JavaSE BigDecimalの演算速度

package com.snail.javaexam;

import java.math.BigDecimal;

public class App {
    public static void main( String[] args ) {

        long start = System.currentTimeMillis();
        for (int cnt = 0; cnt < 10000; cnt++) {
            fpCalc();
        }
        long end = System.currentTimeMillis();

        System.out.println("FLOATING POINT ADD");
        System.out.println("  ANS =" + fpCalc());
        System.out.println("  TIME=" + (end - start));

        start = System.currentTimeMillis();
        for (int cnt = 0; cnt < 10000; cnt++) {
            decimalCalc();
        }
        end = System.currentTimeMillis();

        System.out.println("DECIMAL ADD");
        System.out.println("  ANS =" + decimalCalc());
        System.out.println("  TIME=" + (end - start));
    }

    private static double fpCalc(){
        double ans = 0.0;
        for(int cnt = 0; cnt < 10000; cnt++) {
            ans += 0.1;
        }
        return ans;
    }

    private static BigDecimal decimalCalc() {
        BigDecimal ans = new BigDecimal("0");
        for(int cnt = 0; cnt < 10000; cnt++) {
            ans = ans.add(new BigDecimal("0.1"));
        }
        return ans;
    }
}