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The cost of parsing JSON
The dominant costs of processing JavaScript are download and CPU execution time.
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 1,232 posts.
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The little ssh that (sometimes) couldn't
Preface This is a technical article chronicling one of the most interesting bug hunts I’ve had the pleasure of chasing down. At AdGear Technologies Inc. where I work, ssh is king. We use it for management, monitoring, deployments, log file harvesting, even some event streaming. It’s solid, reliable, has all the…
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O(n^2), again, now in Windows Management Instrumentation
I recently hit some multi-minute delays on my workstation. After investigating I found that the problem was due to a lock being held for five minutes, and during that time the lock-holder was mostl…
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DTrace for Linux 2016
DTrace for Linux 2016: announcing a major milestone: the final kernel capabilities have merged in Linux 4.9-rc1 to enhanced BPF (eBPF) to provide an advanced programmable dynamic tracer similar to DTrace.
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Futurelock: A subtle risk in async Rust
This RFD describes futurelock : a type of deadlock where a resource owned by Future A is required for another Future B to proceed, while the Task responsible for both Futures is no longer polling A . Futurelock is a particularly subtle risk in writing asynchronous Rust.
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Performance comparison: counting words in Python, Go, C++, C, Awk, Forth, Rust
Performance comparison of counting and sorting word frequencies in various languages (Python, Go, C++, C, AWK, Forth, and Rust)
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Attacking UNIX Systems via CUPS
Hello friends, this is the first of two, possibly three (if and when I have time to finish the Windows research) writeups. We will start with targeting GNU/Lin…
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Linux in a Pixel Shader – A RISC-V Emulator for VRChat
Linux in a Pixel Shader - A RISC-V Emulator for VRChat
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The Fully Remote Attack Surface of the iPhone
Posted by Natalie Silvanovich, Project ZeroWhile there have been several rumours and reports of f...
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Dissecting the Apple M1 GPU, Part IV
After beginning a compiler for the Apple M1 GPU , the next step is to develop a graphics driver exercising the compiler. Since the last post two weeks ago, I’ve begun a Gallium driver for the M1, implementing much of the OpenGL 2.1 and ES 2.0 specifications. With the compiler and driver together, we’re now able to run…
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V8: A Year with Spectre
The V8 team details their analysis and mitigation strategy for Spectre, one of the top computer security issues of 2018.
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WebVM: Server-less x86 virtual machines in the browser
We made a server-less virtual Linux environment that runs unmodified Debian binaries in the browser. This is powered by CheerpX, a WebAssembly virtualization platform. Feel free to play with it and report bugs: https://webvm.io
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The C10M problem
It's time for servers to handle 10 million simultaneous connections, don't you think? After all, computers now have 1000 times the memory as...
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Authenticated Boot and Disk Encryption on Linux
Posts and writings by Lennart Poettering
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When network is faster than browser cache (2020)
We assume that browser caches are near-instantaneous, but data shows that retrieving an object from cache can take hundreds of milliseconds!
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Branch predictor: How many “if”s are too many?
Is it ok to have if clauses that will basically never be run? Surely, there must be some performance cost to that...
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On WD Red NAS Drives
On WD Red NAS Drives - Data - Western Digital (WD) Corporate Blog
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What is Silverblue?
You may have heard about Fedora Silverblue, the next-generation desktop OS. This article gives you a more complete view about what it is and how it works.
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Introducing Windows Terminal
We are beyond excited to announce Windows Terminal! Windows Terminal is a new, modern, fast, efficient, powerful, and productive terminal application for
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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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What do you mean by “Event-Driven”?
Some notes on the different patterns that may be present when people talk about event-driven architectures.
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Better Compression with Zstandard
I think I first heard about the Zstandard compression algorithm at a Mercurial developer sprint in 2015. At one end of a large table a few people were uttering expletives out of sheer excitement. At developer gatherings, that's the universal signal for something is awesome . Long story short, a Facebook engineer…
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Announcing KataOS and Sparrow
We've open sourced several components for our secure operating system, called KataOS, on GitHub, as well as partnered with Antmicro