ns-3-history == amd64 in 64-bit mode == gjc@spectrum:ns-3-history$ time ./build-dir/opt-shared/bin/bench-packets --n=100000000 --enable-metadata; time ./build-dir/opt-shared/bin/bench-packets --n=100000000 print=418228 packets/s a=1.81732e+06 packets/s b=3.29316e+06 packets/s c=1.69065e+06 packets/s a-opt=1.72577e+06 packets/s b-opt=2.95473e+06 packets/s c-opt=1.61184e+06 packets/s real 8m57.484s user 8m56.970s sys 0m0.208s print=5.58659e+07 packets/s a=2.18972e+06 packets/s b=3.69932e+06 packets/s c=2.18708e+06 packets/s a-opt=2.19693e+06 packets/s b-opt=3.71168e+06 packets/s c-opt=2.18852e+06 packets/s real 3m58.372s user 3m58.151s sys 0m0.080s == core 2 duo in 32-bit mode == gjc@nazgul:ns-3-history$ time ./build-dir/opt-shared/bin/bench-packets --n=100000000 --enable-metadata; time ./build-dir/opt-shared/bin/bench-packets --n=100000000 print=262451 packets/s a=1.20071e+06 packets/s b=1.96909e+06 packets/s c=1.15872e+06 packets/s a-opt=1.1083e+06 packets/s b-opt=1.71333e+06 packets/s c-opt=1.08944e+06 packets/s real 14m1.786s user 13m53.572s sys 0m1.192s print=3.59712e+07 packets/s a=1.69584e+06 packets/s b=2.60308e+06 packets/s c=1.60082e+06 packets/s a-opt=1.70718e+06 packets/s b-opt=2.61609e+06 packets/s c-opt=1.604e+06 packets/s real 5m21.782s user 5m21.096s sys 0m0.152s