Examples with MapMaker com.google.common.collect.MapMaker used on opensource projects

Example 31 with MapMaker

use of com.google.common.collect.MapMaker in project DirectMemory by raffaeleguidi.

the class PreliminarBenchmarks method pumpWithOneAllocation.

private void pumpWithOneAllocation(int ops, byte[] payload) {
    ConcurrentMap<String, ByteBuffer> test = new MapMaker().concurrencyLevel(4).maximumSize(ops).expireAfterWrite(10, TimeUnit.MINUTES).makeMap();
    logger.info(Ram.inMb(ops * payload.length) + " in " + ops + " slices to store");
    ByteBuffer bulk = ByteBuffer.allocateDirect(ops * payload.length);
    double started = System.currentTimeMillis();
    for (int i = 0; i < ops; i++) {
        bulk.position(i * payload.length);
        final ByteBuffer buf = bulk.duplicate();
        buf.put(payload);
        test.put("test-" + i, buf);
    }
    double finished = System.currentTimeMillis();
    logger.info("done in " + (finished - started) / 1000 + " seconds");
    for (ByteBuffer buf : test.values()) {
        buf.clear();
    }
}

Example 32 with MapMaker

use of com.google.common.collect.MapMaker in project pinpoint by naver.

the class Maps method newWeakConcurrentMap.

public static <K, V> ConcurrentMap<K, V> newWeakConcurrentMap(int initialCapacity) {
    final MapMaker weakMapMaker = createWeakMapMaker();
    weakMapMaker.initialCapacity(initialCapacity);
    return weakMapMaker.makeMap();
}