This article describes "the hardest topic in OSGi, how to deal with service dynamics," based on personal experience. Two factors, concurrency and direct service references, make the problem "fiendishly hard." An import and an export policy should form a comprehensive doctrine for dealing with service dynamics and the article explores two export policies with their corresponding doctrines.
Jeroen Borgers examines if biased locking, lock coarsening, lock elision by escape analysis and adaptive spin locking techniques in the latest JVMs actually work in highly-concurrent apps.
Jeroen Borgers examines if biased locking, lock coarsening, lock elision by escape analysis and adaptive spin locking techniques in the latest JVMs actually work in highly-concurrent apps. 16
Simon Ritter explains the vision and capabilities of the Real-Time Java specification (RTSJ), which will bring guaranteed response times regardless of GC. 3
Finding performance bottlenecks can be a difficult task and it can get more difficult as our applications grow in size. The Box is a methodology tool that focuses us efforts to improve performance. 6
Orion Letizi goes in-depth on OpenTerracotta, an open-source JVM-level clustering solution that can cluster single-jvm apps with no code changes. 10
Using both the JVM and the CLR inside the same operating system process is a relatively trivial matter, since any process is capable of loading just about any shared library. Ted Neward shows how. 2
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