java.util.HashMap : 10000000 puts in 1 threads = 21185 ms
java.util.Hashtable : 10000000 puts in 1 threads = 19096 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 1 threads = 13807 ms
java.util.Hashtable : 10000000 puts in 2 threads = 16053 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 2 threads = 6624 ms
java.util.Hashtable : 10000000 puts in 10 threads = 11514 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 10 threads = 6085 ms
java.util.Hashtable : 10000000 puts in 100 threads = 11326 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 100 threads = 5758 ms
java.util.HashMap : 10000000 puts in 1 threads = 7520 ms
java.util.Hashtable : 10000000 puts in 1 threads = 7364 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 1 threads = 7271 ms
java.util.Hashtable : 10000000 puts in 2 threads = 9111 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 2 threads = 6664 ms
java.util.Hashtable : 10000000 puts in 10 threads = 11467 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 10 threads = 6179 ms
java.util.Hashtable : 10000000 puts in 100 threads = 11592 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 100 threads = 6744 ms
java.util.HashMap : 10000000 puts in 1 threads = 8360 ms
java.util.Hashtable : 10000000 puts in 1 threads = 7270 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 1 threads = 7442 ms
java.util.Hashtable : 10000000 puts in 2 threads = 18081 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 2 threads = 6038 ms
java.util.Hashtable : 10000000 puts in 10 threads = 11622 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 10 threads = 7551 ms
java.util.Hashtable : 10000000 puts in 100 threads = 12107 ms
java.util.concurrent.ConcurrentHashMap : 10000000 puts in 100 threads = 6428 ms