does java have similar tool like timeit of Python

Question

Python has a timeit module could use it to time code execution, e.g.

>>> timeit.timeit(lambda:sleep(0.1), number=10)
1.02257220899628

Does in java have similar tool could time code execution as timeit, e.g.

@Timeit(number=10)
@Test
public void foo(){
    service.foo();
}

For short running parts (i.e. microbenchmarks), there is the [Java Microbenchmark Harness](http://openjdk.java.net/projects/code-tools/jmh/) ([Tutorial by Jenkov](http://tutorials.jenkov.com/java-performance/jmh.html)) — Turing85, May 04 '18 at 14:43
Since you seem to want to use it on a test: JUnit has a [timeout annotation](https://junit.org/junit4/javadoc/4.12/org/junit/rules/Timeout.html) — Robert, May 04 '18 at 14:48

Dwight J. Browne · Answer 1 · 2018-05-05T13:53:35.513

0

Not really. You can create a wrapper class using System.nanoTime().

Also, there is a similar Stack overflow question with answers posted here: How do I time a method's execution in Java?

Also of use: a very rudimentary implementation: Timeit.java

edited May 05 '18 at 13:53

answered May 04 '18 at 14:43

Dwight J. Browne

score 0 · Answer 2 · answered May 04 '18 at 14:46

0

Metrics could provide what you're looking for. But it might be a bit overkill in most cases.

answered May 04 '18 at 14:46

Alexandre GC

2 Answers2