InfoQ Homepage Performance & Scalability Content on InfoQ
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AppDynamics Lite 2 Released - Adds Monitoring Support for Free
Application Performance Measurement (APM) vendor AppDynamics has released AppDynamics Lite version 2.0, bringing new features from their commercial product into the free version.
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ORM Profiler Analyzes Data Access Performance
Solutions Design has released ORM Profiler, a tool meant to help improve data access layer performance. It tracks and logs ADO.NET calls so that developers can analyze their data access and discover potential problems.
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New Relic Offers Real-time Performance Monitoring for Heroku Java users
New Relic is bringing its well-regarded web application performance service to Java applications running on Heroku's PaaS. The add-on is offered in two versions, a free standard version, and a professional subscription service currently costing $0.06 per dyno hour. New Relic have also announced Python support for their stand-alone product.
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iisnode: Node.js for Internet Information Server
The iisnode project is a module that adds Node support to Internet Information Server 7.0 and later. The primary role of IIS is to act as an application server for Node, much in the same way that it does for classic ASP and ASP.NET. Developers familiar with these technologies will find the feature list to be quite familiar.
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Google Native Client Makes Its Debut in Chrome 14
Google Native Client has been included in Chrome 14 Beta, on its way to become a technology supported in production.
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Windows Server AppFabric adds Read-Through and Write-Behind Support
The new Read-Through and Write-Behind support in AppFabric 1.1 allow developers to improve performance while at the same time reduce the complexity of their applications. This is done by moving the logic for reading from and writing to the database into the caching server itself. Other improvements include lazy-loading of session state information and support for ASP.NET output caching.
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Ruby 1.9.3 Preview 1 Released, Improves GC Pauses With Lazy Sweep GC
Ruby 1.9.3 Preview 1 is out and brings new features to the standard library and improvements such as the new lazy sweep GC. InfoQ talked to Narihiro Nakamura about the lazy sweep GC and looks at Ruby 1.9.x adoption.
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Refactoring and Profiling Python with Visual Studio
Microsoft’s Developer Division has released a release candidate of Python Tools for Visual Studio. In addition to supporting refactoring in CPython and IronPython, this release offers support for MPI (Message Passing Interface) and Microsoft HPC (High Performance Computing). Visual Studio Ultimate owners also get a profiler for CPython.
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NumPy and SciPy for .NET
As part of the Python Tools for Visual Studio project the well-known NumPy and SciPy libraries were ported to .NET. The port, which combines C# and C interfaces over a native C core, was done in such a way that all .NET languages can take advantage of it.
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GPU.NET 2.0 Brings HPC to Linux and Mac
GPU.NET 2.0 supports Mono, enabling building and deploying computational intensive applications for Linux and Mac OS X along the already supported Windows.
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MVP Erland Explores SQL Server Performance Concepts
In "Slow in the Application, Fast in SSMS?", SQL Server MVP, Erland Sommarskog, explores the various things that affect Query Plan, compilation of Dynamic SQL and other things that ultimately affect your SQL Server Database Performance. He covers various concepts and scenarios like parameter sniffing, query plan caching, Blocking, saved settings, issues with linked servers and more.
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Barrelfish Is a Multikernel OS for Multicore Heterogeneous Hardware
The Microsoft and ETH Zurich research teams have published the source code of Barrelfish, a multikernel operating system for the multicore heterogeneous hardware of the future.
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Introducing the MVC Mini Profiler from Stack Exchange
Stack Exchange has released the ASP.NET MVC profiler that is used by Stack Overflow and its sister sites. MVC Mini Profiler is an internal profiler specially designed to support database-backed websites.
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Explaining .NET’s Barrier Class
With the increased emphasis on multi-core systems an understanding of parallel and concurrent programming is more important than ever. Fortunately .NET 4 has made a lot of advances in the types of synchronization primitives available to developers. One such primitive is the Barrier, which Emad Omara uses to implement a parallel merge sort.
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Asynchronous Patterns in ASP.NET Web Forms vNext
Asynchronous programming is all the range these days and for good reason, when properly used it can significantly improve the throughput of I/O bound applications. And while some may think this of the realm of new and esoteric languages, even Web Forms is getting in on the game.