AsmXml is a very fast XML parser and decoder for x86 platforms (Windows, Linux, BSD and Mac OS X). It achieves high speed by using the following features:

* Written in pure assembler
* Optimized memory access
* More than a parser: parsing and decoding at the same time (decoding means that attributes and elements are accessible in O(1) time)

To give an idea of the relative speed of AsmXml, the fastest open source XML parsers process between 10 and 30 MBs of XML per seconds while AsmXml processes around 200 MBs per seconds (on an Athlon XP 1800+).

At Urban Airship we recently published a blog post about scaling beyond 500,000 concurrent socket connections. Hitting these numbers was not a trivial exercise so we’re going to share what we’ve come across during our testing. This guide is specific to Linux and has some information related to Amazon EC2, but it is not EC2-centric. These principles should apply to just about any Linux platform.

Howto configure python to use mirrors for the pyPI python package index.

Ceph is a distributed network file system designed to provide excellent performance, reliability, and scalability.

What is Disco?

Disco is an open-source implementation of the Map-Reduce framework for distributed computing. As the original framework, Disco supports parallel computations over large data sets on unreliable cluster of computers.