make -j1

real	9m4.756s
user	8m36.942s
sys	0m42.602s

real	9m4.843s
user	8m35.586s
sys	0m44.057s

real	9m4.285s
user	8m35.998s
sys	0m43.050s
make -j2

real	4m58.747s
user	8m58.886s
sys	0m45.018s

real	4m50.059s
user	8m56.551s
sys	0m44.908s

real	5m28.092s
user	8m54.603s
sys	0m43.375s
make -j3

real	4m12.479s
user	9m11.322s
sys	0m44.919s

real	5m1.751s
user	9m2.307s
sys	0m45.263s

real	5m38.080s
user	8m57.904s
sys	0m44.012s
make -j4

real	3m52.061s
user	9m29.655s
sys	0m45.741s

real	4m22.021s
user	9m14.768s
sys	0m46.114s

real	4m0.422s
user	9m27.873s
sys	0m45.556s
make -j5

real	2m55.522s
user	10m31.254s
sys	0m50.950s

real	2m41.345s
user	10m33.328s
sys	0m51.488s

real	2m51.953s
user	10m31.802s
sys	0m50.077s
make -j6

real	2m16.659s
user	12m9.629s
sys	0m55.561s

real	2m17.007s
user	12m6.317s
sys	0m54.221s

real	2m16.706s
user	12m10.097s
sys	0m55.801s
make -j7

real	2m4.514s
user	13m15.544s
sys	0m58.549s

real	2m3.112s
user	13m20.338s
sys	0m58.757s

real	2m3.730s
user	13m21.831s
sys	0m58.352s
make -j8

real	1m58.447s
user	14m5.079s
sys	1m1.788s

real	1m58.137s
user	14m10.005s
sys	0m59.738s

real	1m58.012s
user	14m8.341s
sys	1m1.265s
make -j9

real	1m57.898s
user	14m12.336s
sys	1m0.014s

real	1m58.186s
user	14m11.321s
sys	1m1.371s

real	1m58.137s
user	14m12.854s
sys	1m0.887s
make -j10

real	1m58.201s
user	14m15.291s
sys	0m59.538s

real	1m58.193s
user	14m15.058s
sys	0m59.277s

real	1m58.072s
user	14m16.114s
sys	0m58.651s
make -j11

real	1m58.321s
user	14m17.124s
sys	0m58.785s

real	1m58.236s
user	14m17.296s
sys	0m58.336s

real	1m58.213s
user	14m18.134s
sys	0m58.026s
make -j12

real	1m58.150s
user	14m18.361s
sys	0m57.722s

real	1m58.540s
user	14m17.575s
sys	0m58.551s

real	1m58.363s
user	14m18.564s
sys	0m57.960s