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Debugging C with Cosmopolitan Libc
Gautham's Blog
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The latest blog posts to take off on Hacker News. 582 posts.
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Maintaining sufficient free space with ZFS
TLDR: ZFS free-space reporting is a lagging indicator. Background I use Proxmox VM server backed by a ZFS array of hard drives for various personal infrastructure. I also have security cameras that upload motion-triggered videos to my server (via FTP!). Problem Description I would like to use 90% of my available space…
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How Rust 1.64 became faster on Windows
If you are a Rust developer you have most likely celebrated the news that the version 1.64 released on 22/09/2022 is 10-20% faster on…
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Curl doesn't add libproxy due to its quality issues
curl, along with every other Internet tool with aspirations, supports proxies. A proxy is a (usually known) middle-man in a network operation; instead of going directly to the remote end server, the client goes via a proxy. curl has supported proxies since the day it was born. Which proxy? Applications that do…
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Linux: What Can You Epoll?
On Linux what can you turn into a file descriptor and then monitor with epoll?
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RISC in 2022
You are seeing this because the administrator of this website has set up Anubis to protect the server against the scourge of AI companies aggressively scraping websites . This can and does cause downtime for the websites, which makes their resources inaccessible for everyone.
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Aquila: A unified, low-latency fabric for datacenter networks
Dan Gibson, Hema Hariharan, Eric Lance, Moray McLaren, Behnam Montazeri, Arjun Singh, Stephen Wang, Hassan M. G. Wassel, Zhehua Wu, Sunghwan Yoo, Raghuraman Balasubramanian, Prashant Chandra, Michael Cutforth, Peter Cuy, David Decotigny, Rakesh Gautam, Alex Iriza, Milo M. K. Martin, Rick Roy, Zuowei Shen, Ming Tan, Ye…
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The FreeBSD/Firecracker Platform
I started working on this on June 20th mainly out of curiosity: I had heard that Firecracker had PVH boot support (which was in fact mistaken!) and I knew that FreeBSD could boot in PVH mode from Xen, so I wondered just how hard it would be to get FreeBSD up and running. Not impossible, as it turned out, but a bit…
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How to build software like an SRE
I’ve been doing this “reliability” stuff for a little while now (~5 years), at companies ranging from about 20 developers to over 2,000. I’ve always cared primarily about the software elements I describe as living “outside” the application – like, how does it get its configuration? What kinds of instances does it run…
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Ryzen 7000 amdgpu boot hang
So you decided to build a brand new system using all the latest and coolest tech, so you buy a Ryzen 7000 series Zen 4 CPU, like the Ryzen 7700X that I picked, with a new mother board and DDR5 memory
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Announcing KataOS and Sparrow
We've open sourced several components for our secure operating system, called KataOS, on GitHub, as well as partnered with Antmicro
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Building a database buffer pool in Zig using io_uring's new fixed-buffer mode
In this post, we will explore how to build a high-performance database buffer pool in Zig using io_uring's new fixed-buffer mode.
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We're moving away from swap partitions on our Linux servers
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Digging into a QEMU problem of slow data copying
The work on QEMU and this post was paid for by Determinate Systems, and the post was co-published on the Determinate Systems blog .
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Verifying distributed systems with Isabelle/HOL
We use distributed systems every day in the form of internet services. These systems are very useful, but also challenging to implement because networks are unpredictable. Whenever you send a message over the network, it is likely to arrive quite quickly, but it’s possible that it might be delayed for a long time, or…
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Anatomy of Linux Dynamic Libraries
Dynamically linked shared libraries are an important aspect of GNU/Linux. They allow executables to dynamically access external functionality at run time and thereby reduce their overall memory footprint (by bringing functionality in when it's needed). This article investigates the process of creating and using…
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Linux NILFS file system: automatic continuous snapshots
In this article, I present the Linux file system NILFS and its automatic continuous snapshoting system.
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Blender: Wayland Support on Linux
Introducing native support for the popular display server protocol on Linux.
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Improving Firefox Responsiveness on macOS
If you're running Firefox on macOS you might have noticed that its responsiveness has improved significantly in version 103.
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The 4th Year of SerenityOS
Well hello friends! Today we celebrate the 4th birthday of SerenityOS, counting from the first commit to the repository, on October 10th, 2018.
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I have come to bury the BIOS, not to open it [video]
Historically, proprietary systems created the need for binary machine interfaces. This extended to the deepest layers of the system, where the PC BIOS was…
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Going where BeOS NetPositive hasn't gone before: NetPositive+
BeOS browser : TLS apocalypse Won't keep it off line. (How do you pronounce BeOS ?) This is a real 133MHz BeBox running otherwise s...
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