With PostgresExt
user system total real
0.340000 0.020000 0.360000 ( 0.742707)
0.350000 0.030000 0.380000 ( 0.751849)
0.360000 0.010000 0.370000 ( 0.798465)
0.330000 0.020000 0.350000 ( 0.723302)
0.360000 0.020000 0.380000 ( 0.750776)
0.370000 0.010000 0.380000 ( 0.748968)