Java Performance Analysis for business methods

Question

I've a business method implemented in two different ways. I want to analyze the performance of the implementations. How should I do this?

You can make your own input date for those methods. Then detect time before method start and after method finish work and ready :) (use System.getCurrentTimeMIllis()) — Kamen Stoykov, Jul 04 '13 at 12:05

score 1 · Answer 1 · edited May 23 '17 at 10:32

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Read about micro benchmarks here then use Caliper

edited May 23 '17 at 10:32

Community

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answered Jul 04 '13 at 12:13

Bruno Grieder

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score 0 · Answer 2 · answered Jul 04 '13 at 12:06

Write a timing aspect and use something like JMeter to create a high volume test. Keep statistics on performance: min, mean, max, standard deviation, quartiles. Do Student-T test on both to see if the difference in means is significantly different.

If it's a business method, you'll need to generate sufficient scrubbed data to drive the application. It's easy if a single request is sufficient, but you'll have to write a randomized message generator if not.

That should tell you what's going on.

score 0 · Answer 3 · answered Jul 04 '13 at 12:07

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Write a small app that uses that class and then you could use VisualVM to profile your class.

answered Jul 04 '13 at 12:07

Matyas

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Java Performance Analysis for business methods

3 Answers3