alex@alex-desktop:/tmp% dd if=/dev/urandom of=test
299212+0 records in
299211+0 records out
153196032 bytes (153 MB) copied, 13.1983 s, 11.6 MB/s

13.21s real  0.04s user  13.16s system  99% cpu  2kB mem $ dd if=/dev/urandom of=test
alex@alex-desktop:/tmp% time cp test /server/tmp
8.65s real  0.00s user  0.35s system  4% cpu  2kB mem $ cp test /server/tmp
alex@alex-desktop:/tmp% time scp test 192.168.0.100:/tmp
test                                                                                                                                                                                                       100%  146MB  48.7MB/s   00:03
3.12s real  2.68s user  0.43s system  99% cpu  6kB mem $ scp test 192.168.0.100:/tmp
alex@alex-desktop:/tmp%