The latest blog posts to take off on Hacker News. 553 posts.
The tool is great, but it uses perf to record and analyze profile data, and perf on Debian has a performance problem : when not linked against libbfd , it shells out to addr2line for every address it needs to look up. Thousands and thousands and thousands of incredibly short-lived processes.
Pumpkin is the name I have given to my port of PalmOS running on the x86 architecture. Please refer to this article for basic information on this project. Also look for other articles in the PalmOS…
For the first time, a large high-temperature superconducting electromagnet was ramped to a field strength of 20 tesla, the most powerful magnetic field of its kind ever created. The demonstration helps resolve the greatest uncertainty in the quest to build the first fusion power plant that can produce more energy than…
Programming note: I will be taking a several week break from writing paper reviews for the summer. When we come back, I will be finishing off the papers from Usenix ATC and OSDI , then moving on to the great upcoming conferences (my non-exhaustive list is here ). As always, feel free to reach out on Twitter with…
I’ve spent too many hours repeatedly trying to find this information on the Web. Time to write it down.
After using the awesome window manager for 10 years, I have switched to i3, another tiling window manager with a different philosophy.
It's common knowledge that Rust code is slow to compile. But I have a strong gut feeling that most Rust code out there compiles much slower than it could.
A few months ago I got a report from a service owner that their service was crashing when trying to access certain files stored in tmpfs. This service provid...
For many mobile users, files are like dinosaurs, a holdover from the bygone desktop era. Sure, they “work” but, they’re mostly there because, you know, ancient history. I’ve discussed this issue for the last 2 years and I usually get some version of “get over it grandpa”.
What are the penalties in real-world use for running your code on Icestorm cores, using around 10% of the power used by Firestorms?
A glance at this year's OSDI program shows that Operating Systems are a small niche topic for this conference, not even meriting their own full session. This is unfortunate because good OS design has always been driven by the underlying hardware, and right now that hardware is almost unrecognizable from ten years ago…
PostgreSQL subtransactions (nested transactions) may cause multiple performance and scalability issues: higher rates of XID growth and higher risks of transaction ID wraparound, performance degradation when more than PGPROC_MAX_CACHED_SUBXIDS (64) are used in a session, drastic performance slowdowns when…
Introducing a series of articles on building a custom Linux installation for the Raspberry Pi, for appliance applications.
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.
As systems get big, people very reasonably start investing more in increasing efficiency and decreasing costs. That’s a good thing, for the business, for the environment, and often for the customer. Much of the time efficient systems have lower and more predictable latencies, and everybody enjoys lower and more…
A question I get asked with some frequency is: why bother measuring X, why not build something instead? More bluntly, in a recent conversation with a newsletter author, his comment on some future measurement projects I wanted to do (in the same vein as other projects like keyboard vs. mouse , keyboard , terminal and…
After using Macs for fifteen years, I switched to Linux as my main operating system and I’m enjoying it. Here’s an introduction to Linux that may help you too.
Linux in a Pixel Shader - A RISC-V Emulator for VRChat
Thoughts on how to write automated tests for a TCP implementation.
Discover the latest news and app updates, stories, company insights, and plenty more about Discord, all in one place.
JSON output must become the norm for application pipelining. Until then, jc can help.
gitfs went on a trip around the world, and we were there to document it: fro Italy to Sweden, from the UK to Spain, gitfs has been center stage.
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.
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.
As an ex-pat living in Denmark, I use FaceTime audio a lot. Not only is it simple to use and reliable, but the sound quality is incredible. For those of you old enough to remember landlines, it reminds me of those but if you had a good headset. When
Take a rip-roarin' tour through hundreds of PRs worth of performance improvements for .NET 6.
