OO7J is a Java version of the original OO7 benchmark (written in C++). This project includes benchmarking Object Relational Mapping (ORM) tools. Currently there are implementations for Hibernate on PostgreSQL, MySQL, db4o and Versant databases. InfoQ and Roberto V. Zicari from ODBMS.ORG recently interviewed Pieter van Zyl, creator of the OO7J benchmark.
Azul's recently announced Zing product brings their Garbage Collector, which achieves both pauseless garbage collection and a high tolerance to the factors which typically impact collection and application responsiveness, to Java programs running on Intel and AMD based servers. This article takes a detailed look at how Azul has been able to achieve these design goals.
Boris Lublinsky presents an introduction to AVRO and evaluate its usage for Schema componentization, inheritance and polymorphism. He also discusses backward compatibility issues and AVRO solutions for this problem.
This article explores tuning techniques for Hibernate applications, focusing on poorly documented topics, such as inheritance mapping, second level cache and enhanced sequence identifier generators. 2
InfoQ takes a look at how a combo of Clojure and Google AppEngine (GAE) powers a new online project management tool, how Clojure integrates with GAE's key/value store, and the power of LISP. 5
This article explains the impact memory barriers, or fences, have on the determinism of multi-threaded programs. 2
Lan Vuong shows the benefits of asychronous batch updates to the data base (the write-behind pattern), instead of synhronous write-through updates typical in web apps. 8
In part two of InfoQ's interview with the FlightCaster team, we discuss scaling Rails on Heroku, the problems of integrating data from multiple providers and mobile smartphone applications.
This article presents a library supporting development of highly-scalable applications that take advantage of an underlying multi-core hardware. The library is part of the Amino Library Project. 10
FlightCaster, a flight delay prediction site, uses Clojure and Hadoop for the statistical analysis, with a Rails/Heroku frontend. We talked to Bradford Cross about Clojure and functional programming. 1
Microsoft and IBM have benchmarked against each other in an attempt to prove which platform is better: .NET or WebSphere. 12