@Test
  public void testMultiThreadGetAndEvictBlock() throws Exception {
    long maxSize = 100000;
    long blockSize = calculateBlockSize(maxSize, 10);
    LruBlockCache cache =
      new LruBlockCache(maxSize, blockSize, false, (int) Math.ceil(1.2 * maxSize / blockSize),
        LruBlockCache.DEFAULT_LOAD_FACTOR, LruBlockCache.DEFAULT_CONCURRENCY_LEVEL, 0.66f, // min
        0.99f, // acceptable
        0.33f, // single
        0.33f, // multi
        0.34f, // memory
        1.2f, // limit
        false, 1024);
    testMultiThreadGetAndEvictBlockInternal(cache);
  }
Size of the cache block holding this item. Used for verification.
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.java