InfoQ Homepage Performance & Scalability Content on InfoQ
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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.
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Heroku Launches Postgres as a Standalone Service.
Until now, Postgres was only available to Heroku customers for use with Heroku platform apps. This new service can be used from anywhere and with any Postgres client. Apps can connect from Heroku, Google App Engine, Microsoft Azure, Cloud Foundry, EC2, or from your local computer while PostgreSQL is supported by most modern programming languages - including Perl, Python, Ruby, Scala ...
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Azul's Pauseless Garbage Collector Goes Native on Linux
Azul Systems have today announced Zing 5.0, eliminating their previous requirement for a hypervisor, and therefore bringing their pauseless JVM to unmodified 64-bit Linux for the first time.
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Accelerate SQL Server Performance With SafePeak’s Dynamic Database Caching
SafePeak is a plug-and-play Dynamic Database Caching Solution, designed to improve data access performance for Applications built on SQL Server. It offloads the read queries and stored procedures which perform “Select” by dynamically caching in-memory result sets, thereby reducing read response time and overall database load.
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Ruby 1.9.3: Improved Performance and Stability and BSD Licensed
The latest Ruby release 1.9.3 further improves the stability and performance of the 1.9 series and brings only few new features. Ruby's license changed to 2-clause BSD + Ruby License instead of GPLv2 + Ruby License.
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How Do You Tune Your Application For Performance?
StackExchange is built on the ASP.NET and SQL Server stack. Recently, Sam Saffron and Marc Gravell blogged about their experience identifying and solving a performance problem that was finally traced to the .NET GC GEN-2 objects. There is a lot to be taken away from their experience for everyone tuning performance for applications in production.