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What exactly is RTSJ, the Real-Time Specification for Java?

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问题 What exactly is the Java Real Time Specification? That is, how does it differ from the "regular" Java SE or Java EE specifications? 回答1: At its core, real-time computing is about predictability -- the knowledge that the system will always perform within the required time frame. Basically, this is something you won't be able to achieve with the regular VM (and its stop-the-world GC amongst other things), hence the need for another specification: The Real-Time Specification for Java (RTSJ), or

Who Uses Real Time Java? [closed]

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问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 years ago . I noticed that Real Time Java 2.2 was released back in September, seems to have come a long way from when I last looked at it. However, does anybody know of any real world uses, commercial or academic to date? http://java.sun.com/javase/technologies/realtime/index.jsp 回答1: I

Who Uses Real Time Java? [closed]

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I noticed that Real Time Java 2.2 was released back in September, seems to have come a long way from when I last looked at it. However, does anybody know of any real world uses, commercial or academic to date? http://java.sun.com/javase/technologies/realtime/index.jsp andersoj I offered some publicly-disclosed users of real-time Java in answer to another question ; I'll reproduce here: The Real-Time Specification for Java now has several commercial-grade implementations: Sun/Oracle's JavaRTS (now unavailable , it appears Oracle has disbanded the JavaRTS team and made the product unavailable,

Which real-time (RTSJ) JVM is most preferred?

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There seems to be only a handful of JVMs that are implementations of the Real-Time Specification for Java (RTSJ) . The Sun/Oracle Java Real-Time System is over $6000 and IBM's real-time WebSphere is over $7000, so many Java developers may never have the opportunity to use either of them. Oracle's JRockit seems to be a free real-time Java implementation with predictable, deterministic behavior, although I am not sure, since their documentation is pretty heavy on marketing language. Other smaller real-time JVMs seem risky by virtue of being developed by small organizations and having smaller

Which real-time (RTSJ) JVM is most preferred?

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问题 There seems to be only a handful of JVMs that are implementations of the Real-Time Specification for Java (RTSJ). The Sun/Oracle Java Real-Time System is over $6000 and IBM's real-time WebSphere is over $7000, so many Java developers may never have the opportunity to use either of them. Oracle's JRockit seems to be a free real-time Java implementation with predictable, deterministic behavior, although I am not sure, since their documentation is pretty heavy on marketing language. Other