$ du -sh ./binar.file
1,7G ./binar.file
$ time dd if=./binar.file of=/dev/null
3460652+1 records in
3460652+1 records out
1771853970 bytes transferred in 13.713691 secs (129203288 bytes/sec)
real 0m13.740s
user 0m1.143s
sys 0m6.671s
$ time cp ./binar.file /dev/null
real 0m5.295s
user 0m0.006s
sys 0m1.370s