Java Performance measurement

Question

I am doing some Java performance comparison between my classes, and wondering if there is some sort of Java Performance Framework to make writing performance measurement cod

Answer 1

In short, you are thus searching for an "Java unit performance testing tool"?

Use JUnitPerf.

Update: for the case it's not clear yet: it also supports concurrent (multithreading) testing. Here's an extract of the chapter "LoadTest" of the aforementioned link which includes a code sample:

For example, to create a load test of 10 concurrent users with each user running the ExampleTestCase.testOneSecondResponse() method for 20 iterations, and with a 1 second delay between the addition of users, use:

int users = 10;
int iterations = 20;
Timer timer = new ConstantTimer(1000);
Test testCase = new ExampleTestCase("testOneSecondResponse");
Test repeatedTest = new RepeatedTest(testCase, iterations);
Test loadTest = new LoadTest(repeatedTest, users, timer);