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Dmesg under the hood
Dmesg allows us to grasp what's going on under the hood when the kernel gets bad. Check out how dmesg is able to read kernel logs and show to the user.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,947 posts.
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CoreBGP – Plugging in to BGP
In this post I'll provide some of my personal experience and history working with BGP, and introduce a new BGP library, CoreBGP, which can be used to build the next generation of BGP-enabled applications.
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All about 64-bit programming in one place
Access technologies that use data for modern code, machine learning, big data, analytics, networking, storage, servers, cloud, and more.
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x86 is dead, long live x86
The last couple of years have been quite revolutionary in the Silicon industry as a whole. With the resurgence of horizo
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Malloc Never Fails (2012)
Here’s a fun bit of trivia: malloc on Linux never fails [due to the obvious cause]. In this post, we’ll show that this indeed is the case, and explore why…
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Creating an all-weather driver
Life doesn't freeze when winter comes—if anything, that's when riders need reliable transportation most, when being exposed to the elements becomes less appealing. Today, the Waymo Driver successfully navigates rain, fog, sandstorms, and freezing temperatures. As we expand to more cities across the U.S. and globally…
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Intel and ARM Performance Characteristics for S3 Compatible Object Storage
Product updates, company news, and educational content on AI storage, object storage, data lakehouses, and cloud-native infrastructure from MinIO.
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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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The cost of dynamic vs. static dispatch in C++
A couple of years ago I wrote an article about the Curiously Recurring Template Pattern in C++ , focusing on the motivation behind it and how to implement it.
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Limitations of frame pointer unwinding
Explore 3 limitations of using frame pointers for stack unwinding and profiling in Linux that are often overlooked, plus possible future alternatives.
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Oracle is the #1 contributor to the core of Linux in 5.18
By the metric of
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Minify and Gzip (2022)
I've been doing a bit of work cleaning up the CSS on this blog in the past couple days — the CSS is from a template that I copied more than five years ago at this point, and it was pretty crufty even when I first got it.
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Mono 5.0 Ships with Concurrent Garbage Collector
In Mono 5.0 we are shipping a new operation mode for our Garbage Collector: Concurrent Garbage Collection.
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We Replaced an SSD with Storage Class Memory
MongoDB's blog includes technical tutorials, MongoDB best practices, customer stories, and industry news related to the leading non-relational database.
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Highly efficient matrix transpose in Mojo
In this blogpost I will step by step show you how to implement a highly efficient transpose kernel for the Hopper architecture using Mojo. The best kernel a...
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Shared Libraries as Executables
Typically you either have an executable or a shared library, but can you have an executable shared library too?
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What is gVisor?
It has been a really long time since I last wrote something here as life happens, things get busier, etc etc. I am now trying to get back into writing things down and here we go! So, imagine a tool or a service that allows you to run some arbitrary code via a shell. Either through a ssh or more commonly, via a web…
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What part of Rust compilation is the bottleneck?
Rust compilation times is an ongoing topic that generates many discussions online1. Most people don’t really care about what exactly takes time when compiling Rust program; they just want it to be faster in general. But sometimes, you can see people pointing fingers at specific culprits, like LLVM or the borrow…
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OpenBSD on the Huawei MateBook X
The Huawei MateBook X is a high-quality 13" ultra-thin laptop with a fanless Core i5 processor. It is obviously biting the design of the Apple 12" MacBook , but it does have some notable improvements such as a slightly larger screen, a more usable keyboard with adequate key travel, and 2 USB-C ports.
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In-Memory Filesystems in Rust
I’ve been working on a CLI tool recently, and one of the things it does is manage files on disk. I have written a lot of file management tests for Bundler, and the two biggest reasons that the Bundler test suite is slow are exec and fstat. Knowing that, I thought I would try to get out ahead of the slow file stat…
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AVX-512: First Impressions on Performance and Programmability
A simple, whitespace theme for academics. Based on [*folio](https://github.com/bogoli/-folio) design.
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Practical Libc-free threading on Linux
Suppose you’re not using a C runtime on Linux, and instead you’re programming against its system call API. It’s long-term and stable after all. Memory management and buffered I/O are easily solved, but a lot of software benefits from concurrency. It would be nice to also have thread spawning capability. This article…
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Linux 3.8 Released
Summary of the changes and new features merged in the Linux Kernel during the 2.6.x and 3.x development