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New
The latest blog posts to take off on Hacker News. 498 posts.
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x86: Approaching 40 and still going strong
Intel Newsroom delivers the latest news, announcements, and updates. Stay informed on Intel innovations.
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Local and distributed query processing in CockroachDB
This blog post outlines how CockroachDB executes queries and shares Cockroach Labs' vision for future work on distributed processing.
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Rust Performance Pitfalls
Overall, Rust is pretty good for performance. Write the most simple, naive stuff, and it will usually run within a factor of two from optimized C/C++ code, without any further performance work on the code. With some investment into optimizations, matching or exceeding C’s speed should be possible in most cases…
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Performance Improvements in .NET Core
Update (2017/06/12): Added BenchmarkDotNet blog post link. There are many exciting aspects to .NET Core (open source, cross platform, x-copy deployable, etc.) that have been covered in posts on this blog before. To me, though, one of the most exciting aspects of .NET Core is performance. There’s been a lot of…
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APFS is not safe to use with names which have Unicode normalisation issues
APFS is not currently safe to use with names which might have Unicode normalisation issues – which means it is only safe with a limited ASCII character set.
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Linux Bridge – How it works
developer. curious. learner
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Using select(2) the right way
This started out as a Hacker News comment about a blog post about select being fundamentally broken After that the same author wrote why epoll is broken as well. I don’t know what problem author is trying to solve but let’s pick this one:
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Hunting Performance in Python Code: Measuring Memory Consumption
In this post I will talk about some tools that can help us solve a painful problem in Python, especially when using PyPy: memory consumption. Why are we concerned with this in the first place? Why …
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Compiler Optimizations are Awesome
Another reason for optimizing compilers: It allows us to write simple and obvious code expecting that the compiler will do the optimization. This both reduces the initial defect count and makes the code more maintainable in the long-run. Note that these are also often the simplest optimizations (e.g. a calculation…
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Damn Cool Algorithms: Log structured storage (2009)
Typically, if you're designing a storage system - such as a filesystem, or a database - one of your major concerns is how to store the data on disk. You have to take care of allocating space for the objects to be stored, as well as storing the indexing data; you have to worry about what happens when you want to extend…
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Mosaic: processing a trillion-edge graph on a single machine
Mosaic: Processing a trillion-edge graph on a single machine Maass et al., EuroSys’17 Unless your graph is bigger than Facebook’s, you can process it on a single machine. With the incep…
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An empirical study on the correctness of formally verified distributed systems
An empirical study on the correctness of formally verified distributed systems Fonseca et al., EuroSys’17 “Is your distributed system bug free?” “I formally verified it!R…
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Green Threads Explained
A short and self contained explanation that will guide you through an implementation of user threads.
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Writing a Unix Shell
Building your own UNIX shell in parts. This post focuses on the semantics of the fork system call.
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Introduction to ARM Assembly Basics
Welcome to this tutorial series on ARM assembly basics. This is the preparation for the followup tutorial series on ARM exploit development . Before we can dive into creating ARM shellcode and build ROP chains, we need to cover some ARM Assembly basics first.
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ReactOS 0.4.5 Released
ReactOS is a free, opensource reimplementation of windows
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View Counting at Reddit
Get the latest product news, company announcements, and user insights from the official Reddit blog.
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What's the difference between the com and exe extensions? (2008)
Practical development throughout the evolution of Windows.
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PostmarketOS: Aiming for a 10 year life-cycle for smartphones
Introduction post to postmarketOS , a touch-optimized, pre-configured Alpine Linux with own packages, that can be installed on smartphones. (Not usable for most people yet!)
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How Dirty COW works from the Linux kernel’s perspective
Dirty COW (CVE-2016-5195) is one of the most publicised local privilege escalation vulnerabilities in 2016, courtesy to its catchy name, cute logo, potential damages, and the fact that it was discovered in the wild by a researcher Phil Oester, meaning it was already under active use at the time of discovery.
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Writing a Fast JSON Parser
Several holidays ago, I got a bee in my bonnet and wrote a fast JSON parser whose parsed AST fits in a single contiguous block of memory. The code was small and simple and the performance was generally on-par with RapidJSON, so I stopped and moved on with my life.
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