Examples with CacheStatistics com.hazelcast.cache.CacheStatistics used on opensource projects

Example 1 with CacheStatistics

use of com.hazelcast.cache.CacheStatistics in project hazelcast by hazelcast.

the class CacheStatsTest method testHitPercentageStat.

@Test
public void testHitPercentageStat() {
    ICache<Integer, String> cache = createCache();
    CacheStatistics stats = cache.getLocalCacheStatistics();
    final int ENTRY_COUNT = 100;
    final int GET_COUNT = 3 * ENTRY_COUNT;
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.put(i, "Value-" + i);
    }
    for (int i = 0; i < GET_COUNT; i++) {
        cache.get(i);
    }
    float expectedHitPercentage = (float) ENTRY_COUNT / GET_COUNT * 100.0f;
    assertEquals(expectedHitPercentage, stats.getCacheHitPercentage(), 0.0f);
}

Example 2 with CacheStatistics

use of com.hazelcast.cache.CacheStatistics in project hazelcast by hazelcast.

the class CacheStatsTest method testMissPercentageStat.

public void testMissPercentageStat() {
    ICache<Integer, String> cache = createCache();
    CacheStatistics stats = cache.getLocalCacheStatistics();
    final int ENTRY_COUNT = 100;
    final int GET_COUNT = 3 * ENTRY_COUNT;
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.put(i, "Value-" + i);
    }
    for (int i = 0; i < GET_COUNT; i++) {
        cache.get(i);
    }
    float expectedMissPercentage = (float) (GET_COUNT - ENTRY_COUNT) / GET_COUNT * 100.0f;
    assertEquals(expectedMissPercentage, stats.getCacheMissPercentage(), 0.0f);
}

Example 3 with CacheStatistics

use of com.hazelcast.cache.CacheStatistics in project hazelcast by hazelcast.

the class CacheStatsTest method testAveragePutTimeStat.

@Test
public void testAveragePutTimeStat() {
    ICache<Integer, String> cache = createCache();
    CacheStatistics stats = cache.getLocalCacheStatistics();
    final int ENTRY_COUNT = 100;
    long start = System.nanoTime();
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.put(i, "Value-" + i);
    }
    long end = System.nanoTime();
    float avgPutTime = (end - start) / 1000;
    assertTrue(stats.getAveragePutTime() > 0);
    assertTrue(stats.getAveragePutTime() < avgPutTime);
}

Example 4 with CacheStatistics

use of com.hazelcast.cache.CacheStatistics in project hazelcast by hazelcast.

the class CacheStatsTest method testLastAccessTimeStat.

@Test
public void testLastAccessTimeStat() {
    ICache<Integer, String> cache = createCache();
    CacheStatistics stats = cache.getLocalCacheStatistics();
    final int ENTRY_COUNT = 100;
    long start, end;
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.put(i, "Value-" + i);
    }
    assertEquals(0, stats.getLastAccessTime());
    start = System.currentTimeMillis();
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.get(i);
    }
    end = System.currentTimeMillis();
    // Hits effect last access time
    assertTrue(stats.getLastAccessTime() >= start);
    assertTrue(stats.getLastAccessTime() <= end);
    long currentLastAccessTime = stats.getLastAccessTime();
    sleepAtLeastMillis(1);
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.remove(i);
    }
    // Removes has no effect on last access time
    assertEquals(currentLastAccessTime, stats.getLastAccessTime());
    sleepAtLeastMillis(1);
    start = System.currentTimeMillis();
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.get(i);
    }
    end = System.currentTimeMillis();
    // Misses also effect last access time
    assertTrue(stats.getLastAccessTime() >= start);
    assertTrue(stats.getLastAccessTime() <= end);
}

Example 5 with CacheStatistics

use of com.hazelcast.cache.CacheStatistics in project hazelcast by hazelcast.

the class CacheStatsTest method testHitStat.

@Test
public void testHitStat() {
    ICache<Integer, String> cache = createCache();
    CacheStatistics stats = cache.getLocalCacheStatistics();
    final int ENTRY_COUNT = 100;
    final int GET_COUNT = 3 * ENTRY_COUNT;
    for (int i = 0; i < ENTRY_COUNT; i++) {
        cache.put(i, "Value-" + i);
    }
    for (int i = 0; i < GET_COUNT; i++) {
        cache.get(i);
    }
    assertEquals(ENTRY_COUNT, stats.getCacheHits());
}