Home » Author Archives: Ilkin Ulas

Author Archives: Ilkin Ulas

Apache JMeter: Load Test Whatever You Want

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This is the second post about load testing with Apache JMeter, read the first post here: A step by step tutorial about load testing relational databases. JMeter has lots of Samplers. If you need a sampler that is not provided by JMeter you can write your custom sampler. (custom samplers are called “Java Request” in JMeter terminology) This post will ...

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JMeter: Load Testing Relational Databases

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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, executes them and returns the results of the execution. I’am going to show you how easy it is to set up test scenarios with ...

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Java Concurrency with ReadWriteLock

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Writing multithreaded java applications is not a piece of cake. Extra care must be taken because bad synchronization can bring your application to its knees. The JVM heap is shared by all the threads. If multiple threads need to use the same objects or static class variables concurrently, thread access to shared data must be carefuly managed. Since version 1.5, ...

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