Top "Microbenchmark" questions

A microbenchmark attempts to measure the performance of a "small" bit of code.

How do I write a correct micro-benchmark in Java?

How do you write (and run) a correct micro-benchmark in Java? I'm looking for some code samples and comments illustrating …

java jvm benchmarking jvm-hotspot microbenchmark
Getting an accurate execution time in C++ (micro seconds)

I want to get an accurate execution time in micro seconds of my program implemented with C++. I have tried …

c++ performance benchmarking timing microbenchmark
Difference between MATLAB's numel and length functions

I know that length(x) returns max(size(x)) and numel(x) returns the total number of elements of x, …

arrays matlab microbenchmark
Why is (a*b != 0) faster than (a != 0 && b != 0) in Java?

I'm writing some code in Java where, at some point, the flow of the program is determined by whether two …

java performance processing-efficiency microbenchmark branch-prediction
Java for loop performance question

considering this example: public static void main(final String[] args) { final List<String> myList = Arrays.asList("A", "B", "…

java performance compiler-construction for-loop microbenchmark
What is microbenchmarking?

I've heard this term used, but I'm not entirely sure what it means, so: What DOES it mean and what …

java performance benchmarking jit microbenchmark
If statement vs if-else statement, which is faster?

I argued with a friend the other day about those two snippets. Which is faster and why ? value = 5; if (condition) { …

c++ performance c++11 assembly microbenchmark
Understanding the output of -XX:+PrintCompilation

I am running some micro benchmarks on Java list iteration code. I have used -XX:+PrintCompilation, and -verbose:gc flags …

java microbenchmark
Hidden performance cost in Scala?

I came across this old question and did the following experiment with scala 2.10.3. I rewrote the Scala version to use …

java performance scala jvm microbenchmark
JMH not working in Eclipse (as Maven project) - No benchmarks to run

I want to start have a look at JMH and I'm failing to run benchmarks due some reasons. Let me …

java eclipse maven microbenchmark jmh