@State(Scope.Thread) @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.MILLISECONDS) public class MatrixMultiplicationBenchmark { private Matrix jblasMatrix; private RealMatrix apacheMatrix; @Setup public void setup() { int size = 1000; double[][] data = new double[size][size]; jblasMatrix = new Matrix(data); apacheMatrix = MatrixUtils.createRealMatrix(data); } @Benchmark public void jblasMultiplication() { Matrix result = jblasMatrix.mmul(jblasMatrix); } @Benchmark public void apacheMultiplication() { RealMatrix result = apacheMatrix.multiply(apacheMatrix); } }