As previously mentioned on InfoQ, Oracle had proposed JEP 248, about making G1 the default garbage collector, to be included in the list of JEPs targeting Java 9; recently, Oracle has confirmed such decision and made it official. The decision triggered a lengthy debate in the HotSpot’s email discussion list, which concluded with a provision to defer the change if G1 proves not to be fully ready.
Oracle is considering including JEP 248, making G1 the default garbage collector on server configurations, into the list of JEPs targeting Java 9. The decision has triggered some debate among the Java community, with many arguing that the CMS collector could have been more suitable.
Ruby 2.2.0, released on December 25th, is the gift rubyists got for Christmas. Highlights include several garbage collection (GC) improvements. There is a new incremental GC algorithm and symbols are now garbage collectable. Ruby also got a collection of minor improvements on the core classes and its standard library.
At Google I/O 2014, presenters Brian Carlstrom, Anwar Ghuloum, and Ian Rogers (all from Google) discussed ART (the Android RunTime). ART replaces Dalvik as the default platform for the next Android release. (A preview of the next Android release, termed Android L, is available as a download for developers. Android L will go public sometime in the fall.)
The Netty Project released the first version of Netty 4 in July. It has significant performance improvements primarily from reducing garbage collection overhead. Integrating Netty 4 at Twitter has led to a five times performance gain, but with some costs.
After more than two years, the Rubinius team has released version 2.0 which brings improved multi-threading support and implements the upcoming Ruby 2.1.
Charles Nutter, one of the lead developers of JRuby, announced the release of version 9000 (9K) in 2014. The new release targets the same feature set as Ruby MRI 2.0 and possibly 2.1 as well. Better performance, concurrency support and overall availability and portability provided by the use of the JVM can make this version suitable for production systems.
Ruby’s creator announced the move to generational garbage collection in Ruby 2.1 in what is expected to be an important performance boost for the language. The announcement took place during Barcelona Ruby Conference where Ruby’s GC was singled out as a major pain point in large scale Ruby deployments.
It’s been pretty quiet on the Mono front, but a few interesting things have been announced. The most notable is the adoption of .NET 4.5 for the mobile profiles and the introduction of a concurrent GC to Mono’s SGen garbage collector.
MonoDevelop now has integrated support for NuGet while the Mono project sees various improvements with release 3.0.3.
Microsoft will release .NET Compact Framework 3.9 (NETCF 3.9) in the upcoming build of Windows Embedded Compact 2013 with improved start-up time, enhanced memory utilization, Visual Studio 2012 support and new garbage collector.
Twitter's infamous Fail Whale was absent on US presidential election day, even as Twitter's servers were handling a serge of 327,452 "tweets" per minute. The firm was able to handle this level of traffic thanks in part to a gradual shift away from Ruby to Java and Scala
Ruby 2.0's release manager Yusuke Endoh announced the first preview release of Ruby 2.0 and a targeted release in February 2013. InfoQ talked to Yusuke to learn more about the big new features of Ruby 2.0 (Refinements, keyword arguments, Enumerator#lazy, and more) and what users need to know when upgrading.
Azul Systems have announced that they are making their pauseless Zing JVM freely available to Open Source developers and projects for use in development and testing.
With over 33% of the market share for US web searches, the servers that power Bing and Yahoo represent one of the largest .NET 4.5 RC applications in continuous production use. The close work between Microsoft’s Bing and .NET teams have resulted in a set of enhancements that should prove useful to anyone running large scale .NET servers.