InfoQ Homepage Performance & Scalability Content on InfoQ
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Presentation: Ian Flint Explains Yahoo! Communities Architectures
In this presentation, Ian Flint, Director of Operations for Bix, Yahoo!’s online contest service, tries to explain the infrastructure and architecture employed by Yahoo! to keep going a multitude of servers running of different platforms and offering different services.
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Ruby FFI Brings Native Library Access to JRuby, MRI
The Ruby FFI library allows to access native code loaded from shared libraries. Created for Rubinius, it was recently ported to JRuby, MRI (1.8 and 1.9). Ruby FFI 0.2.0 has now been released.
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JXInsight 5.7 Supports Activity Based Metering Solution and JMX Integration for Java Applications
The latest version of JXInsight, an application performance monitoring software, supports activity based metering solution and JMX integration for Java applications. JInspired development team has recently announced the availability of JXInsight 5.7 version.
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RubyConf'08 Videos: Ruby VMs: Internals of YARV, Rubinius, MagLev
The videos from RubyConf '08 are available. We looked at the Ruby VM talks. Sasada Koichi, creator of the Ruby 1.9 VM, talks about the state of the VM, experiments with Ruby to C AOT, Ricsin and more. Evan Phoenix talks about the state of the Rubinius C++ VM. A detailed talk shows how MagLev is implemented. Also: MacRuby, JRuby, IronRuby, VM optimizations, RubySpec.
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Clustered JRuby - Transparent Clustering of JRuby with Terracotta
Gemstone's Maglev Demo at RailsConf sparked a lot of interest. A new project experiments with bringing this kind of transparent clustering to JRuby using Terracotta. We talked to Fabio Kung who's been experimenting with this approach.
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Interview: Dan Farino About MySpace’s Architecture
In this interview taken by InfoQ’s Ryan Slobojan, Dan Farino, Chief Systems Architect at MySpace, talks about the system architecture and the challenges faced when building a very large online community. Because MySpace is built almost entirely on the .NET Framework, Dan explains how a .NET product scales on hundreds of servers.
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Smooth HTTP Caching With Rack::Cache
The ways to cache a web application are numerous and often complex. Apart from the very basic page caching, Rails 2.2 introduced conditional GET through the use of HTTP headers: last_modified and etag. Following most of the internet standard caching section of RFC2616, Ryan Tomayko released Rack::Cache.
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What Is Wrong With Ruby's Net::HTTP?
Ruby's implementation of Net::HTTP has serious performance problems in the current version 1.8.6, caused by some implementation details. Luckily, both Ruby 1.8.7 and 1.9's implementation performs much better.
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256 Core SQL Server
With Windows Server 2008 R2 and SQL Server Kilimanjaro, it is expected that SQL Server will be able to support at least 256 logical processors.
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Mono: Going Beyond the Standard
The Mono team is perpetually playing catch-up to Microsoft. That's the party line, but is it still true? Recent advances suggest Mono may soon be challenging Microsoft on its own turf.
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Performance Monitoring Roundup: Rails Core and New Relic Cooperate, FiveRuns TuneUp Supports Merb
NewRelic announced a cooperation with the Rails Core team to improve Rails performance. An opt-in feature allows to make performance data available to the Rails Core team, which can use it to figure out Rails bottlenecks in real world Rails apps. Also: FiveRuns' TuneUp performance monitoring tools now supports Merb.
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Presentation: Rockstar Memcaching
In this presentation from RubyFringe, Tobias Lütke talks about memcached, the widely used caching solution. Tobias explains how to use it and gives some practical tips on what not to do.
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Terracotta 2.7 Release Supports GlassFish, Spring 2.5 and Distributed Garbage Collection
The latest version of Terracotta, an open source Java clustering framework, supports GlassFish, Spring 2.5 and new features like Automated High Availability Mode, Improved Distributed Garbage Collector (DGC) Performance and Visibility, and Cluster-Wide Runtime Statistics. Terracotta development team announced last week the availability of Terracotta 2.7 version.
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Anders Hejlsberg and Guy Steele on Concurrency and Language Design
An interview recorded at JAOO, Anders Hejlsberg and Guy Steele talk about concurrency in language design. Anders Hejlsberg is the chief architect of C#, creator of Turbo Pascal, and former chief architect of Delphi. Guy Steele is the creator of Scheme and is currently working on Sun's Fortress, a programming language that focuses on parallelism and mathematics.
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Presentation: Architecting for Latency
In this presentation, Dan Pritchett addresses latency issues in web applications that should be dealt with from the beginning when the system is designed. Dan offers some practical solutions to latency.