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From er...@apache.org
Subject svn commit: r1063019 - /commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java
Date Mon, 24 Jan 2011 22:15:45 GMT
Author: erans
Date: Mon Jan 24 22:15:44 2011
New Revision: 1063019

URL: http://svn.apache.org/viewvc?rev=1063019&view=rev
Log:
Output timing info as a ratio with respect to StrictMath benchmark result.

Modified:
    commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java

Modified: commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java
URL: http://svn.apache.org/viewvc/commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java?rev=1063019&r1=1063018&r2=1063019&view=diff
==============================================================================
--- commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java
(original)
+++ commons/proper/math/trunk/src/test/java/org/apache/commons/math/util/FastMathTestPerformance.java
Mon Jan 24 22:15:44 2011
@@ -27,565 +27,380 @@ import org.junit.Ignore;
  */
 public class FastMathTestPerformance {
     private static final int RUNS = 10000000;
-    private static final double SCALE = 1000d / RUNS;
 
-    @Ignore
-    public void testPerformance() {
-        final int numberOfRuns = 10000000;
-        for (int j = 0; j < 10; j++) {
-            double x = 0;
-            long time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.log(Math.PI + i/* 1.0 + i/1e9 */);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.log " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.log(Math.PI + i/* 1.0 + i/1e9 */);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.log " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.pow(Math.PI + i / 1e6, i / 1e6);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.pow " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.pow(Math.PI + i / 1e6, i / 1e6);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.pow " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.exp(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.exp " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.exp(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.exp " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.sin(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.sin " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.sin(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.sin " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.asin(i / 10000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.asin " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.asin(i / 10000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.asin " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.cos(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.cos " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.cos(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.cos " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.acos(i / 10000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.acos " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.acos(i / 10000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.acos " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.tan(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.tan " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.tan(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.tan " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.atan(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.atan " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.atan(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.atan " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.cbrt(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.cbrt " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.cbrt(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.cbrt " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.cosh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.cosh " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.cosh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.cosh " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.sinh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.sinh " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.sinh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.sinh " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.tanh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.tanh " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.tanh(i / 1000000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.tanh " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += StrictMath.expm1(-i / 100000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.print("StrictMath.expm1 " + time + "\t" + x + "\t");
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.expm1(-i / 100000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.expm1 " + time + "\t" + x);
-
-            x = 0;
-            time = System.currentTimeMillis();
-            for (int i = 0; i < numberOfRuns; i++)
-                x += FastMath.expm1(-i / 100000.0);
-            time = System.currentTimeMillis() - time;
-            System.out.println("FastMath.expm1 " + time + "\t" + x);
-
-        }
+    private void print(String funcName) {
+        System.out.print(funcName + " ");
+    }
+    private void print(long time, long unitTime) {
+        final double ratio = time / (double) unitTime;
+        System.out.print(time + " " + ratio + " ");
+    }
+    private void println(long time, long unitTime) {
+        print(time, unitTime);
+        System.out.println();
     }
 
     @Test
     public void testLog() {
-        System.out.print("log ");
+        print("log");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.log(Math.PI + i/* 1.0 + i/1e9 */);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.log(Math.PI + i/* 1.0 + i/1e9 */);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.log(Math.PI + i/* 1.0 + i/1e9 */);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testPow() {
-        System.out.print("pow ");
+        print("pow");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.pow(Math.PI + i / 1e6, i / 1e6);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.pow(Math.PI + i / 1e6, i / 1e6);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.pow(Math.PI + i / 1e6, i / 1e6);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testExp() {
-        System.out.print("exp ");
+        print("exp");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.exp(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.exp(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.exp(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testSin() {
-        System.out.print("sin ");
+        print("sin");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.sin(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.sin(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.sin(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testAsin() {
-        System.out.print("asin ");
+        print("asin");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.asin(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.asin(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.asin(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testCos() {
-        System.out.print("cos ");
+        print("cos");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.cos(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.cos(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.cos(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
             
     @Test
     public void testAcos() {
-        System.out.print("acos ");
+        print("acos");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.acos(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.acos(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.acos(i / 10000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testTan() {
-        System.out.print("tan ");
+        print("tan");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.tan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.tan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.tan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testAtan() {
-        System.out.print("atan ");
+        print("atan");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.atan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.atan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.atan(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
      
     @Test
     public void testCbrt() {
-        System.out.print("cbrt ");
+        print("cbrt");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.cbrt(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.cbrt(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.cbrt(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testCosh() {
-        System.out.print("cosh ");        
+        print("cosh");        
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.cosh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.cosh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.cosh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testSinh() {
-        System.out.print("sinh ");
+        print("sinh");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.sinh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.sinh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.sinh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 
     @Test
     public void testTanh() {
-        System.out.print("tanh ");
+        print("tanh");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.tanh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.tanh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.tanh(i / 1000000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
      
     @Test
     public void testExpm1() {
-        System.out.print("expm1 ");
+        print("expm1");
         double x = 0;
         long time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += StrictMath.expm1(-i / 100000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        long unitTime = time;
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += FastMath.expm1(-i / 100000.0);
         time = System.currentTimeMillis() - time;
-        System.out.print(time * SCALE + " ");
+        print(time, unitTime);
 
         x = 0;
         time = System.currentTimeMillis();
         for (int i = 0; i < RUNS; i++)
             x += Math.expm1(-i / 100000.0);
         time = System.currentTimeMillis() - time;
-        System.out.println(time * SCALE);
+        println(time, unitTime);
     }
 }



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