4r:
real        5.0
user        2.6
sys         0.1

real     2:21.5
user     1:27.7
sys         1.2

real     2:00.1
user     1:37.2
sys         0.3

4r_f:
real        5.3
user        3.4
sys         0.1

real     3:53.6
user     2:25.1
sys         1.0

real       19.0
user        7.3
sys         0.1

5r:
real        6.8
user        4.2
sys         0.1

real     5:46.8
user     3:25.0
sys         1.3

real        4.8
user        2.0
sys         0.1

5r_f:
real        6.2
user        4.0
sys         0.2

real    10:23.1
user     5:45.9
sys         1.3

real        3.6
user        0.1
sys         0.1

6r:
real       15.5
user       12.6
sys         0.2

real    27:22.6
user    22:13.7
sys         3.1

real       48.6
user       37.7
sys         0.2

6r_f:
real       17.3
user       13.0
sys         0.2

real    30:14.2
user    25:01.2
sys         3.9

real     8:13.7
user     7:58.1
sys         1.6

7r:
real       16.4
user       12.9
sys         0.3

real    31:41.2
user    22:06.6
sys         3.5

real       43.3
user       36.7
sys         0.2

7r_f:
real       21.8
user       12.7
sys         0.2

real    25:31.2
user    22:49.0
sys         4.3

real    11:19.7
user    10:43.0
sys         1.8

8r:
real       18.5
user       14.1
sys         0.2

real    25:42.8
user    21:54.1
sys         4.0

real       42.8
user       37.3
sys         0.2

8r_f:
real       15.0
user       12.6
sys         0.2

real    24:29.4
user    22:24.5
sys         2.8

real     9:22.7
user     8:58.9
sys         1.4