Serialization Algorithm Revealed — JW Article

Serialization is the process of saving an object’s state to a sequence of bytes; deserialization is the process of rebuilding those bytes into a live object. The Java Serialization API provides a standard mechanism for developers to handle object serialization. In this tip, you will see how to serialize an object, and why serialization is […]

Atomic*.lazySet is a performance win for single writers

Summary: For programs respecting the Single Writer principle the Atomic*.lazySet method and it’s underlying Unsafe.putOrdered* intrinsic present a performance win in the form of significantly cheaper volatile writes. [UPDATE 20/12/2016: here’s a more recent definition and references on what lzySet/putOrdered is] A few months ago I attended Martin Thompson’s excellent Lock Free Algorithms course, the […]

Simple Binary Encoding

Financial systems communicate by sending and receiving vast numbers of messages in many different formats. When people use terms like “vast” I normally think, “really..how many?” So lets quantify “vast” for the finance industry. Market data feeds from financial exchanges typically can be emitting tens or hundreds of thousands of message per second, and aggregate […]