Microsoft has published a paper named “Performance Tips For Metro Style XAML Apps”. This includes several suggestions for remaining responsive, ensuring fluid animations, improving startup time, consuming lesser resources and more. We present a summary here.
The first preview release of the upcoming JRuby 1.7 defaults to Ruby 1.9 runtime mode and is much faster thanks to Java 7's invokedynamic. We talked to Charles Nutter to learn more about the future of JRuby on Java 7, Fibers and his move to Red Hat.
Phusion has released a preview release of their upcoming 3.2 version of Phusion Passenger. Version 3.2 comes with a re-written ApplicationPool, I/O handling is now event-driven and the Python support became a first-class citizen.
LinkedIn engineering releases SenseiDB 1.0.0, a NoSQL database focused on high update rates and complex semi-structured search queries, already used in production by LinkedIn in its search related pages (e.g. People/Company search)
Version 2.0 of Hazelcast, a Java-based caching, clustering and data distribution solution, has recently been released. As part of this, the product is now offered in both commercial Enterprise and free open-source Community Editions.
Apache has released the HTTP Server version 2.4 with performance improvements, enhanced concurrency, asynchronous I/O support, lower resource footprint and others.
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.
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.
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.
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.
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.
We briefly interviewed Zlatko Michailov, author of the Guide to Implementing Custom TPL Dataflow Blocks.
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.
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.