InfoQ Homepage Performance & Scalability Content on InfoQ
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Erlang and Ruby Roundup: Vertebra, Scaling with Fuzed, Github
Recently a few popular Ruby projects have started using Erlang. We look at how EngineYard's Vertebra, Powerset's Fuzed and recently Github make use of Erlang.
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37signals Uses New Relic's Rails Performance Monitoring Solution
New Relic announced that 37signals uses their Ruby on Rails performance management solution to find problematic areas in their applications. David Heinemeier Hansson confirmed that they achieved a 50% speedup in certain actions.
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New Java Concurrency Feature: Phasers
A new type of concurrency barrier called 'Phasers' has been introduced into JSR-166y, scheduled for inclusion in Java SE 7.
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Metaprogramming Roundup: Speed, Ruby Macros, Screencasts
A look at what to watch out for in metaprogramming when it comes to speed, and: how ParseTree can be used to implement LISP/Scheme-style Macros in Ruby and avoid some of the issues of Open Classes.
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Article: Do Java 6 threading optimizations actually work? - Part II
In part 2 of "Java 6 threading optimizations" article series, author Jeroen Borgers examines various threading optimizations and JVM arguments to manage them. He also talks about factors like On Stack Replacement (OSR), Heap Management and Lock object data size which could significantly affect the performance of multi-threaded java applications.
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Kilim - actors and message passing in Java
Message passing and the actor model of concurrency is one promising way for the massive parallelization needed to utilize current and especially future CPUs. Erlang has it built in from the start and Scala incorporated the Scala Actor library into it’s framework. But there is also a pure Java solution - Kilim.
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EventMachine: Fast and Scalable Event-Driven I/O Framework
EventMachine is an event-driver framework for network and concurrent programming, based on the Reactor design pattern. We talked to EventMachine developer Francis Cianfrocca about the current developments and the benefits of event-driven programming.
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Excelsior JET 6.4: Smaller, Faster, More Secure Java
Since the beginning of time Java applications have been battered with complaints about startup time, memory footprint, performance and security. Recently Sun started to address some of the issues by introducing the Consumer JRE. However, Excelsior JET is a product which provides their own spin on solving these problems.
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The multicore crises: Scala vs. Erlang
There has been a somewhat heated debate about Scala vs. Erlang on the blogosphere recently. The future will be multi-cored, and the question is how the multi-core crises will be solved. Scala and Erlang are two languages that aspire to be the solution, but they are a bit different. What are the pros and cons with their approaches?
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Grizzly and the New Atmosphere Comet Framework: Q&A with Project Lead Jean-Francois Arcand
The Grizzly framework is used in multiples products like GlassFish, Sailfin, RESTlet, OpenESB and many more, where it enables developers to write scalable server applications, by leveraging the Java New I/O API (NIO). Atmosphere, an evolution of Grizzly, is a POJO based framework that aims to bring Comet to the masses. Jean-Francois talks to InfoQ about this new development.
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Article: Do Java 6 threading optimizations actually work?
Features like biased locking, lock coarsening, lock elision by escape analysis and adaptive spin locking are all designed to increase concurrency by allowing more effective sharing amongst application threads. But do they actually work? In this two part article, Jeroen Borgers explores these features and attempt to answer the performance question with the aid of a single threaded benchmark.
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RAM is the new disk...
Jim Gray, a man who has contributed greatly to technology over the past 40 years, is credited with saying that memory is the new disk and disk is the new tape. With the proliferation of "real-time" web applications and systems that require massive scalability, how are hardware and software relating to this meme?
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Introducing the Ruby Benchmark Suite
Antonio Cangiano started the Ruby Benchmark Suite project, which aims to collect a comprehensive set of benchmarks that users and implementers of Ruby can use to compare different implementations. We talked to Antonio about his plans and he gave us a timeframe for the next Ruby shootout.
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Interview: Avi Bryant on MagLev and GemStone
Avi Bryant talks about working on MagLev, a Ruby implementation built by GemStone. Avi explains the reasons for MagLev, the merits of GemStone's distributed OODB features, and more
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Need to Scale Fast? Just Re-Architect it!
The team at Delores Lab talk about lessons learned when their their site was featured on the Yahoo! home page, going from 500 to 100,000 visits overnight!