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After 5 days, my OS doesn't crash when I press a key
Day 37: After 5 days, my OS doesn't crash when I press a key
New
The latest blog posts to take off on Hacker News. 6,950 posts.
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A Testament to X11 Backwards Compatibility
I recently scored a Hewlett Packard 1670A Deep Memory Logic Analyzer and I finally had a chance to fire it up. This unit dates back to 1992 ...
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On programming without malloc
Day 36: On programming without malloc
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Intel i7 loop performance anomaly
Recently I've been doing some benchmarking and came upon a very surprising behavior from a number of different Intel i7 CPUs (it manifests on Sandy Bridge and Haswell desktop-class CPUs as well as Sandy Bridge-EP Xeon CPUs).
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Linux memory manager and your big data
Citus gives you all the greatness of Postgres plus the superpowers of distributed tables. By distributing your data and queries, your application gets high performance—at any scale. The Citus database is available as open source and as a managed service on Azure.
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Boundaries
This talk is about using simple values (as opposed to complex objects) not just for holding data, but also as the boundaries between components and subsystems. It moves through many topics: functional programming; mutability's relationship to OO; isolated unit testing with and without test doubles; and concurrency, to…
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MySQL 5.7: over 1M queries/sec on a single machine
Last week, during Tomas ' keynote at MySQL Percona Live Conference in London we announced as one of "previews" of the following MySQL 5.7 release(s) -- an over 1,000,000 Query/sec result obtained with InnoDB Memcached plugin on a Read-Only workload. This article here is just to confirm the announced results without…
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Booting to Rust
A couple nights ago I was looking over the UEFI spec, and I realized it shouldn't be too hard to write UEFI applications in Rust. It turns out, you can, and her…
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How statically linked programs run on Linux
In this article I want to explore what happens when a statically linked program gets executed on Linux. By statically linked I mean a program that does not require any shared objects to run, even the ubiquitous libc . In reality, most programs one encounters on Linux aren't statically linked, and do require one or…
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Why Do Companies Still Use Microsoft Windows For Displays?
As I was exiting Oxford Railway Station, I glanced at this screen showing the bus departure times. Notice anything odd about it? sigh Yet again someone has shoehorned Microsoft Windows into a product it is completely unsuitable for. Why does a screen which displays a fairly basic set of information need to be running…
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ZeroMQ is just sockets
Kim: Yeah, right. It's just sockets . Course, it's totally portable so you don't have to handle all the weird stuff different operating systems ask you to do.
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How I Got a 2x Speedup With One Line of Code
If you had asked me whether or not it was possible to get a 2x speedup for my LazySorted project by adding a single line of code, I would have told you "No way, substantial speedups can really only come from algorithm changes." But surprisingly, I was able to do so by adding a single line using the __builtin_prefetch…
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Bytecode
What is the most commonly used bytecode language in the world? Java (JVM Bytecode)? .NET (CLI)? Flash (AVM1/AVM2)? Nope. There’s a few that you use every day, simply by turning on your computer, or tablet, or even phone. You don’t even have to start an application or visit a webpage.
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Valgrind Release 3.9.0
Official Home Page for valgrind, a suite of tools for debugging and profiling. Automatically detect memory management and threading bugs, and perform detailed profiling. The current stable version is valgrind-3.28.0.
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Writing a FUSE filesystem in Python
If you’re a regular reader, you might have noticed that I’ve been on a quest for the perfect backup program , and ended up writing my own encryption layer over bup.
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Readings in distributed systems
This post is a work in progress.Inspired by a recent purchase of the Red Book, which providesa curated list of important papers around database systems, I’ve decidedto begin assembling a list of im...
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Fixing Unix Filenames (2012)
This article will try to convince you that adding some limitations on legal Unix/Linux/POSIX filenames would be an improvement. Many programs already presume these limitations, the POSIX standard already permits such limitations, and many Unix/Linux filesystems already embed such limitations so it'd be better to make…
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Seagate just reinvented the disk interface using Ethernet
There’s no doubt that cloud computing is the future of IT infrastructure. Its scalability, ease of access and capacity for analysing vast amounts of data has made it integral to how businesses, organizations, and end-users use the internet.
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Profiling Go Programs
How to use Go's built-in profiler to understand and optimize your programs.
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Debugging a Live Saturn V
Writing and photos by Brennan Moore
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Incremental Garbage Collector in PyPy
Hello everyone. We're pleased to announce that as of today, the default PyPy comes with a GC that has much smaller pauses than yesterday...