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The most popular blog posts about systems & performance on Hacker News. 6,944 posts.
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…
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…
Cathode Ray Dude recently did an excellent video about the history of the PC case, particularly the early- and mid-1990s, and the various mainboard layouts that pre-date the ATX standard. You should watch it. Here it is.
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I own a Lenovo IdeaPad Duet Chromebook, a ChromeOS 2-in-1 ARM64 tablet. I had been running ChromeOS, then postmarketOS, which suddenly broke. Time for some firmware hacking to try and get Ubuntu to run there!
Every time we press a key in an interactive SSH session, the SSH Client sends that keystroke as a TCP segment to the SSH Server. Here is a Wireshark …
My recent remark about the future of ChromeOS generated a surprisingly passionate response . Some said that my prediction was obvious and b...
In July 2020, I stumbled into a fundamental limitation in the general-purpose database design for transaction processing.
Recent switch of official Firefox builds to Clang on all platforms has triggered some questions about the quality of code produced by GCC c...
Pizlix is LFS (Linux From Scratch) 12.2 with some added components, where userland is compiled with Fil-C. This means you get the most memory safe Linux-like OS currently available.
Updated in 2026: glibc 2.43 added experimental support for building with Clang. In September 2021, I wrote "So, dear glibc, will you be happy with my sending Clang patches?" in Build glibc with LLD 13. We have come to a turning point. In Linux Plumbers Conference 2021, at the glibc Birds of a Feather session, I asked…
We'll get to the shrinking, but first let's motivate the binary in question. Three years ago I wrote the "Surfacing Hidden Change to Pull Requests" post which covered pushing important stats and diffs into PRs as a comment. This avoids surprises with changes that affect binary size, manifests, and dependency trees.
Back in 2017 I wrote about a technique for creating closures in C using JIT-compiled wrapper. It’s neat, though rarely necessary in real programs, so I don’t think about it often. I applied it to qsort , which sadly accepts no context pointer. More practical would be working around insufficient custom allocator…
Previously, I said that TinyKVM runs regular Linux ELFs and I use this to test my programs on the terminal like a regular program before I load them in Varnish.
The coreboot project is proud to announce to have released coreboot 4.11. This release cycle was a bit shorter to get closer to our regular schedule of releasing in spring and autumn. Since 4.10 there were 1630 new commits by over 130 developers. Of these, about 30 contributed to coreboot for the
What are Linux keyring, gnome-keyring, Secret Service, and D-Bus - a brief overview and usage examples
The morning of April 12, 1981, 20 years to the day after Yuri Gagarin became the first person in space, the Space Shuttle thundered into the...
Moving Past the Scaling Myth - Discontinuous Transition in Process and Architecture
I build and maintain smf - the fastest RPC in the west.The main language supported is C++. We use Seastar asthe actual asynchronous framework.
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In my last post I covered the basics of kernel debugging in macOS. In this post we will put some of that to use and work through the process of reversing a macOS kernel module. As I said in my last post, in macOS there is a kernel module named “Don’t Steal Mac OS X” (DSMOS) which registers a function with the Mach-O…
After Firefox , I decided to look into LibreOffice performance with link time optimizations (LTO) and profile feedback (FDO). This post was ...
After a small delay * , the NetBSD Project is pleased to announce NetBSD 9.1 , the first feature and stability maintenance release of the netbsd-9 stable branch.
