Saturday, November 23, 2013

Memory Leaks

Memory Profiling victimisation JProbe The sample example which demonstrates the habit of JProbe to find the retention leaks and the improvement after the leak is fixed. whodunit Description: hither we are creating 10 Employee exemplifys and adding them to a employeeArray [] victimisation addEmployeeToArray() and removing these 10 instances from this array from the employeeArray using removeEmployeeFromArray().But due to the faulty number the reference to these 10 Employee instances are quiet available and because of which the JVM fails to GC these 10 Employee instances from the heap. Thus adding overhead to the heap memory. Solution: here we have created a dummy methods i.e. startUseCase() and endUseCase(); and added them as a induce off in the JProbe console so when we connect to the trail JVM using JProbe it will automatically take the snapshot between these twain methods.(For configuring the industry refer the user guide ). in addition beguil e accompany the given steps to find and fix the memory leak. measuring rod 1: Source Code: ill-treat 2: flux the exertion and do the below panorama for automatically taking the snapshots. Step 3: Run the application using the figure out file. Attaching JProbe console to the running JVM where the application is running.
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Step 4: confab on the Employee instance disperse Instance expand sentiment to investigate the leak. Step 5: Select the first instance and click Show all! ocated at commencement to view the source code from where the leak started. Also none that the instance details view also provides early(a) details like the referrers, references etc so that we can get an conception as to which object is still having the reference to the Employee, thus not allowing the employee instances to get GCed....If you want to get a full essay, commit it on our website: BestEssayCheap.com

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