Merge changes from trunk
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_X@1063078 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Sebastian Bazley
parent
39adf71206
commit
0074cfe9c7
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@ -16,223 +16,362 @@
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*/
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package org.apache.commons.math.util;
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import org.junit.BeforeClass;
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import org.junit.Test;
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/**
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* Performance tests for FastMath.
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* Not enabled by default, as the class does not have Test in its name.
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* Not enabled by default, as the class does not end in Test.
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*
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* Invoke by running {@code mvn test -Dtest=FastMathTestPerformance}
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* Invoke by running<br/>
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* {@code mvn test -Dtest=FastMathTestPerformance}<br/>
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* or by running<br/>
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* {@code mvn test -Dtest=FastMathTestPerformance -DargLine="-DtestRuns=1234 -server"}<br/>
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*/
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public class FastMathTestPerformance {
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@Test
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public void testPerformance() {
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final int numberOfRuns = 10000000;
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for (int j = 0; j < 10; j++) {
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double x = 0;
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long time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.log(Math.PI + i/* 1.0 + i/1e9 */);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.log " + time + "\t" + x + "\t");
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private static final int RUNS = Integer.parseInt(System.getProperty("testRuns","10000000"));
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.log(Math.PI + i/* 1.0 + i/1e9 */);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.log " + time + "\t" + x);
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// Header format
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private static final String FMT_HDR = "%-5s %13s %13s %13s Runs=%d Java %s (%s) %s (%s)";
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// Detail format
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private static final String FMT_DTL = "%-5s %6d %6.2f %6d %6.2f %6d %6.2f";
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.pow(Math.PI + i / 1e6, i / 1e6);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.pow " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.pow(Math.PI + i / 1e6, i / 1e6);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.pow " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.exp(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.exp " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.exp(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.exp " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.sin(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.sin " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.sin(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.sin " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.asin(i / 10000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.asin " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.asin(i / 10000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.asin " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.cos(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.cos " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.cos(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.cos " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.acos(i / 10000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.acos " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.acos(i / 10000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.acos " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.tan(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.tan " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.tan(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.tan " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.atan(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.atan " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.atan(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.atan " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.cbrt(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.cbrt " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.cbrt(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.cbrt " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.cosh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.cosh " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.cosh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.cosh " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.sinh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.sinh " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.sinh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.sinh " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.tanh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.tanh " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.tanh(i / 1000000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.tanh " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += StrictMath.expm1(-i / 100000.0);
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time = System.currentTimeMillis() - time;
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System.out.print("StrictMath.expm1 " + time + "\t" + x + "\t");
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.expm1(-i / 100000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.expm1 " + time + "\t" + x);
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x = 0;
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time = System.currentTimeMillis();
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for (int i = 0; i < numberOfRuns; i++)
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x += FastMath.expm1(-i / 100000.0);
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time = System.currentTimeMillis() - time;
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System.out.println("FastMath.expm1 " + time + "\t" + x);
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}
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@BeforeClass
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public static void header() {
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System.out.println(String.format(FMT_HDR,
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"Name","StrictMath","FastMath","Math",RUNS,
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System.getProperty("java.version"),
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System.getProperty("java.runtime.version","?"),
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System.getProperty("java.vm.name"),
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System.getProperty("java.vm.version"),
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""));
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}
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}
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private static void report(String name, long strictMathTime, long fastMathTime, long mathTime) {
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long unitTime = strictMathTime;
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System.out.println(String.format(FMT_DTL,
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name,
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strictMathTime / RUNS, (double) strictMathTime / unitTime,
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fastMathTime / RUNS, (double) fastMathTime / unitTime,
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mathTime / RUNS, (double) mathTime / unitTime
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));
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}
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@Test
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public void testLog() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.log(Math.PI + i/* 1.0 + i/1e9 */);
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long strictMath = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.log(Math.PI + i/* 1.0 + i/1e9 */);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.log(Math.PI + i/* 1.0 + i/1e9 */);
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long mathTime = System.nanoTime() - time;
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report("log",strictMath,fastTime,mathTime);
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}
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@Test
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public void testPow() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.pow(Math.PI + i / 1e6, i / 1e6);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.pow(Math.PI + i / 1e6, i / 1e6);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.pow(Math.PI + i / 1e6, i / 1e6);
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long mathTime = System.nanoTime() - time;
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report("pow",strictTime,fastTime,mathTime);
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}
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@Test
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public void testExp() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.exp(i / 1000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.exp(i / 1000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.exp(i / 1000000.0);
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long mathTime = System.nanoTime() - time;
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report("exp",strictTime,fastTime,mathTime);
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}
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@Test
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public void testSin() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.sin(i / 1000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.sin(i / 1000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.sin(i / 1000000.0);
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long mathTime = System.nanoTime() - time;
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report("sin",strictTime,fastTime,mathTime);
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}
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@Test
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public void testAsin() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.asin(i / 10000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.asin(i / 10000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.asin(i / 10000000.0);
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long mathTime = System.nanoTime() - time;
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report("asin",strictTime,fastTime,mathTime);
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}
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@Test
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public void testCos() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.cos(i / 1000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.cos(i / 1000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.cos(i / 1000000.0);
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long mathTime = System.nanoTime() - time;
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report("cos",strictTime,fastTime,mathTime);
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}
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@Test
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public void testAcos() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.acos(i / 10000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.acos(i / 10000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.acos(i / 10000000.0);
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long mathTime = System.nanoTime() - time;
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report("acos",strictTime,fastTime,mathTime);
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}
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@Test
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public void testTan() {
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double x = 0;
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long time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += StrictMath.tan(i / 1000000.0);
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long strictTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += FastMath.tan(i / 1000000.0);
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long fastTime = System.nanoTime() - time;
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x = 0;
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time = System.nanoTime();
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for (int i = 0; i < RUNS; i++)
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x += Math.tan(i / 1000000.0);
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long mathTime = System.nanoTime() - time;
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|
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report("tan",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAtan() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.atan(i / 1000000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.atan(i / 1000000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.atan(i / 1000000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
|
||||
report("atan",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testCbrt() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.cbrt(i / 1000000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.cbrt(i / 1000000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.cbrt(i / 1000000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
|
||||
report("cbrt",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testCosh() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.cosh(i / 1000000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.cosh(i / 1000000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.cosh(i / 1000000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
|
||||
report("cosh",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testSinh() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.sinh(i / 1000000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.sinh(i / 1000000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.sinh(i / 1000000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
|
||||
report("sinh",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testTanh() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.tanh(i / 1000000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.tanh(i / 1000000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.tanh(i / 1000000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
|
||||
report("tanh",strictTime,fastTime,mathTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testExpm1() {
|
||||
double x = 0;
|
||||
long time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += StrictMath.expm1(-i / 100000.0);
|
||||
long strictTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += FastMath.expm1(-i / 100000.0);
|
||||
long fastTime = System.nanoTime() - time;
|
||||
|
||||
x = 0;
|
||||
time = System.nanoTime();
|
||||
for (int i = 0; i < RUNS; i++)
|
||||
x += Math.expm1(-i / 100000.0);
|
||||
long mathTime = System.nanoTime() - time;
|
||||
report("expm1",strictTime,fastTime,mathTime);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue