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17019

Notes on Cruise's Pedestrian Accident

This is a set of notes on the Quinn Emanuel report on Cruise's handling of the 2023-10-02 accident where a Cruise autonomous vehicle (AV) hit a pedestrian, stopped, and then started moving again with the pedestrian stuck under the bottom of the AV, dragging the pedestrian 20 feet. After seeing some comments about this…

17022

A Tour of the Lisps

2023 seems to have been the year where I "made the rounds" of a number of major Lisps. There were several elements that lead to this. Firstly must have been my exposure to Elixir in 2022, which introduced me to the idea of debugging live systems and "staying in your program". Secondly must have been my chief complaint…

17027

On the Costs of Syscalls (2021)

It's well known that syscalls are expensive. And that software mitigations against CPU bugs (such as Meltdown) even have made them more expensive. But how expensive are they really? To begin to answer this question I wrote a small micro-benchmark in order to measure the minimal costs of a syscall …

17033

New Renderers for GTK

Recently, GTK gained not one, but two new renderers: one for GL and one for Vulkan. Since naming is hard, we reused existing names and called them “ngl” and “vulkan”. They are built from the same sources, therefore we also call them “unified” renderers. But what is exciting about them? A single source As mentioned...