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root/jsr166/jsr166/src/test/loops/IteratorLoops.java

Comparing jsr166/src/test/loops/IteratorLoops.java (file contents):
Revision 1.6 by jsr166, Mon Nov 2 23:51:32 2009 UTC vs.
Revision 1.11 by jsr166, Thu Dec 18 18:43:22 2014 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7		import java.util.*;
#	Line 14 | Line 14 | import java.util.*;
14		* and long iterators.  Reports include times for adds and other
15		* checks, so overestimate times per iteration.
16		*/
17	–
17		public final class IteratorLoops {
18		static final int DEFAULT_SIZE = 16384;
19		static final int DEFAULT_TRIALS = 4;
#	Line 23 | Line 22 | public final class IteratorLoops {
22		static int randomSeed = 3122688;
23
24		public static void main(String[] args) throws Exception {
25	<	Class klass = Class.forName(args[0]);
25	>	Class<?> klass = Class.forName(args[0]);
26		int n = (args.length <= 1) ? DEFAULT_SIZE : Integer.parseInt(args[1]);
27		int t = (args.length <= 2) ? DEFAULT_TRIALS : Integer.parseInt(args[2]);
28
29		System.out.print("Class: " + klass.getName());
30	<	System.out.print(" ~iters: " + (long)n * (long)n);
30	>	System.out.print(" ~iters: " + (long) n * (long) n);
31		System.out.print(" trials: " + t);
32		System.out.println();
33
#	Line 65 | Line 64 | public final class IteratorLoops {
64		preload(n);
65		long startTime = System.nanoTime();
66		long count = traversals(n);
67	<	double elapsed = (double)(System.nanoTime() - startTime);
67	>	double elapsed = (double) (System.nanoTime() - startTime);
68		double npi = elapsed / count;
69		double secs = elapsed / 1000000000;
70		System.out.printf("%7.1f ns/iter  %8.3fs run time\n", npi, secs);
#	Line 74 | Line 73 | public final class IteratorLoops {
73		long traversals(int n) {
74		long count = 0;
75		long check = 0;
76	<	for (int i = 0; i < n; i++) {
76	>	for (int i = 0; i < n; i++) {
77		check += elementCount;
78		count += counts();
79		maybeAdd();

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