InfoQ Homepage Performance & Scalability Content on InfoQ
-
Ruby On... SAP: One More Step In The Enterprise With A New Ruby VM
SAP, the market share leader in CRM & ERP and second largest business software company is adopting Ruby as part of their SAP NetWeaver and SAP ERP 6.0 solution. ABAP Virtual Machine will be able to run Ruby Code through the Blue Ruby extension. With recent debates on Ruby VMs, we talked with Juergen Schmerder from SAP and Charles Nutter from Sun (JRuby).
-
Ruby Performance Roundup: GC Tuning, MagLev, MacRuby
Ruby's performance is being improved on all fronts. The GC gets help from REE's work on the COW GC and some tunings tips help to fine tune it. MacRuby's VM keeps on improving and tail call optimization was recently added. Also: news of a MagLev Beta in Q2.
-
Sun's Garbage First Collector Largely Eliminates Low Latency/High Throughput Tradeoff
In a recent podcast, James Gosling talked to Danny Coward about the significance of Sun's new Hotspot garbage collector Garbage First for developers of large-scale enterprise systems.
-
JRuby Roundup: Google App Engine Support, BiteScript, New Compiler
With JRuby 1.2 released, the JRuby community is working on new projects such as a new Ruby to bytecode compiler, a standalone JRuby parser and a first release of the bytecode generating DSL Bitescript. Also: JRuby works on Google App Engine's newly announced Java support.
-
Clojure Roundup: Clojure on CLR and Javascript, Terracotta, New Release
Clojure has attracted a lot of interest recently. A new project allows to use Clojure with Terracotta to run code across many JVMs, ports of Clojure to .NET and Javascript have become available, and a new Clojure release adds new features and makes sequences fully lazy.
-
MacRuby 0.5 Will Have Faster VM Based on LLVM,
The first results of performance work on the next version of MacRuby are now available in an experimental branch. A new VM based on LLVM is used and already shows significant speed improvements over earlier MacRuby versions.
-
Performance Engineering in an Agile Project
Performance Engineering is an important software development discipline that ensures that applications are architect-ed, designed, built and tested for performance. However, mostly in traditional projects the scope of performance engineering is limited to performance testing. This is a sure cause for concern.
-
FriendFeed Implements Schema-less Storage Atop MySQL
Brett Taylor, founder of FriendFeed, describes how they overcame some limitations of MySQL to handle problems of scaling and database evolution by implementing a "schema-less" storage system on top of MySQL.
-
Ruby XML Roundup: Hpricot 0.7, Stable Libxml-ruby and Nokogiri
A few recent software releases have improved Ruby's XML support. After last years release of the Nokogiri XML library, Hpricot 0.7 has now been released with performance improvements. Also, libxml-ruby, which is built on the same XML library as Nokogiri has been released and recently caught up with Nokogiri's speed.
-
Review: The Art of High Performance SQL Code
It is one thing to look at the execution plan for SQL Server queries, it is quite another to know what they mean. Grant Fritchey’s book, The Art of High Performance SQL Code: Part 1 Dissecting SQL Server Execution Plans, helps you get to that point.
-
Functional Programming and Coordination Data Structures
Coordination Data Structures, CDS, are a new set of thread-safe objects, mostly collections, planned for .NET 4. After about 6 months of silence, there have been some significant updates. Most notably is the inclusion of functional programming techniques to reduce the need for design patterns.
-
The Atmosphere Comet Abstraction Framework Releases Alpha
Atmosphere which started off as an evolution of Grizzly, is a POJO based framework that aims to bring Comet to the masses. This Comet Abstraction Framework released its first alpha version and InfoQ had a Q&A with its creator Jean-Francois Arcand about it.
-
Website Performance Analysis with neXpert
neXpert is an add-on to the popular Fiddler web debugging proxy. neXpert extends Fiddler's performance testing capabilities and simplifies the process of finding performance issues. Version 1.0 of neXpert is now available for download from Microsoft.
-
Concurrent Basic – A Declarative Language for Message-Based Concurrency.
Concurrent Basic represents a possible future for Visual Basic. Though based on work done in C# research languages such as Polyphonic C# and C-Omega, Visual Basic was chosen for its inherent predisposition towards declarative programming. The syntax is even inspired by VB’s declarative event handlers.
-
Article: SharePoint Object Model Performance Considerations
In this article, Andreas Grabner analyzes the performance implication of using the SharePoint Object Model, specifically displaying and editing lists, one of the most used SharePoint objects.