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GPU Video acceleration in the Windows Subsystem for Linux now available
Introduction In DirectX ❤ Linux - DirectX Developer Blog we wrote about DXCore & D3D12 support on WSLg and described OpenGL & OpenCL support by
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 555 posts.
212
Async message-oriented systems vs. REST for inter-microservice communications
Why was Mats created, what is the point of using message-based async RPC.
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Kafka vs. Redpanda performance – do the claims add up?
Apache Kafka has been the most popular open source event streaming system for many years and it continues to grow in popularity. Within the wider ecosystem there are other open source and source available competitors to Kafka such as Apache Pulsar, NATS Streaming, Redis Streams, RabbitMQ and more re
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Unpacking Elixir: Resilience
The nine nines. 99.9999999% of uptime. Whether the AXD301 actually deserves to be held up as a system of nine nines seems debatable. I am not particularly interested in that debate. Erlang has a strong record for reliability and a design intended to help you as a developer and operator achieve your nines. Maybe just…
215
Modern CPUs have a backstage cast
If you take someone with intermediate knowledge of computing in the right areas, and ask them how an x86 machine boots, they'll probably start telling you about how the CPU first comes up in real mode and starts executing code from the 8086 reset vector of FFFF:FFF0. This understanding of how an x86 machine boots has…
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What has changed in CPU cores in M3 chips?
Little seems to have changed in CPU cores in M3 chips, if you read reviews. Dig a bit deeper and there are major changes, as explained here.
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Shells are two things
Command languages and scripting languages are and should be different things.
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ECC RAM should be a human right
I am now a staunch advocate for ECC RAM, after the events of last week. You see, over the last several weeks my main desktop workstation has been misbehaving, with occasional freezing and crashing. After some diagnostics I began to suspect a faulty RAM module, and sure enough, upon performing a quick run of memtest86…
220
WASIX, the Superset of WASI Supporting Threads, Processes and Sockets
Today we are very excited to launch a new initiative that will start shaping the future of WebAssembly on both the browser and the server. WASI was ann...
221
Amiga Systems Programming in 2023
If you ever get a chance to look through the classic Amiga OS source-code still floating around some murky corners of the internet, it is a thing of beauty and astonishing capabilities. It’s an inspirational piece of computing history with unmatched capabilities for the time. Remember, this was all on a computer…
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I Built Linux from Scratch
Linux From Scratch or LFS is a project that provides and maintains a set of instructions of how to build your own Linux system from scratch. I am always curious to understand how things work ‘under the hood’, and since I’m a daily Linux user i decided to take on the challenge to try and complete building Linux From…
223
Using a Mac without a network connection
New version of ViableS runs in a sandbox, with no shared folders, and can now be isolated from networks. So how well does Ventura work without internet?
224
Very Long-Term Backup (2008)
The Long Now Foundation fosters long-term thinking. Our work encourages imagination at the timescale of civilization — the next and last 10,000 years — a timespan we call the long now.
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Learnings from kCTF VRP's 42 Linux kernel exploits submissions
Tamás Koczka, Security Engineer In 2020 , we integrated kCTF into Google's Vulnerability Rewards Program (VRP) to support researchers evalu...
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Understanding every byte in a WASM module
In my last post, we explored how to build WASM modules, both with and without WASI support, using Clang. In a comment on Reddit, it was mentioned that much of the setup I walked through in that post could be avoided by just leveraging Zig’s WASI supprt. This is a great point, and I would recommend doing the same. The…
227
Jailbroken iOS can't run macOS apps – I spent a week to find out why (2021)
I ran command line macOS tools, such as Bash and Geekbench, on a jailbroken iPhone by replacing iOS’s dyld shared cache (all of iOS’s code) with macOS’s. However, graphical apps will never work: macOS’s WindowServer won’t start, since iOS’s drivers are too different.
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How to speed up the Rust compiler
It has been five months since my last general update on the Rust compiler’s performance. Let’s see what has happened in that time.
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Setenv Is Not Thread Safe and C Doesn't Want to Fix It
You can't safely use the C setenv() or unsetenv() functions in a program that uses threads. Those functions modify global state, and can cause other threads calling getenv() to crash. This also causes crashes in other languages that use those C standard library functions, such as Go's os.Setenv ( Go issue ) and Rust's…
231
What's wrong with enterprise Linux
An examination of what is wrong with the Enterprise Linux model and a recommendation for a middle ground.
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Python, C, Assembly – Faster Cosine Similarity
From pure Python to AVX-512 assembly, optimizing cosine similarity reveals a 2,500x speedup through SIMD, FP16, and VNNI instructions on modern Intel CPUs.
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Using LD_PRELOAD to cheat, inject features and investigate programs
This post assumes some basic C skills. Linux puts you in full control. This is not always seen from everyone’s perspective, but a power user loves to be in control. I’m going to show yo…
234
Near-lossless image formats using ultra-fast LZ codecs
I think simple ultra-high speed lossy (or near-lossless) image codecs, built from the new generation of fast LZ codecs, are going to become ...
235
eBPF-based auto-instrumentation outperforms manual instrumentation
This blog shares the results of our performance tests creating OpenTelemetry traces with eBPF-based automatic instrumentation vs traditional instrumentation
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Emacs standing alone on a Linux Kernel
Nano How-To explaining how to setup a root file system with only emacs.
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How to get transactions between almost any data stores
How to get ACID transactions between almost any data stores, with the Epoxy protocol.
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The faker's guide to reading x86 assembly language
Assembly code scares people. There’s a good reason for that. For many people, writing code in assembly language seems equivalent to writing code in ancient dwarven runes, or calculating pi in roman numerals. The fact that RollerCoaster Tycoon was almost completely written in assembly language sounds almost too amazing…
239
OpenBSD PF versus FreeBSD PF
I encountered yet another discussion about OpenBSD PF versus FreeBSD PF . For those who are new to the discussion: OpenBSD developers created PF in 2001, and it rapidly improved to become the most approachable open source packet filter. FreeBSD ported PF over to its kernel in 2004, with occasional updates since. Today…
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Setting the TZ environment variable avoids thousands of system calls (2017)
In this article, you can find how setting the TZ environment variable can prevent thousands of system calls.