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

Comparing jsr166/src/test/loops/TimeoutExchangerLoops.java (file contents):
Revision 1.3 by dl, Mon Feb 19 00:46:06 2007 UTC vs.
Revision 1.9 by dl, Sat Sep 12 20:32:48 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Bill Scherer and Doug Lea with assistance from members
3		* of JCP JSR-166 Expert Group and released to the public domain, as
4	<	* explained at http://creativecommons.org/licenses/publicdomain
4	>	* explained at http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7		import java.util.concurrent.*;
#	Line 12 | Line 12 | public class TimeoutExchangerLoops {
12		static final int NCPUS = Runtime.getRuntime().availableProcessors();
13
14		static final int  DEFAULT_THREADS = NCPUS + 2;
15	<	static final long DEFAULT_PATIENCE_NANOS = 500000;
15	>	static final long DEFAULT_PATIENCE_NANOS = 100000;
16		static final long DEFAULT_TRIAL_MILLIS   = 10000;
17
18		public static void main(String[] args) throws Exception {
#	Line 31 | Line 31 | public class TimeoutExchangerLoops {
31		patienceNanos = Long.parseLong(args[argc]);
32		else if (option.equals("-r"))
33		nReps = Integer.parseInt(args[argc]);
34	<	else
34	>	else
35		maxThreads = Integer.parseInt(option);
36		argc++;
37		}
38
39	<	// Display runtime parameters
40	<	System.out.print("TimeoutExchangerTest");
41	<	System.out.print(" -t " + trialMillis);
42	<	System.out.print(" -p " + patienceNanos);
39	>	// Display runtime parameters
40	>	System.out.print("TimeoutExchangerTest");
41	>	System.out.print(" -t " + trialMillis);
42	>	System.out.print(" -p " + patienceNanos);
43		System.out.print(" -r " + nReps);
44	<	System.out.print(" max threads " + maxThreads);
45	<	System.out.println();
44	>	System.out.print(" max threads " + maxThreads);
45	>	System.out.println();
46
47		System.out.println("Warmups..");
48		long warmupTime = 1000;
#	Line 73 | Line 73 | public class TimeoutExchangerLoops {
73		}
74		}
75
76	<	static void oneRun(int nThreads, long trialMillis, long patienceNanos)
76	>	static void oneRun(int nThreads, long trialMillis, long patienceNanos)
77		throws Exception {
78		System.out.printf("%4d threads", nThreads);
79		System.out.printf("%9dms", trialMillis);
#	Line 89 | Line 89 | public class TimeoutExchangerLoops {
89		long startTime = System.nanoTime();
90		start.countDown();
91		Thread.sleep(trialMillis);
92	<	for (int i = 0; i < nThreads; ++i)
92	>	for (int i = 0; i < nThreads; ++i)
93		threads[i].interrupt();
94		long elapsed = System.nanoTime() - startTime;
95	<	for (int i = 0; i < nThreads; ++i)
95	>	for (int i = 0; i < nThreads; ++i)
96		threads[i].join();
97		int iters = 0;
98		long fails = 0;
#	Line 103 | Line 103 | public class TimeoutExchangerLoops {
103		if (iters <= 0) iters = 1;
104		long rate = iters * 1000L * 1000L * 1000L / elapsed;
105		long npt = elapsed / iters;
106	<	double failRate = (fails * 100.0) / (double)iters;
106	>	double failRate = (fails * 100.0) / (double) iters;
107		System.out.printf("%9d it/s ", rate);
108		System.out.printf("%9d ns/it", npt);
109	<	System.out.printf("%9.5f%% fails", failRate);
109	>	System.out.printf("%9.5f%% fails ", failRate);
110	>	System.out.print(fails);
111		System.out.println();
112		//        x.printStats();
113		}
114
114	–
115		static final class Runner implements Runnable {
116		final Exchanger exchanger;
117		final CountDownLatch start;
#	Line 153 | Line 153 | public class TimeoutExchangerLoops {
153		}
154		}
155		}
156	–

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