List/Grid Tag Archives: Performance

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JMeter: Load Testing Relational Databases

Apache JMeter is a performance testing tool which is entirely written in Java. Any application that works on request/response model can be load tested with JMeter. A relational database is not an exception: receives sql queries, e ...
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Building High Performance Applications

Performance is one word which is used to describe multiple scenarios’ when talking about the application performance. When someone says, I need a High Performance Application; it might mean any/all of the following :Low Web la ...
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Hibernate Performance Tips: Dirty Collection Effect

After 8 years developing server and embedded applications using Hibernate as ORM, squeezing my brain seeking solutions to improve Hibernate performance, reading blogs and attending conferences, I decided to share this knowledge ac ...
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Recycling objects to improve performance

Overview In a previous article I stated that the reason the deserialization of objects was faster was due to using recycled objects. This is potentially surprising for two reasons, 1) the belief that creating objects is so fast th ...
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High Performance JPA with GlassFish and Coherence – Part 3

In this third part of my four part series I’ll explain strategy number two of using Coherence with EclipseLink and GlassFish. This is all about using Coherence as Second Level Cache (L2) with EclipseLink. General approach...
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High Performance JPA with GlassFish and Coherence – Part 2

In this second part of my four part series I’ll explain strategy number one of using Coherence with EclipseLink and GlassFish.This describes the steps you have to take to configure a JPA backed Cache with Coherence and how y ...
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High performance JPA with GlassFish and Coherence – Part 1

Have you heard about Coherence before? Probably yes. It’s one of those famous in-memory grid solutions promising awesome fast data access and unlimited space for your frequently used data. Some of it’s well k ...
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Java Secret: Loading and unloading static fields

OVERVIEW To start with it is natural to assume that static fields have a special life cycle and live for the life of the application. You could assume that they live is a special place in memory like the start of memory in C or i ...
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Quick tips for improving Java apps performance

Ever had performance problems? Yeah me too. If my manager screams “faaaaster” one more time, i will have hearing impairment for the rest of my life. BTW, did i sense a German pronunciation in all that noise? ;-) Can you believ ...
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C++ or Java, which is faster for high frequency trading?

Overview There are conflicting views as to what is the best solution for high frequency trading. Part of the problem is that what is high frequency trading varies more than you might expect, another part is what is meant by faster ...
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