The latest blog posts to take off on Hacker News. 553 posts.
Fixing production issues is one of the key responsibilities of system and network administrators. In fact, I’ve always found it to be one of the most interesting parts of infrastructure engineering. Diving as deep as needed into the problem at hand, not only do you (eventually) have the satisfaction of solving the…
BUILDING FOR HUMANITY
http://invisible-island.net/ autoconf/ Copyright © 2014–2015,2016 by Thomas E. Dickey
Now that I have your attention. I've been mulling TenFourFox's future for awhile now in light of certain feature needs that are far bigger ...
It's time to put my water cooled Raspberry Pi Cluster to the test. I put it up against my MacBook and a Windows PC to see which performed best
As cheesy as the title sounds, I promise it cannot beat the cheesiness of the technique I’ll be telling you about in this post. The morning I saw Mark …
When benchmarking software, we often start by measuring the time elapsed. If you are benchmarking data bandwidth or latency, it is the right measure. However, if you are benchmarking computational tasks where you avoid disk and network accesses and where you only access a few pages of memory, then the time elapsed is…
When the Compute Module 4 was released (see my CM4 review here), I asked the Pi Foundation engineers when we might be able to boot off NVMe storage, since it was trivially easy to use with the exposed PCIe x1 lane on the CM4 IO Board. The initial response in October 2020 was "we'll see". Luckily, after more people…
JDK 16 is out, and as usual, each new release comes with a bunch of new features, enhancements and bug fixes. ZGC received 46 enhancements and 25 bug fixes. Here I’ll cover a few of the more interesting enhancements.
Explore Plan 9, Bell Labs' innovative operating system. Discover its impact on distributed computing, network-centric design, and modern OS development.
Update : Dongli Zhang reports that newer Linux versions organize the stack differently . The code below will need to be modified accordingly.
When I first got my 133MHz BeBox (not new, sadly), it had "only" 32MB of memory and it had four more SIMM slots to fill. While Be only off...
SQL's UNION operation isn't usually regarded as a way to optimize query performance, but in many cases it can be used to achieve massive improvements in speed.
This post is the last in a three-part series about Cranelift . In the first post , I covered overall context and the instruction-selection problem; in the second post , I took a deep dive into compiler performance via careful algorithmic design.
On this blog, I write about the various computers I use and about the operating systems I use on them. Apart from Windows 7, which is relatively modern, these include Mac OS 10.6 Snow Leopard, which at this point is quite old, and Mac OS 9, which is practically ancient. I’d like to talk a bit about why I use such old…
Paul Khuong's personal blog. Some Lisp, some optimisation, mathematical or computer.
GitHub has done a lot of work in the last six months to improve performance for large monorepos.
Slack has a global customer base, with millions of simultaneously connected users at peak times. Most of the communication between users involves sending lots of tiny messages to each other. For much of Slack’s history, we’ve used HAProxy as a load balancer for all incoming traffic. Today, we’ll talk about problems we…
C is a simple language. You’re only allowed to have one function with each name. C++, on the other hand, gives you much more flexibility: You can have multiple functions …
Performance comparison of counting and sorting word frequencies in various languages (Python, Go, C++, C, AWK, Forth, and Rust)
Google's gRPC is an RPC system that supports many languages, and is relatively widely used. I think its popularity is due to being used for parts of Docker and Kubernetes. I think gRPC is mostly fine, but it is surprisingly easy to screw up by misconfiguring it. Part of that is because RPC systems are challenging to…
Running Wayland on Linux in 2021
This post is part of a larger effort you can view over here: https://osblog.stephenmarz.com .
The run-time speed and memory usage of programs written in Rust should about the same as of programs written in C, but overall programming style of these languages is different enough that it's hard to generalize their speed. This is a summary of where they're the same, where C is faster, and where Rust is faster.
Ever since the Pi 2 model B went to a 4-core processor, disk IO has often been the primary bottleneck for my Pi projects. You can use microSD cards, which aren't horrible, but... well, nevermind, they're pretty bad as a primary disk. Or you can plug in a USB 3.0 SSD and get decent speed, but you end up with a cabling…
