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Comparing jsr166/src/test/loops/ProducerConsumerLoops.java (file contents):
Revision 1.3 by dl, Fri Oct 23 19:57:06 2009 UTC vs.
Revision 1.8 by jsr166, Thu Dec 18 18:13:06 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 34 | Line 34 | public class ProducerConsumerLoops {
34      static final int POOL_MASK = POOL_SIZE-1;
35      static final Integer[] intPool = new Integer[POOL_SIZE];
36      static {
37 <        for (int i = 0; i < POOL_SIZE; ++i)
37 >        for (int i = 0; i < POOL_SIZE; ++i)
38              intPool[i] = Integer.valueOf(i);
39      }
40  
41      // Number of puts by producers or takes by consumers
42      static final int ITERS = 1 << 20;
43  
44 <    // max lag between a producer and consumer to avoid
44 >    // max lag between a producer and consumer to avoid
45      // this becoming a GC test rather than queue test.
46      // Used only per-pair to lessen impact on queue sync
47      static final int LAG_MASK = (1 << 12) - 1;
# Line 49 | Line 49 | public class ProducerConsumerLoops {
49      public static void main(String[] args) throws Exception {
50          int maxPairs = NCPUS * 3 / 2;
51  
52 <        if (args.length > 0)
52 >        if (args.length > 0)
53              maxPairs = Integer.parseInt(args[0]);
54  
55          warmup();
56          print = true;
57 <        int k = 1;
58 <        for (int i = 1; i <= maxPairs;) {
57 >        for (int k = 1, i = 1; i <= maxPairs;) {
58              System.out.println("Pairs:" + i);
59              oneTest(i, ITERS);
60              if (i == k) {
61                  k = i << 1;
62                  i = i + (i >>> 1);
63 <            }
64 <            else
63 >            }
64 >            else
65                  i = k;
66          }
67          pool.shutdown();
# Line 73 | Line 72 | public class ProducerConsumerLoops {
72          System.out.print("Warmup ");
73          int it = 2000;
74          for (int j = 5; j > 0; --j) {
75 <            oneTest(j, it);
75 >            oneTest(j, it);
76              System.out.print(".");
77              it += 1000;
78          }
79          System.gc();
80          it = 20000;
81          for (int j = 5; j > 0; --j) {
82 <            oneTest(j, it);
82 >            oneTest(j, it);
83              System.out.print(".");
84              it += 10000;
85          }
# Line 110 | Line 109 | public class ProducerConsumerLoops {
109          if (print)
110              System.out.print("LinkedBlockingDeque     ");
111          oneRun(new LinkedBlockingDeque<Integer>(), n, iters);
112 <        
112 >
113          Thread.sleep(100); // System.gc();
114          if (print)
115              System.out.print("ArrayBlockingQueue      ");
# Line 121 | Line 120 | public class ProducerConsumerLoops {
120              System.out.print("SynchronousQueue        ");
121          oneRun(new SynchronousQueue<Integer>(), n, iters);
122  
123 <        
123 >
124          Thread.sleep(100); // System.gc();
125          if (print)
126              System.out.print("SynchronousQueue(fair)  ");
# Line 136 | Line 135 | public class ProducerConsumerLoops {
135          if (print)
136              System.out.print("LinkedTransferQueue(half)");
137          oneRun(new HalfSyncLTQ<Integer>(), n, iters);
138 <        
138 >
139          Thread.sleep(100); // System.gc();
140          if (print)
141              System.out.print("PriorityBlockingQueue   ");
# Line 148 | Line 147 | public class ProducerConsumerLoops {
147          oneRun(new ArrayBlockingQueue<Integer>(POOL_SIZE, true), n, fairIters);
148  
149      }
150 <    
151 <    static abstract class Stage implements Runnable {
150 >
151 >    abstract static class Stage implements Runnable {
152          final int iters;
153          final BlockingQueue<Integer> queue;
154          final CyclicBarrier barrier;
155          final Phaser lagPhaser;
156 <        Stage (BlockingQueue<Integer> q, CyclicBarrier b, Phaser s,
157 <               int iters) {
159 <            queue = q;
156 >        Stage(BlockingQueue<Integer> q, CyclicBarrier b, Phaser s, int iters) {
157 >            queue = q;
158              barrier = b;
159              lagPhaser = s;
160              this.iters = iters;
# Line 186 | Line 184 | public class ProducerConsumerLoops {
184                  addProducerSum(ps);
185                  barrier.await();
186              }
187 <            catch (Exception ie) {
188 <                ie.printStackTrace();
189 <                return;
187 >            catch (Exception ie) {
188 >                ie.printStackTrace();
189 >                return;
190              }
191          }
192      }
193  
194      static class Consumer extends Stage {
195          Consumer(BlockingQueue<Integer> q, CyclicBarrier b, Phaser s,
196 <                 int iters) {
196 >                 int iters) {
197              super(q, b, s, iters);
198          }
199  
# Line 213 | Line 211 | public class ProducerConsumerLoops {
211                  addConsumerSum(cs);
212                  barrier.await();
213              }
214 <            catch (Exception ie) {
215 <                ie.printStackTrace();
216 <                return;
214 >            catch (Exception ie) {
215 >                ie.printStackTrace();
216 >                return;
217              }
218          }
219  
# Line 240 | Line 238 | public class ProducerConsumerLoops {
238      static final class LTQasSQ<T> extends LinkedTransferQueue<T> {
239          LTQasSQ() { super(); }
240          public void put(T x) {
241 <            try { super.transfer(x);
241 >            try { super.transfer(x);
242              } catch (InterruptedException ex) { throw new Error(); }
243          }
244      }
# Line 252 | Line 250 | public class ProducerConsumerLoops {
250              if ((++calls & 1) == 0)
251                  super.put(x);
252              else {
253 <                try { super.transfer(x);
254 <                } catch (InterruptedException ex) {
255 <                    throw new Error();
253 >                try { super.transfer(x);
254 >                } catch (InterruptedException ex) {
255 >                    throw new Error();
256                  }
257              }
258          }

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