List/Grid Tag Archives: Performance

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How to get C like performance in Java

Overview Java has many areas which can be slow. However for every problem there is a solution. Many solutions/hacks require working around Java’s protections but if you need low level performance it is still possible. Java m ...
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Hibernate autocommit commands force MySQL in excessive disk I/O

Dear All, I am sure many of you use Hibernate and MySQL, I use it here and there myself. Generally the programming model is nice, but it is no secret that plain JDBC can be a lot faster. In this post I would like to draw your atte ...
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Java Secret: Using an enum to build a State machine

Overview The enum in Java is more powerful than many other languages which can lead to surprising uses. In this article, I outline some the individual features of enum in Java, and put them together to form a state machine. Enum f ...
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Low GC in Java: Use primitives instead of wrappers

Overview There are two good reason to use primitives instead of wrappers where possible.Clarity. By using a primitive, you are making it clear that a null value is not appropriate. Performance. Using primitives is often much fas ...
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DataNucleus 3.0 vs Hibernate 3.5

DataNucleus Access Platform, as stated at the official product site, is the most standards-compliant Open Source Java persistence product in existence. It is fully compliant with the JDO1, JDO2, JDO2.1, JDO2.2, JDO3, JPA1 and JPA2 ...
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Performance Anxiety – on Performance Unpredictability, Its Measurement and Benchmarking

Joshua Bloch had a great talk called Performance Anxiety (30min, via Parleys slides also available ) at Devoxx 2010, the main message as I read it wasNowadays, performance is completely non-predictable. You have to measure it an ...
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