threads:  1 2 4 8 12 16 20 24 32  
MutexRWLock                     1109 36953 39187 39719 38329 36360 35750 35031 34594  
ClassicRWLock                   1953 43203 48031 89484 84468 81907 80219 78828 76953  
Nonblocking_Reader_Lock         1266 19922 21453 21406 21235 20375 20343 20047 20078  
SG_Lock                         1406 19219 20485 21235 21156 20000 19391 19406 19188  
Simple_Lock                     1031 2531 3047 3437 4047 4593 4953 4610 5734  
Shared_Counter_Lock             1141 1344 1593 2359 2422 2063 2469 1875 2531  
BASELINE_Lock                   516 1875 1860 1875 1890 1875 1875 1875 1875  
  Read-Write Overhead
MutexRWLock                     593 35078 37327 37844 36439 34485 33875 33156 32719
ClassicRWLock                   1437 41328 46171 87609 82578 80032 78344 76953 75078
Nonblocking_Reader_Lock         750 18047 19593 19531 19345 18500 18468 18172 18203
SG_Lock                         890 17344 18625 19360 19266 18125 17516 17531 17313
Simple_Lock                     515 656 1187 1562 2157 2718 3078 2735 3859
Shared_Counter_Lock             625 0 0 484 532 188 594 0 656
BASELINE_Lock                   0 0 0 0 0 0 0 0 0