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BAEL-4686: Corrected the test

This commit is contained in:
Amitabh Tiwari 2020-11-23 17:32:18 +05:30
parent 61f4eb62a7
commit bd6bc03c93
1 changed files with 43 additions and 43 deletions
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86
core-java-modules/core-java-collections-maps-3/src/test/java/com/baeldung/map/concurrenthashmap/ConcurrentHashMapVsSynchronizedMapPerformanceTest.java
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@ -15,7 +15,7 @@ public class ConcurrentHashMapVsSynchronizedMapPerformanceTest {
public final static int THREAD_POOL_SIZE = 5;
public final static int TEST_ITERATIONS = 5;
public final static int TEST_NO_ITEMS = 500000;
public final static int TEST_NO_ITEMS = 10000;
@Test
public void randomReadAndWritePerformaceTest_ConcurrentHashMap_faster()
@ -40,6 +40,28 @@ public class ConcurrentHashMapVsSynchronizedMapPerformanceTest {
Assert.assertTrue(avgTimeForSynchronizedMap > avgTimeForConcurrentHashMap);
}
private long performReadAndWriteTest(final Map<String, Integer> map)
throws InterruptedException {
long startTime = System.nanoTime();
ExecutorService exectures = Executors.newFixedThreadPool(THREAD_POOL_SIZE);
for (int j = 0; j < THREAD_POOL_SIZE; j++) {
exectures.execute(new Runnable() {
@Override
public void run() {
for (int i = 0; i < TEST_NO_ITEMS; i++) {
Integer randNumber = (int) Math.ceil(Math.random() * TEST_NO_ITEMS);
map.get(String.valueOf(randNumber));
map.put(String.valueOf(randNumber), randNumber);
}
}
});
}
exectures.shutdown();
exectures.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
long entTime = System.nanoTime();
return (entTime - startTime) / 1000000L;
}
@Test
public void randomWritePerformaceTest_ConcurrentHashMap_faster() throws InterruptedException {
// For synchronizedMap
@ -62,6 +84,26 @@ public class ConcurrentHashMapVsSynchronizedMapPerformanceTest {
Assert.assertTrue(avgTimeForSynchronizedMap > avgTimeForConcurrentHashMap);
}
private long performWriteTest(final Map<String, Integer> map) throws InterruptedException {
long startTime = System.nanoTime();
ExecutorService exectures = Executors.newFixedThreadPool(THREAD_POOL_SIZE);
for (int j = 0; j < THREAD_POOL_SIZE; j++) {
exectures.execute(new Runnable() {
@Override
public void run() {
for (int i = 0; i < TEST_NO_ITEMS; i++) {
Integer randNumber = (int) Math.ceil(Math.random() * TEST_NO_ITEMS);
map.put(String.valueOf(randNumber), randNumber);
}
}
});
}
exectures.shutdown();
exectures.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
long entTime = System.nanoTime();
return (entTime - startTime) / 1000000L;
}
@Test
public void randomReadPerformaceTest_ConcurrentHashMap_faster() throws InterruptedException {
@ -94,48 +136,6 @@ public class ConcurrentHashMapVsSynchronizedMapPerformanceTest {
return map;
}
private long performWriteTest(final Map<String, Integer> map) throws InterruptedException {
long startTime = System.nanoTime();
ExecutorService exectures = Executors.newFixedThreadPool(THREAD_POOL_SIZE);
for (int j = 0; j < THREAD_POOL_SIZE; j++) {
exectures.execute(new Runnable() {
@Override
public void run() {
for (int i = 0; i < TEST_NO_ITEMS; i++) {
Integer randNumber = (int) Math.ceil(Math.random() * TEST_NO_ITEMS);
map.put(String.valueOf(randNumber), randNumber);
}
}
});
}
exectures.shutdown();
exectures.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
long entTime = System.nanoTime();
return (entTime - startTime) / 1000000L;
}
private long performReadAndWriteTest(final Map<String, Integer> map)
throws InterruptedException {
long startTime = System.nanoTime();
ExecutorService exectures = Executors.newFixedThreadPool(THREAD_POOL_SIZE);
for (int j = 0; j < THREAD_POOL_SIZE; j++) {
exectures.execute(new Runnable() {
@Override
public void run() {
for (int i = 0; i < TEST_NO_ITEMS; i++) {
Integer randNumber = (int) Math.ceil(Math.random() * TEST_NO_ITEMS);
map.get(String.valueOf(randNumber));
map.put(String.valueOf(randNumber), randNumber);
}
}
});
}
exectures.shutdown();
exectures.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
long entTime = System.nanoTime();
return (entTime - startTime) / 1000000L;
}
private long performReadTest(final Map<String, Integer> map) throws InterruptedException {
long startTime = System.nanoTime();
ExecutorService exectures = Executors.newFixedThreadPool(THREAD_POOL_SIZE);