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Write a toy strace and gdb
Being able to peek into a process is a very helpful thing when we want to fully understand how a program behaves.
New
The latest blog posts to take off on Hacker News. 6,949 posts.
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Say No to Paxos Overhead: Replacing Consensus with Network Ordering
Just say NO to Paxos overhead: replacing consensus with network ordering Li et al., OSDI 2016 Everyone knows that consensus systems such as Paxos, Viewstamped Replication, and Raft impose high over…
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Saving Data: Reducing the Size of App Updates by 65%
News and insights on the Android platform, developer tools, and events.
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Write a Shell in C (2015)
A tutorial on how to write a Unix shell in C.
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Chrome 55 uses 30% less memory than 54
Chrome 55 uses ~30% less memory for weather.com and reddit.com
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Support for better symlink handling in Windows 10
Overview Symlinks, or symbolic links, are “virtual” files or folders which reference a physical file or folder located elsewhere, and are an important feature built in to many operating systems, including Linux and Windows. The Windows’ NTFS file system has supported symlinks since Windows Vista. However, it hasn’t…
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Golang’s Real-Time GC in Theory and Practice
How the Golang concurrent GC achieves low latencies in real-time systems: a visualization of the algorithm and an empirical comparison with other languages.
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Introduction to strace
There will come a time when you will find yourself asking “What the heck is that process doing?”. To uncover the mysteries behind the behaviour of a process, we have a tool called strace .
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15 Years of Concurrency
Joe Duffy's Blog | Adventures in the high-tech underbelly
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Zero Cost Abstractions
Rust claims to enable abstraction without overhead. How does that claim hold up in practice?
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Developer Preview – EC2 Instances with Programmable Hardware
Have you ever had to decide between a general purpose tool and one built for a very specific purpose? The general purpose tools can be used to solve many different problems, but may not be the best choice for any particular one. Purpose-built tools excel at one task, but you may need to do that […]
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Breaking the Chain
Posted by James Forshaw, Wielder of Bolt Cutters.Much as we’d like it to be true, it seems ...
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Windows 10 in-place upgrades are a severe security risk
This is a big issue and it has been there for a long time. Just a month ago I finally got verification that the Microsoft Product Groups n...
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Beating the Compiler
An oft-repeated fact on programming forums these days is that a decent optimizing compiler will always beat a puny human's attempt at hand-written assembler. There are rare cases, like MPEG decoders, where making good use of the SIMD instructions can allow assembly to massively beat the compiler. But generally you'll…
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Learning to Read X86 Assembly Language
Writing assembly language is something best left for the experts. To write code that runs directly on your microprocessor you need to know how memory segmentation works, what the intended use of each register is, how codes executes in real and protected modes and much, much more. And, of course, modern compilers will…
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My Distributed Systems Seminar's Reading List for Spring 2017
Below is the first draft list of papers I plan to discuss in my distributed systems seminar in the Spring semester. If you have some suggest...
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Syscall Auditing at Scale
If you are are an engineer whose organization uses Linux in production, I have two quick questions for you: 1) How many unique outbound TCP connections have your servers made in the past hour? 2) Which processes and users initiated each of those connections? If you can answer both of these questions, fantastic! You…
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Tutorial – Write a System Call
Stephen Brennan's personal website and blog.
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A Magnetized Needle and a Steady Hand
Now they’ve gone an done it. An unidentified agency has spread a potent computer virus across all the world’s computers and deleted the binaries for every copy of every software development tool. Even the offline copies — it’s that potent.
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Kaspersky OS
At last – we’ve done it! I’ve anticipated this day for ages – the day when the first commercially available mass market hardware device based our own secure operating system landed on my desk.
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Do not change Linux files using Windows apps and tools
Update - May 2019 Windows 10 version 1903 has now been released and allows an important update to WSL that allows Windows applications and tools to access
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ReactOS 0.4.3 Released
ReactOS is a free, opensource reimplementation of windows
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Rust and the Future of Systems Programming [video]
If you’re a regular reader of Hacks, you probably know about Rust, the ground-breaking, community-driven systems programming language sponsored by Mozilla. I covered Rust on Hacks back in July, to ...