запускал
root@vmi324402:~# dd if=/dev/urandom >> bzip >> dd of=/dev/null
^C13424920+0 records in
13424919+0 records out
6873558528 bytes (6.9 GB, 6.4 GiB) copied, 70.271 s, 97.8 MB/s
6873558528 bytes (6.9 GB, 6.4 GiB) copied, 70.271 s, 97.8 MB/s
на 70 секунд. вывод vmstat -s
1362 non-nice user cpu ticks
0 nice user cpu ticks
6254 system cpu ticks
41533 idle cpu ticks
40 IO-wait cpu ticks
0 IRQ cpu ticks
0 softirq cpu ticks
19 stolen cpu ticks