The latest blog posts to take off on Hacker News. 190 posts.
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…
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.
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.
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.
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...
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…
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.
How to use Go's built-in profiler to understand and optimize your programs.
Writing and photos by Brennan Moore
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...
In the previous article on ARM64 , I mentioned that one advantage of the new architecture is the fact that it has twice as many registers, allowing code load data from RAM less often, which is much slower. Reader Daniel Hooper asks the natural question: just why is RAM so much slower than registers?
Just weeks after the first Firefox OS phones hit the market, an update is being made available adding new features, support for a number of new languages and significant performance ...
Software optimization resources | E-mail subscription to this blog | www.agner.org
malloc() is extremely convenient because it is generic. It does not make any assumptions about the context of the allocation and the deallocation. Such allocators may just follow each other, or be separated by a whole job execution. They may take place in the same thread, or not… Since it is generic, each allocation…
Lots of important MemShrink stuff has happened in the last 27 days: 22 bugs were fixed , and some of them were very important indeed.
