MyCounter2, increment only threads, nsec/threads 1, 14080946 2, 7125819 3, 5423802 4, 4421938 5, 4087780 6, 3612584 7, 3394755 8, 2795758 9, 3898962 10, 3760077 11, 3911488 12, 3487997 13, 3338475 14, 3095684 15, 2950240 16, 2768999 17, 3258956 18, 3223633 19, 3352318 20, 3093653 32, 2730511 64, 2793927 128, 2801071 256, 2766139 512, 2770014 1024, 2803582 CliffcCounter, increment only threads, nsec/threads 1, 14357815 2, 26701578 3, 14311725 4, 14161931 5, 9596508 6, 8811812 7, 7510484 8, 9243826 9, 5281519 10, 6352415 11, 5298526 12, 5595945 13, 5070214 14, 5370478 15, 4051101 16, 4738620 17, 5161829 18, 4329520 19, 4439148 20, 4795632 32, 4337953 64, 3556547 128, 3491089 256, 3453715 512, 3425008 1024, 3456831 MyCounter2, increment & get threads, nsec/threads 1, 18994053 2, 32868619 3, 31160226 4, 28294181 5, 24035112 6, 21754089 7, 20516143 8, 18488843 9, 23139774 10, 23437266 11, 21440963 12, 21232011 13, 20615288 14, 20863584 15, 21633071 16, 19568682 17, 20559335 18, 21489712 19, 23737977 20, 22946105 32, 23214788 64, 26262184 128, 28782449 CliffcCounter, increment & get threads, nsec/threads 1, 37141172 2, 91185862 3, 72352876 4, 60642091 5, 55325592 6, 55256530 7, 65260207 8, 47022083 9, 49815806 10, 64151467 11, 56046391 12, 65024058 13, 63424142 14, 61636105 15, 68594831 16, 131328159 17, 59047513 18, 55724266 19, 70453099 20, 66207902 32, 83833952 64, 97873870 128, 152397290 AtomicLong, incrementAndGet threads, nsec/threads 1, 13051189 2, 50771664 3, 81483862 4, 97416616 5, 109109769 6, 119758790 7, 140258192 8, 152611607 9, 145737033 10, 149421807 11, 151747540 12, 152947232 13, 154871299 14, 156863319 15, 154353837 16, 155847087 17, 155298606 18, 157276696 19, 151938666 20, 154073013 32, 156005049 64, 157837522 128, 159234101