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Systems & Performance

The most popular blog posts about systems & performance on Hacker News. 2,560 posts.

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1172

Jepsen: Dgraph 1.0.2

2019-04-10: The long fork test used in this analysis contained a bug which caused it to (in many cases) fail to identify long fork anomalies—though we did find instances of long fork using other tests. We have re-checked Dgraph 1.0.13 with a corrected checker, and its long fork tests still pass.

1173

Fedora 23 released

It’s (approximately) Halloween, so you know what that means — new Fedora! The Fedora 23 release is here, and it’s better than ever before. We’re pleased to bring you the latest incarnations of the three main Fedora editions — Fedora Workstation, Fedora Cloud, and Fedora Server, each built with love by the Fedora…

1174

EC2 Serial Console

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…

1179

Autotuner: How to speed up your Rails app

Ruby’s garbage collector is designed to be adaptable, scaling from short Ruby scripts to running apps that serve millions of requests per second. While it’s designed to be adaptable, it may not work optimally for every use case. For this reason, Ruby’s garbage collector supports many parameters that can be used to…

1180

Qubes Air: Generalizing the Qubes Architecture

The Qubes OS project has been around for nearly 8 years now, since its original announcement back in April 2010 (and the actual origin date can be traced back to November 11th, 2009, when an initial email introducing this project was sent within ITL internally). Over these years Qubes h...