0:  real 13.18 user 0.06 sys 11.46
1:  real 13.66 user 0.06 sys 12.04
2:  real 12.80 user 0.06 sys 11.22
3:  real 13.44 user 0.07 sys 11.68
0:  262144+0 records in 262144+0 records out real 3.00 user 0.09 sys 2.90
1:  262144+0 records in 262144+0 records out real 3.02 user 0.08 sys 2.92
2:  262144+0 records in 262144+0 records out real 3.03 user 0.08 sys 2.94
3:  262144+0 records in 262144+0 records out real 2.96 user 0.08 sys 2.86