InfoQ Homepage Performance & Scalability Content on InfoQ
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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.
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WebP’s Adoption Remains Unclear Despite New Improvements
Google has enhanced WebP, their open source image compressing format with higher image quality, progressive decoding, reduced pixelation along edges, and JNI support. Alpha channel support will be added soon, along with more speed improvements. The format is currently supported only by Google and Opera.
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Azul's Zing 4.1 Virtualisation System for Java Gets up to 80% Better Performance Than Zing 4.0
Azul Systems' Zing 4.1, shipping in the next week, is 80% more performant than the already impressive Zing 4.0, according to the vendor. InfoQ spoke to Vice President of Technology and CTO for Azul Systems, Gil Tene, to find out more about how this has been achieved.
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SAP's Cloud Strategy Evolves With In-Memory Computing Appliance
SAP announced multiple cloud offerings at SAP Sapphire 2011 around High-Performance Analytic Appliance(HANA) which has occupied front stage in SAP's innovation and strategy over the past year. In this news item we cover basic questions around HANA's architecture, performance and future roadmap.
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Scala 2.9.0 Introduces Parallel Collections
The latest Scala release 2.9.0 introduces parallel collections to easily utilize multicore processors. Other new features are an improved REPL, ScalaDoc and new packages for interacting with the operating system.
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Akka 1.1 Released, Brings Many Improvements to Futures and Performance, Reduces Dependencies,
Akka 1.1 was released with many improvements in performance, Futures and more. The basic Akka also has no dependencies except for Scala 2.9. InfoQ caught up with Jonas Bonér to talk about the current state and the future of Akka.
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Scala & Akka Creators Launch Typesafe Company for Multicore and Cloud Architectures
Scala creator Martin Odersky joined forces with Jonas Bonér, the creater of Akka, and launched Typesafe. With $3 million Series A financing led by Greylock Partners, Typesafe offers commercial support for enterprise development of multicore and cloud architectures.