1591
From slow to SIMD: A Go optimization story
So, there's this function. It's called a lot. More importantly, all those calls are on the critical path of a key user interaction. Let's talk about making it fast.
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The latest blog posts to take off on Hacker News. 6,947 posts.
1592
Boeing whistleblower: MAX 9 production line has "enormous volume of defects"
A reader at respected airline industry site Leeham News offered a comment that suggests they have access to Boeing’s internal quality control systems, and shares details of what they saw regarding the Boeing 737 MAX 9 flown by Alaska Airlines that had a door plug detach inflight, causing rapid decompression of the…
1593
Unbloating the buffers
What is bufferbloat, why is it bad, and what to do about it
1594
Self-contained Linux applications with lone Lisp
Creating standalone Linux applications with lone.
1595
Investigating a vanishing BIOS on the Fujitsu Lifebook AH532
A few months ago, I got given a laptop with a very interesting condition. The BIOS setup menu was supposedly inaccessible, and nothing apart from the default boot option works. Time to investigate to see what is actually happening and what we can do about it.
1596
Ceph: A Journey to 1 TiB/s
Ceph is an open source distributed storage system designed to evolve with data.
1597
Sourcehut network outage post-mortem
sourcehut is a network of useful open source tools for software project maintainers and collaborators, including git repos, bug tracking, continuous integration, and mailing lists.
1598
Systemd: Enable indefinite service restarts
When a service fails to start up enough times in a row, systemd gives up on it. On servers, this isn’t what I want — in general it’s helpful for automated recovery if daemons are restarted indefinitely. As long as you don’t have circular dependencies between services, all your services will eventually come up after…
1599
How DOS was able to use most of the 1 MB address space of the 8086
A tour on how DOS was able to use most of the 1 MB address space of the 8086
1600
Apple built iCloud to store billions of databases
Apple uses Cassandra and FoundationDB for CloudKit, their cloud backend service. We take a look into how exactly each is used within their cloud and the problems they've solved.
1601
Understanding x86_64 Paging
I’ve spent quite a lot of time messing with x86_64 page tables, understanding address translation is not easy and when I started learning about it I felt like a lot of the material out there on how it works was hard for me to wrap my head around. So in this blog post I am going to attempt to provide a kind of “what I…
1602
Passing nothing is surprisingly difficult
My day job is in browsers and cryptography , not compilers, yet I often find that I need to spend more of my time working through the semantics of programming languages than using them. This post discusses a thorny cross-language issue between C, C++, and Rust. In short:
1603
Std: Clamp generates less efficient assembly than std:min(max,std:max(min,v))
UPDATE: This blog post has been updated based on feedback from Reddit and Hacker News. HN discussion: https://news.ycombinator.com/item?id...
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1605
We switched to Java 21 virtual threads and got a deadlock in TPC-C for Postgres
We revise some fundamental background and highlight an important concern behind Java 21 virtual threads: deadlocks might be unpredictable
1606
Order/license chaos for VMware products after Broadcom takeover
[English]These are currently difficult times for customers and resellers of VMware products who want to reorder, extend licenses or simply activate product licenses. After the Broadcom takeover…
1607
The M2 is more advanced than it seemed
Apple’s M2 chip uses a newer version of the CPU core instruction set. This increases its capability, thus how well it will cope with future apps and macOS, compared with the M1.
1608
SQLite: Wal2 Mode
"Wal2" mode is very similar to "wal" mode. To change a database to wal2 mode, use the command:
1609
How virtualisation came to Apple Silicon Macs
From Hypervisor APIs in OS X 10.10 Yosemite in 2014, through early VirtIO kernel extensions in Mojave in 2018, and Arm hypervisor support in Big Sur.
1610
A Technical Dive into PostgreSQL's replication mechanisms
Guide to PostgreSQL Replication and CDC - Navigate the complexities of logical replication in PostgreSQL.
1611
Building a baseline JIT for Lua automatically (2023)
This is the Part 2 of a series. Feel free to read the prequel for more context: Building the fastest Lua interpreter automatically Building a good VM for a dynamic language takes a ton of engineerin
1612
epoll: The API that powers the modern internet (2022)
Linux's epoll API solved the C10K problem, enabling fast and afforable Internet services.
1613
The memory remains: Permanent memory with systemd and a Rust allocator
A Rust object that survives program restart thanks to Rust allocators, systemd's file descriptor store, and syscall memfd_create.
1614
"I Contribute to the Windows Kernel. We Are Slower" (2013)
I was explaining on Hacker News why Windows fell behind Linux in terms of operating system kernel performance and innovation. And out of nowhere an anonymous...
1615
Databases and why their complexity is now unnecessary
This post is not going to be about what’s wrong with individual databases. There are so many databases and so many individual API issues, operational problems, and arbitrary limitations that it wou…
1616
Solver Performance: 1989 vs. 2024
We estimate the magnitude of speed improvement for optimization solvers and computer hardware in the 35 years from 1989 to 2024.
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Visualizing Ext4
What does ext4 look like?
1619
Systemd through the eyes of a musl distribution maintainer
Welcome back to FOSS Fridays! This week, I’m covering a real pickle. I’m acutely aware of the flames this blog post will inspire, but I feel it is important to write nevertheless. I volunteer my ti…
1620
M3 CPU cores have become more versatile
M3 chips widen the gap between Pro and Max variants. They also change relative performance between P and E cores to make M3 CPUs more versatile.