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Systems & Performance

The most popular blog posts about systems & performance on Hacker News. 498 posts.

2019
481

The speed of BGP network propagation

At the end of March 2019 I did a talk at the INEX’s (Ireland’s biggest internet exchange point) Annual General Meeting. I was supposed to record it, however in a brief panic due to HDMI not working on my laptop I forgot to start a recording of it. Since people found it interesting I figured I would turn it into a blog…

484

ZFS on Linux still has annoying issues with ARC size

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…

486

Anatomy of a High-Performance Convolution

It's no surprise that modern deep-learning libraries have production-level, highly-optimized implementations of most operations. But just what is the black magic that these libraries use that we mere mortals don't? What exactly does one do to "optimize" or accelerate neural networks operations?

490

Coreboot 4.11

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

491

PulseAudio Under the Hood (2017)

I’m working on the Roc Toolkit open-source project, a development kit for realtime audio streaming over the network. You can read more about the project in these two articles: 1, 2. We decided to implement a set of PulseAudio modules that will allow PulseAudio to use Roc as a network transport. Many Linux distros…

496

The largest Git repo on the planet

It’s been 3 months since I first wrote about our efforts to scale Git to extremely large projects and teams with an effort we called “Git Virtual File System”. As a reminder, GVFS, together with a set of enhancements to Git, enables Git to scale to VERY large repos by virtualizing both the .git folder […]

497

Collapse OS — Bootstrap post-collapse technology

I expect our global supply chain to collapse before we reach 2030. With this collapse, we won't be able to produce most of our electronics because their production depends on a very complex supply chain that we won't be able to achieve again for decades (ever?).