Earlier today, I saw a link on the ClassicCmp.org mailing list to a project to re-implement the DEC VAX CPU on an FPGA. Its entitled First new vax in ...30 years? Someone posted it on Hackernews . One of the comments said, roughly, that they didnt see the significance and…
Discover how ZFS rapidly gained popularity from its inception at Sun, leading to the rise of OpenZFS. Learn about its journey in the second part of our series.
It all started with the big bang! We nearly lost 33 of 36 disks on a Proxmox / Ceph Cluster; this is the story of how we recovered them.
Cache strategies that don't trade-off correctness for speed
Ray: A Distributed Framework for Emerging AI Applications Moritz, Nishihara, Wang et. al.
This post is part of a larger effort you can view over here: https://osblog.stephenmarz.com .
In this article we’ll learn how to build shared libraries and install them properly on several platforms. For guidance, we’ll examine the goals and history of dynamic linking on UNIX-based operating systems.
Fedora Linux 34 is released and ready for you to install or upgrade today.
TL;DR: Some Linux distros and even different kernel versions within a distro have disabled IRQ time accounting. In such case, your monitoring tools will report zero time spent in hardware interrupt handlers (shown as %hi, %irq, hiq, etc). It’s easy to check how your kernel is behaving by looking at /proc/stat and you…
Updated: 2023-01-06 About a year ago I was bitten by the PL bug. It started with reading Crafting Interpreters and discovering the wonders hidden under the hood of a compiler. I am also been a big fan of Emacs, and this started to get me interested in how its interpreter works. At the same time, I was reading the Rust…
We compare NGINX performance in bare-metal and virtualized (hypervisor) environments, finding a small but measurable performance cost for hypervisors. We also find that performance in Kubernetes environments is worse for network-bound but not CPU-bound operations.
Earlier this year, I pitted the $549 ASUSTOR Lockerstor 4 NAS against a homebrew $350 Raspberry Pi CM4 NAS, and came to the (rather obvious) conclusion that the Lockerstor was better in almost every regard. Well, ASUSTOR introduced a new lower-cost NAS, the $329 Drivestor 4 Pro (model AS3304T—pictured above), and sent…
Chaining a misconfiguration in IE11/Edge Legacy with an argument injection in a Windows 10/11 default URI handler and a bypass for a previous Electron patch, we developed a drive-by RCE exploit for Windows 10. The main vulnerability in the ms-officecmd URI handler has not been patched yet and can also be triggered…
We performed experiments to find out how different Linux system calls perform for available devices.
Our continual investments in the performance of Chrome have led to significant improvements in battery life, memory, and the speed of the we...
In Linux 5.13 ethtool gains an interface for querying IEEE and IETF statistics. This removes the need to parse vendor specific strings in...
Recently, we've been working to scale Sourcegraph cloud's index to 1 million open source repositories and beyond. Part of that effort has been reducing the RAM usage for the Zoekt (pronounced "zooked") servers responsible for handling most of our code searches.
DuckDB, a free and open-source analytical data management system, has a new highly efficient parallel sorting implementation that can sort much more data than fits in main memory.
I have reached a good milestone on the SCAMP hardware: it can now execute code! It runs all the way through the test program correctly.
I’ve done a couple of posts on LLVM itself, mostly on things you can do with LLVM or how LLVM represents particular program features.
disclaimer: this is a technical post aimed at developers being somewhat aware of the problem space. There will be a concluding ‘the day of…’ post aimed at end users where some of …
Discover more about what's new at AWS with Amazon Time Sync Service now makes it easier to generate and compare timestamps
PipeWire has already made great strides forward in terms of improving the audio handling situation on Linux, but one of the original goals was to also bring along the video side of the house. In fact in the first few releases of Fedora Workstation where we shipped PipeWire we solely enabled it as a tool...
