InfoQ Homepage Performance & Scalability Content on InfoQ
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AppDynamics Extends APM Solution to Include End User Monitoring
Application Performance Management Vendor AppDynamics announced the addition of End User Monitoring support to their product on March 7th. The AppDynamics agent uses JavaScript to record data from the browser and incorporates it with the data collected on the server side.
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Apache Celebrates 17th Anniversary with HTTP Server 2.4
Apache has released the HTTP Server version 2.4 with performance improvements, enhanced concurrency, asynchronous I/O support, lower resource footprint and others.
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Caucho's Resin Application Server Grew by a Factor of Almost Ten Last Year According to Netcraft
According to Netcraft Resin has been seeing strong growth in the last 12 months, seeing an almost tenfold growth from 480k hostnames in February 2011 to 4.7M in February 2012.
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Netty 3.3.1 Release Supports SPDY Protocol
The Netty 3.3.1 release adds support for SPDY protocol, which has been proposed for inclusion in http/2.0, fixes regression of Android support and reduces memory consumption of ZLib compression.
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Hybrid SQL-NoSQL Databases Are Gaining Ground
Hybrid SQL-NoSQL database solutions combine the advantage of being compatible with many SQL applications and providing the scalability of NoSQL ones. Xeround offers such a solution as a service in the cloud, including a free edition. Other solutions: Database.com with ODBC/JDBC drivers, NuoDB, Clustrix, and VoltDB.
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VMware Releases SQLFire 1.0
VMware releases SQLFire 1.0 a distributed SQL database geared towards high availability and horizontal scalability which offers table replication, table partitioning and parallel execution of queries.
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Bitmap Marking GC for Ruby Improves Memory Usage
The successor of Ruby 1.9.3 will replace the current Lazy Sweep Garbage Collector with a Bitmap Marking GC, which will significantly reduce Ruby's memory usage for parallel programs, similar to Ruby Enterprise Edition's copy-on-write-friendly GC. We talked with Narihiro Nakamura who implemented both the current Lazy Sweep and the Bitmap Marking GC.
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More on TPL Data Flow from Zlatko Michailov
We briefly interviewed Zlatko Michailov, author of the Guide to Implementing Custom TPL Dataflow Blocks.
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InfoQ Issues Call for Articles
InfoQ is announcing a call for articles and is encouraging practitioners and domain experts to submit feature-length (2,000 to 3,000 word) papers that are timely, educational and practical. Topics of interest include cloud architecture and development, Java, Agile, NoSQL, big data analytics, HTML 5 and mobile development. Author guidelines are now also available.
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Implementing Custom TPL Dataflow Blocks
Dataflow Blocks are the backbone of the .NET 4.5’s new high performance parallel processing library. And while they offer a lot of functionality out of the box, there will be times when a custom block is necessary. Zlatko Michailov has put together a document outlining the process and many of the traps you may encounter.
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An Update on Google Native Client
Beside C/C++, Google Native Client has added support for runtimes such as Mono, and a richer set of Pepper interfaces: accelerated 3D, full-screen, File IO, debugging, and others. New languages -Lua, TCL, OCaml- are being ported, and several major producers have ported their game engines or their games to NaCl.
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Task Parallel Library Improvements in .NET 4.5
Microsoft has been working on ways to improve the performance of parallel applications in .NET 4.5, specifically those using the Task Parallel Library. One of most impressive improvements is reducing the overhead for waiting on 100,000 tasks from 12,000,000 bytes to a mere 64 bytes.
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IBM’s Software Architecture for Astronomically Big Data
IBM has recently prototyped a software architecture that can deal with large amount of data flows. IBM’s software is built for the SKA telescope (Square Kilometre Array) and allows to automatically classify astronomical objects. Radio astronomer Melanie Johnston-Hollitt at Victoria University, Wellington , NZ, has collaborated with IBM for developing the system.
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ARM DS 5 CE Includes a Debugger and Analyzer of Android Native Code
ARM is offering a community edition of their Development Studio 5, containing a debugger and a performance analyzer of Android native code.
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Partial Caching and ASP.NET
When it comes to performance developers often need to turn to partial page caching. This report looks at the current state of caching in ASP.NET and introduces a new project for MVC 3 called MvcDonutCaching.