C:\test\lockfree>mutex2 1 10240000
threads:    1 loops:  10240000  count:   20480000 time: 7.412000 processor cycles:  17760824082

C:\test\lockfree>mutex2 4 10240000
threads:    4 loops:   2560000  count:   20480000 time:63.428000 processor cycles: 126683354358

C:\test\lockfree>mutex2 16 10240000
threads:   16 loops:    640000  count:   20480000 time:61.973000 processor cycles: 122496755463

C:\test\lockfree>mutex2 64 10240000
threads:   64 loops:    160000  count:   20480000 time:61.520000 processor cycles: 121312774089

C:\test\lockfree>mutex2 256 10240000
threads:  256 loops:     40000  count:   20480000 time:63.874000 processor cycles: 127362344526

C:\test\lockfree>mutex2 1024 10240000
threads: 1024 loops:     10000  count:   20480000 time:73.238000 processor cycles: 148526579529

C:\test\lockfree>mutex2 4096 10240000
threads: 4096 loops:      2500  count:   20480000 time:86.104000 processor cycles: 178245340731