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DirectX is coming to the Windows Subsystem for Linux
DirectX 12, NVIDIA CUDA, OpenGL and OpenCL acceleration are coming to the Windows Subsystem for Linux.
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The latest blog posts to take off on Hacker News. 533 posts.
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Windows Package Manager Preview
We are thrilled to announce the Windows Package Manager preview! If you’re already familiar with what a package manager is, feel free to skip this
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Python performance: it’s not just the interpreter
I have a particular view of Python performance from my experience on the Pyston project, and since this view is somewhat nonstandard I wanted to take some time to explain it and give a motivating e…
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What is a control system anyway?
Hopefully some signal in the noise.
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MMU gang wars: the TLB drive-by shootdown
T The problem Every once in a while I get involuntarily dragged into heat...
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OpenBSD on the Microsoft Surface Go 2
I used OpenBSD on the original Surface Go back in 2018 and many things worked with the big exception of the internal Atheros WiFi. This meant I had to keep it tethered to a USB-C dock for Ethernet or use a small USB-A WiFi dongle plugged into a less-than-small USB-A-to-USB-C adapter.
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A highly efficient, real-time text-to-speech system deployed on CPUs
Text-to-speech systems across the industry typically rely on GPUs or specialized hardware to generate state-of-the-art speech in real-time production. We solved core efficiency challenges to process one second of audio in 500 milliseconds — using only CPUs.
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The CPU Cost of Networking on a Linux Host
When evaluating networking for a host the focus is typically on latency, throughput or packets per second (pps) to see the maximum load a...
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Up to 4GB of Memory in WebAssembly
Thanks to recent work in Chrome and Emscripten, you can now use up to 4GB of memory in WebAssembly applications. That’s up from the previous limit of 2GB. It might seem odd that there was ever a limit - after all, no work was needed to allow people to use 512MB or 1GB of memory! - but it turns out that there are some…
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What developers should know about TCP
Why do you need to place your servers geographically close to your users? One of the reasons is to achieve lower latencies. That makes a lot of sense when you are sending short bursts of data that should be delivered as quickly as possible. But what about large files, such as videos? Surely there is a latency penalty…
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Optimising for Concurrency: Comparing the BEAM and JVM virtual machines
Explore the internals of the BEAM VM in comparison to the JVM, highlighting the significance of understanding these components.
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The logging framework isn't a bottleneck, and other lies your laptop tells you
Your laptop spends all day lying to you. If you want your code to run well on server hardware, best write it on server hardware.
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Linux containers in a few lines of code
Trying to figure out how Linux containers work by implementing them from scratch in C.
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AF_UNIX comes to Windows
Introduction: Beginning in Insider Build 17063, you’ll be able to use the unix socket (AF_UNIX) address family on Windows to communicate between Win32
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Linux is Most Used OS in Microsoft Azure – over 50 percent of VM cores
For the last few years, Microsoft has stated during event keynotes and in other places that Linux is a rapidly growing operating system (OS) being used within Microsoft Azure. They had proudly stat…
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RISC-V OS using Rust: Filesystems
I have taught operating systems at my university, so I will link my notes from that course here regarding the virt I/O protocol. This protocol has changed over the years, but the one that QEMU implements is the legacy MMIO interface.
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Improved vacuum in PostgreSQL 13
Vacuum is one of the sub-systems in PostgreSQL which gets improved with each release. I have checked past five releases and each has qu...
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Make LLVM Fast Again
Clang is an “LLVM native” C/C++/Objective-C compiler, which aims to deliver amazingly fast compiles […]
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Huawei HKSP Introduces Trivially Exploitable Vulnerability in the Linux Kernel
Huawei has seemingly stepped its foot into the kernel self-protection game with the release of HKSP. Absent any threat model and riddled with weaknesses, it also introduces a trivially exploitable local root vulnerability due to a complete lack of defensive programming.
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Understanding Raft Consensus
Recently I was digging deeper into Raft , an important algorithm in the field of distributed systems. Raft is a consensus algorithm , meaning that it is designed to facilitate a set of computers agreeing on a state of the world (more on exactly how the state of the world is represented later), even when communications…
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The Cost of JavaScript Frameworks
Tim Kadlec writes about performance, product management, and the web.
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An introduction to virtual memory
...and the crucial role it plays in modern operating systems.
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Initial Impressions of WSL 2
Soon the Windows May 2020 Update (20H1) will be released upon the world. This update will contain some nice UI improvements, but most relevant to me it allows Web Developers on Windows to upgrade to WSL 2. This is a significant milestone in the #davegoeswindows saga and it’s worth posting about what it means going…
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When Parallel: Pull, Don't Push
I’ve noticed a small pattern across a few of my projects where I had vectorized and parallelized some code. The original algorithm had a “push” approach, the optimized version instead took a “pull” approach. In this article I’ll describe what I mean, though it’s mostly just so I can show off some pretty videos…
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