
Over the past year I’ve refined my approach to arena allocation . With practice, it’s effective, simple, and fast; typically as easy to use as garbage collection but without the costs. Depending on need, an allocator can weigh just 7–25 lines of code — perfect when lacking a runtime . With the core details of my own…
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Introduction to sysclean(8)
sysclean(8) is a system tool designed for help system administrator to keep their OpenBSD clean after upgrade.
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Exploring Linux command-line space time
I was curious to explore how long a program takes to run, how much memory is used over time, and what processes/threads are spawned. To provide answers I wrote a tool, which I named st . Here are a few things I looked into.
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Batch size one billion: SQLite insert speedups, from the useful to the absurd
A little-discussed method enables inserting rows with bound data into SQLite faster than any existing technique. This novel method is then discovered to have a drawback that makes it generally unusable. The rest of this article explores how to get the best insert performance out of SQLite generally; what's in your…
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PostScript’s sudden death in Sonoma
For the last 39 years, PostScript has been at the heart of the Mac, bringing desktop publishing, fonts, and the LaserWriter and other printers. It has been removed from Sonoma.
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Unpacking Elixir: Resilience
The nine nines. 99.9999999% of uptime. Whether the AXD301 actually deserves to be held up as a system of nine nines seems debatable. I am not particularly interested in that debate. Erlang has a strong record for reliability and a design intended to help you as a developer and operator achieve your nines. Maybe just…
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Fiber in C++: Understanding the Basics
Fiber, a less known concept compared with coroutine, is a pretty powerful addition to cooperative multitasking. As a graphics programmer in game industry, I totally appreciate the great flexibility that fiber brings on the table. As a matter of fact, I feel the tech is a little bit underappreciated due to the lack of…
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Parsing integers quickly with AVX-512
If I give a programmer a string such as "9223372036854775808" and I ask them to convert it to an integer, they might do the following in C++: std::string s = .... uint64_t val; auto [ptr, ec] = std::from_chars(s.data(), s.data() + s.size(), val); if (ec != std::errc()) {} // I have an error ! // val … Continue reading…
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Install Windows the Arch Linux Way
Installing Windows strictly through the Command Line is an important tool to have. If windows changes the installer or out of box experience, you can bypass any changes with this guide!
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Introduction to Linux interfaces for virtual networking (2018)
Explore common Linux virtual network interfaces, including Bridge, Bonded interface, VLAN, VXLAN, MACVLAN, IPVLAN, MACVTAP/IPVTAP, and more. Learn how to create and use them effectively for your
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Ruby 3.3's YJIT Runs Shopify's Production Code 15% Faster
Ruby 3.2 YJIT has optimized the production workloads of Shopify and other companies. We encourage you to enable YJIT in production. Once Ruby 3.3 is released, it should make your application even faster.
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Apache Pinot 1.0
Introducing Apache Pinot 1.0 Release
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RabbitMQ vs. Kafka – An Architect’s Dilemma (Part 1)
RabbitMQ and Apache Kafka might appear similar but serve very different needs. Read to learn and make an informed decision suitable for your needs.